Document:

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                                                                     EXHIBIT 4.3

                           INVESTOR RIGHTS AGREEMENT
                                    BETWEEN
                             LSI LOGIC CORPORATION
                                      AND
                        LSI LOGIC STORAGE SYSTEMS, INC.
                                 MARCH 15, 2004
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                               TABLE OF CONTENTS

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                                                                      PAGE
                                                                      ----
<S>     <C>                                                           <C>
ARTICLE I  REGISTRATION RIGHTS......................................    1
 1.1    Requested Registration......................................    1
 1.2    Company Registration........................................    3
 1.3    Registration on Form S-3....................................    3
 1.4    Expenses of Registration....................................    3
 1.5    Registration Procedures.....................................    3
 1.6    Indemnification.............................................    4
 1.7    Information by LSI Logic....................................    6
 1.8    Rule 144 Reporting..........................................    6
 1.9    Limitations on Subsequent Registration Rights...............    6
1.10    Termination of Registration Rights..........................    6

ARTICLE II  RIGHT OF FIRST REFUSAL..................................    7
 2.1    Right of First Refusal to LSI Logic.........................    7

ARTICLE III  MISCELLANEOUS..........................................    8
 3.1    Limitation of Liability.....................................    8
 3.2    Entire Agreement............................................    8
 3.3    Governing Law...............................................    8
 3.4    Dispute Resolution..........................................    8
 3.5    Notices.....................................................    8
 3.6    Counterparts................................................    9
 3.7    Binding Effect; Assignment..................................    9
 3.8    Severability................................................    9
 3.9    Failure or Indulgence Not Waiver; Remedies Cumulative.......    9
3.10    Amendment...................................................    9
3.11    Interpretation..............................................    9
</Table>

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<Table>
<Caption>
                                                                      PAGE
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<S>     <C>                                                           <C>

ARTICLE IV  DEFINITIONS.............................................   10
 4.1    Ancillary Agreement.........................................   10
 4.2    Commission..................................................   10
 4.3    Common Stock................................................   10
 4.4    Dispute.....................................................   10
 4.5    Exchange Act................................................   10
 4.6    Indemnified Party...........................................   10
 4.7    Indemnifying Party..........................................   10
 4.8    Initial Public Offering.....................................   10
 4.9    LSI Logic Group.............................................   10
4.10    New Securities..............................................   10
4.11    Person......................................................   10
4.12    Registrable Securities......................................   10
4.13    Register, Registered and Registration.......................   10
4.14    Registration Expenses.......................................   10
4.15    Restricted Securities.......................................   10
4.16    Rule 144....................................................   10
4.17    Rule 145....................................................   11
4.18    Rule 415....................................................   11
4.19    Securities Act..............................................   11
4.20    Selling Expenses............................................   11
4.21    Separation Agreement........................................   11
4.22    SSI Group...................................................   11
</Table>

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                           INVESTOR RIGHTS AGREEMENT

     This Investor Rights Agreement (this "Agreement") is entered into as of
March 15, 2004, between LSI Logic Corporation, a Delaware corporation ("LSI
Logic"), and LSI Logic Storage Systems, Inc., a Delaware corporation ("SSI").
Capitalized terms used herein and not otherwise defined shall have the meanings
ascribed to such terms in Article IV hereof.

                                    RECITALS

     1.  LSI Logic and SSI entered into a Master Separation Agreement dated as
of December 31, 2003, as may be amended from time to time (the "Separation
Agreement") and other Ancillary Agreements to delineate and clarify their
relationship and further separate the businesses conducted by LSI Logic and SSI
(the "Separation").

     2.  In connection with the Separation, the parties intend that SSI grant to
LSI Logic certain rights, as provided for in this Agreement, with respect to the
registration of the shares of SSI capital stock held by LSI Logic and the right
of first refusal of LSI Logic to purchase certain securities of SSI.

     NOW, THEREFORE, in consideration of the foregoing and the covenants and
agreements set forth below, the parties hereto agree as follows:

                                   ARTICLE I

                              REGISTRATION RIGHTS

     1.1  Requested Registration.

     (a) Request for Registration.  Subject to the conditions set forth in this
Section 1.1, if SSI shall receive from LSI Logic a written request signed by an
authorized officer of LSI Logic that SSI effect the registration of all or any
portion of the Registrable Securities (which request shall state the number of
shares of Registrable Securities to be disposed of and the intended methods of
disposition of such shares by LSI Logic), SSI shall, as soon as practicable, use
its commercially reasonable efforts to effect such registration and to permit or
facilitate the sale and distribution of all or such portion of such Registrable
Securities as are specified in such request.

     (b) Limitations on Requested Registration.  SSI shall not be obligated to
effect, or to take any action to effect, any such registration pursuant to this
Section 1.1:

          (i) Prior to the time set forth in the applicable "lock up" provisions
     of the underwriting agreement executed by SSI and the underwriters in
     connection with SSI's Initial Public Offering;

          (ii) After the Company has initiated two such registrations pursuant
     to this Section 1.1 (counting for these purposes only registrations that
     have been declared or ordered effective and pursuant to which securities
     have been sold) in any twelve-month period; or

          (iii) If LSI Logic proposes to dispose of shares of Registrable
     Securities that may be immediately registered on Form S-3 pursuant to a
     request made under Section 1.3 hereof.

     (c) Deferral.  If (i) in the good faith judgment of the Board of Directors
of SSI, the filing of a registration statement covering the Registrable
Securities would be materially detrimental to SSI and the Board of Directors of
SSI concludes, as a result, that it is in the best interests of SSI to defer the
filing of such registration statement at such time, and (ii) SSI shall furnish
to LSI Logic a certificate signed by the Chairman of the Board of Directors of
SSI stating that in the good faith judgment of the Board of Directors of SSI, it
would be materially detrimental to SSI for such registration statement to be
filed in the near future and that it is, therefore, in the best interests of SSI
to defer the filing of such registration statement, then SSI shall have the
right to defer such filing for a period of not more than ninety (90) days after
receipt of the request of LSI Logic; provided, however, that SSI shall not defer
its obligation in this manner more than once in any twelve-month period.

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     (d) Underwriting.  If LSI Logic intends to distribute the Registrable
Securities covered by its request by means of an underwriting, it shall so
advise SSI as a part of its request made pursuant to this Section 1.1. In such
event, the right of LSI Logic to include all or any portion of its Registrable
Securities in a registration pursuant to this Section 1.1 shall be conditioned
upon LSI Logic's participation in an underwriting and the inclusion of LSI
Logic's Registrable Securities to the extent provided herein. If SSI shall
request inclusion in any registration pursuant to Section 1.1 of securities
being sold for its own account, or if other persons shall request inclusion in
any registration pursuant to Section 1.1, LSI Logic may, in its sole discretion,
offer to include such securities in the underwriting and such offer shall be
conditioned upon the participation of SSI or such other persons in such
underwriting and the inclusion of SSI's and such person's other securities of
SSI and their acceptance of the further applicable provisions of this Section 1.
SSI shall (together with LSI Logic and other persons proposing to distribute
their securities through such underwriting) enter into an underwriting agreement
in customary form with the representative of the underwriter or underwriters
selected for such underwriting. LSI Logic and SSI shall jointly select the
underwriter or underwriters for such registration.

     Notwithstanding any other provision of this Section 1.1, if the
underwriters advise LSI Logic in writing that marketing factors require a
limitation on the number of shares to be underwritten, the number of Registrable
Securities that may be so included shall be allocated as follows: (i) first, to
LSI Logic; and (ii) second, to SSI, which SSI may allocate, at its discretion,
for its own account, or for the account of other holders or employees of SSI.

     If a person who has requested inclusion in such registration as provided
above does not agree to the terms of any such underwriting, such person shall be
excluded therefrom by written notice from SSI, the underwriter or LSI Logic. The
securities so excluded shall also be withdrawn from such registration. If shares
are so withdrawn from the registration and if the number of shares to be
included in such registration was previously reduced as a result of marketing
factors pursuant to this Section 1.1(d), then SSI shall offer to LSI Logic the
right to include additional Registrable Securities in the registration in an
aggregate amount equal to the number of shares so withdrawn, with such shares to
be allocated among LSI Logic or such other persons requesting additional
inclusion, in the manner set forth above.

     1.2  Company Registration.

     (a) Company Registration.  If SSI shall determine to register any of its
securities either for its own account or the account of a security holder or
holders, other than a registration pursuant to Section 1.1 or Section 1.3, a
registration relating solely to employee benefit plans, a registration relating
to the offer and sale of debt securities, a registration relating to a corporate
reorganization or other Rule 145 transaction, or a registration on any
registration form that does not permit secondary sales, SSI shall:

          (i) promptly give written notice of the proposed registration to LSI
     Logic; and

          (ii) use its commercially reasonable efforts to include in such
     registration (and any related qualification under state securities laws or
     other compliance), except as set forth in Section 1.2(b) below, and in any
     underwriting involved therein, all of such Registrable Securities as are
     specified in a written request or requests made by LSI Logic received by
     SSI within twenty (20) days after such written notice from SSI is mailed or
     delivered. Such written request may specify all or any portion of the
     Registrable Securities.

     (b) Underwriting.  If the registration of which SSI gives notice is for a
registered public offering involving an underwriting, SSI shall so advise LSI
Logic as a part of the written notice given pursuant to Section 1.2(a)(i). In
such event, the right of LSI Logic to registration pursuant to this Section 1.2
shall be conditioned upon LSI Logic's participation in such underwriting and the
inclusion of such LSI Logic's Registrable Securities in the underwriting to the
extent provided herein. If LSI Logic proposes to distribute its securities
through such underwriting it shall (together with SSI) enter into an
underwriting agreement in customary form with the representative of the
underwriter or underwriters selected by SSI, subject to LSI Logic's written
consent, which shall not be unreasonably withheld.

     Notwithstanding any other provision of this Section 1.2, if the
underwriters advise SSI in writing that marketing factors require a limitation
on the number of shares to be underwritten, the underwriters may

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(subject to the limitations set forth below) limit the number of Registrable
Securities to be included in the registration and underwriting. SSI shall so
advise LSI Logic, and the number of shares of securities that are entitled to be
included in the registration and underwriting shall be allocated as follows: (i)
first, to SSI for securities being sold for its own account, and (ii) second, to
LSI Logic; and (iii) third, to any other holders of SSI securities.

     If a person who has requested inclusion in such registration as provided
above does not agree to the terms of any such underwriting, such person shall be
excluded therefrom by written notice from SSI or the underwriter. The securities
so excluded shall also be withdrawn from such registration. If shares are so
withdrawn from the registration and if the number of shares to be included in
such registration was previously reduced as a result of marketing factors
pursuant to Section 1.2(b), then SSI shall offer to LSI Logic the right to
include additional Registrable Securities in the registration in an aggregate
amount equal to the number of shares so withdrawn, with such shares to be
allocated among LSI Logic or such other persons requesting additional inclusion,
in the manner set forth above.

     (c) Right to Terminate Registration.  SSI shall have the right to terminate
or withdraw any registration initiated by it under this Section 1.2 prior to the
effectiveness of such registration whether or not LSI Logic has elected to
include securities in such registration.

     1.3  Registration on Form S-3.

     (a) Request for Form S-3 Registration.  After its Initial Public Offering,
SSI shall use its commercially reasonable efforts to qualify for registration on
Form S-3 or any comparable or successor form or forms. After SSI has qualified
for the use of Form S-3, in addition to the rights contained in the foregoing
provisions of this Section 1 and subject to the conditions set forth in this
Section 1.3, if SSI shall receive from LSI Logic a written request that SSI
effect any registration on Form S-3 or any similar short form registration
statement with respect to all or any portion of the Registrable Securities
(which request shall state the number of shares of Registrable Securities to be
disposed of and the intended methods of disposition of such shares by LSI
Logic), SSI shall use its commercially reasonable efforts to effect such
registration and to permit or facilitate the sale an distribution of all or such
portion of such Registrable Securities as are specified in such request.

     (b) Deferral.  The provisions of Section 1.1(c) shall apply to any
registration pursuant to this Section 1.3.

     (c) Underwriting.  If LSI Logic requests registration under this Section
1.3 intending to distribute the Registrable Securities covered by its request by
means of an underwriting, the provisions of Sections 1.1(d) shall apply to such
registration.

     1.4  Expenses of Registration.  All Registration Expenses incurred in
connection with registrations pursuant to Section 1.1, Section 1.2 and Section
1.3 hereof shall be borne by SSI; provided, however, that SSI shall not be
required to pay for any expenses of any registration proceeding begun pursuant
to Section 1.1 or Section 1.3 if the registration request is subsequently
withdrawn at the request of LSI Logic. All Selling Expenses relating to
securities registered on behalf of LSI Logic and any other holders of securities
shall be borne by LSI Logic and such other holders of securities included in
such registration pro rata among each other on the basis of the number of
Registrable Securities so registered.

     1.5  Registration Procedures.  In the case of each registration effected by
SSI pursuant to Section 1, SSI shall keep LSI Logic advised in writing as to the
initiation of each registration and as to the completion thereof. At its
expense, SSI shall use its commercially reasonable efforts to:

          (a) Keep such registration effective for a period of ending on the
     earlier of the date which is sixty (60) days from the effective date of the
     registration statement or such time as LSI Logic has completed the
     distribution described in the registration statement relating thereto;

          (b) Prepare and file with the Commission such amendments and
     supplements to such registration statement and the prospectus used in
     connection with such registration statement as may be necessary to comply
     with the provisions of the Securities Act with respect to the disposition
     of all securities covered by such registration statement for the period set
     forth in Section 1.5(a) above;

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          (c) Furnish such number of prospectuses, including any preliminary
     prospectuses, and other documents incident thereto, including any amendment
     of or supplement to the prospectus, as LSI Logic from time to time may
     reasonably request;

          (d) Register and qualify the securities covered by such registration
     statement under such other securities laws of such jurisdiction as shall be
     reasonably requested by LSI Logic;

          (e) Notify each seller of Registrable Securities covered by such
     registration statement at any time when a prospectus relating thereto is
     required to be delivered under the Securities Act of the happening of any
     event as a result of which the prospectus included in such registration
     statement, as then in effect, includes an untrue statement of a material
     fact or omits to state a material fact required to be stated therein or
     necessary to make the statements therein not misleading or incomplete in
     light of the circumstances then existing, and following such notification
     promptly prepare and furnish to such seller a reasonable number of copies
     of a supplement to or an amendment of such prospectus as may be necessary
     so that, as thereafter delivered to the purchasers of such shares, such
     prospectus shall not include an untrue statement of a material fact or omit
     to state a material fact required to be stated therein or necessary to make
     the statements therein not misleading or incomplete in light of the
     circumstances then existing;

          (f) Furnish, on the date that such Registrable Securities are
     delivered to the underwriters for sale, if such securities are being sold
     through underwriters, (i) an opinion, dated as of such date, of the counsel
     representing SSI for the purposes of such registration, in form and
     substance as is customarily given to underwriters in an underwritten public
     offering, addressed to the underwriters, if any, and reasonably
     satisfactory to LSI Logic and (ii) a "comfort" letter dated as of such
     date, from the independent certified public accountants of SSI, in form and
     substance as is customarily given by independent certified public
     accountants to underwriters in an underwritten public offering, addressed
     to the underwriters;

          (g) Provide a transfer agent and registrar for all Registrable
     Securities registered pursuant to such registration statement and a CUSIP
     number for all such Registrable Securities, in each case not later than the
     effective date of such registration;

          (h) Comply with all applicable rules and regulations of the
     Commission, and make available to its security holders, as soon as
     reasonably practicable, an earnings statement covering the period of at
     least twelve months, but not more than eighteen months, beginning with the
     first month after the effective date of the Registration Statement, which
     earnings statement shall satisfy the provisions of Section 11(a) of the
     Securities Act;

          (i) Cause all such Registrable Securities registered pursuant
     hereunder to be listed on each securities exchange on which similar
     securities issued by SSI are then listed; and

          (j) In connection with any underwritten offering pursuant to a
     registration statement filed pursuant to Section 1.1 or Section 1.3 hereof,
     enter into an underwriting agreement in form reasonably necessary to effect
     the offer and sale of Common Stock; provided, however, that such
     underwriting agreement contains reasonable and customary provisions, and
     provided further, however, that LSI Logic shall also enter into and perform
     its obligations under such an agreement.

     1.6  Indemnification.

     (a) To the extent permitted by law, SSI will indemnify and hold harmless
LSI Logic, each of its officers, directors and partners, legal counsel, and
accountants and each person controlling LSI Logic within the meaning of Section
15 of the Securities Act, with respect to which registration, qualification, or
compliance has been effected pursuant to this Section 1, and each underwriter,
if any, and each person who controls within the meaning of Section 15 of the
Securities Act any underwriter, against all expenses, claims, losses, damages,
and liabilities (or actions, proceedings, or settlements in respect thereof)
arising out of or based on: (i) any untrue statement (or alleged untrue
statement) of a material fact contained or incorporated by reference in any
prospectus, offering circular, or other document (including any related
registration statement, notification, or the like) incident to any such
registration, qualification, or compliance, (ii) any omission (or alleged

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omission) to state therein a material fact required to be stated therein or
necessary to make the statements therein not misleading, or (iii) any violation
(or alleged violation) by SSI of the Securities Act, any state securities laws
or any rule or regulation thereunder applicable to SSI and relating to action or
inaction required of SSI in connection with any offering covered by such
registration, qualification, or compliance, and SSI will reimburse LSI Logic,
each of its officers, directors, partners, legal counsel, and accountants and
each person controlling LSI Logic, each such underwriter, and each person who
controls any such underwriter, for any legal and any other expenses reasonably
incurred in connection with investigating and defending or settling any such
claim, loss, damage, liability, or action; provided, however, that SSI will not
be liable in any such case to the extent that any such claim, loss, damage,
liability, or action arises out of or is based on any untrue statement or
omission based upon written information furnished to SSI by LSI Logic, any of
LSI Logic's officers, directors, partners, legal counsel or accountants, any
person controlling LSI Logic, such underwriter or any person who controls any
such underwriter and stated to be specifically for use therein; and provided
further, however, that the indemnity agreement contained in this Section 1.6(a)
shall not apply to amounts paid in settlement of any such loss, claim, damage,
liability, or action if such settlement is effected without the consent of SSI
(which consent shall not be unreasonably withheld).

     (b) To the extent permitted by law, LSI Logic will, if Registrable
Securities held by LSI Logic are included in the securities as to which such
registration, qualification, or compliance is being effected, indemnify and hold
harmless SSI, each of its directors, officers, partners, legal counsel, and
accountants and each underwriter, if any, of SSI's securities covered by such a
registration statement, each person who controls SSI or such underwriter within
the meaning of Section 15 of the Securities Act, LSI Logic, and each of its
officers, directors, and partners, and each person controlling LSI Logic,
against all claims, losses, damages and liabilities (or actions in respect
thereof) arising out of or based on: (i) any untrue statement (or alleged untrue
statement) of a material fact contained or incorporated by reference in any such
registration statement, prospectus, offering circular, or other document, or
(ii) any omission (or alleged omission) to state therein a material fact
required to be stated therein or necessary to make the statements therein not
misleading, and will reimburse SSI and SSI's directors, officers, partners,
legal counsel, and accountants, persons, underwriters, or control persons for
any legal or any other expenses reasonably incurred in connection with
investigating or defending any such claim, loss, damage, liability, or action,
in each case to the extent, but only to the extent, that such untrue statement
(or alleged untrue statement) or omission (or alleged omission) is made in such
registration statement, prospectus, offering circular, or other document in
reliance upon and in conformity with written information furnished to SSI by LSI
Logic and stated to be specifically for use therein; provided, however, that the
obligations of LSI Logic hereunder shall not apply to amounts paid in settlement
of any such claims, losses, damages, or liabilities (or actions in respect
thereof) if such settlement is effected without the consent of LSI Logic (which
consent shall not be unreasonably withheld); and provided further, however, that
in no event shall any indemnity under this Section 1.6 exceed the net proceeds
from the offering received by LSI Logic.

     (c) Each party entitled to indemnification under this Section 1.6 (the
"Indemnified Party") shall give notice to the party required to provide
indemnification (the "Indemnifying Party") promptly after such Indemnified Party
has actual knowledge of any claim as to which indemnity may be sought, and shall
permit the Indemnifying Party to assume the defense of such claim or any
litigation resulting therefrom; provided, however, that counsel for the
Indemnifying Party, who shall conduct the defense of such claim or any
litigation resulting therefrom, shall be approved by the Indemnified Party
(whose approval shall not be unreasonably withheld), and the Indemnified Party
may participate in such defense at such party's expense; and provided further,
however, that the failure of any Indemnified Party to give notice as provided
herein shall not relieve the Indemnifying Party of its obligations under this
Section 1.6, to the extent such failure is not prejudicial. No Indemnifying
Party, in the defense of any such claim or litigation, shall, except with the
consent of each Indemnified Party, consent to entry of any judgment or enter
into any settlement that does not include as an unconditional term thereof the
giving by the claimant or plaintiff to such Indemnified Party of a release from
all liability in respect to such claim or litigation. Each Indemnified Party
shall furnish such information regarding itself or the claim in question as an
Indemnifying Party may reasonably request in writing and as shall be reasonably
required in connection with defense of such claim and litigation resulting
therefrom.

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     (d) If the indemnification provided for in this Section 1.6 is held by a
court of competent jurisdiction to be unavailable to an Indemnified Party with
respect to any loss, liability, claim, damage, or expense referred to herein,
then the Indemnifying Party, in lieu of indemnifying such Indemnified Party
hereunder, shall contribute to the amount paid or payable by such Indemnified
Party as a result of such loss, liability, claim, damage, or expense in such
proportion as is appropriate to reflect the relative fault of the Indemnifying
Party on the one hand and of the Indemnified Party on the other in connection
with the statements or omissions that resulted in such loss, liability, claim,
damage, or expense as well as any other relevant equitable considerations. The
relative fault of the Indemnifying Party and of the Indemnified Party shall be
determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission to state a material fact
relates to information supplied by the Indemnifying Party or by the Indemnified
Party and the parties' relative intent, knowledge, access to information, and
opportunity to correct or prevent such statement or omission.

     (e) Notwithstanding the foregoing, to the extent that the provisions on
indemnification and contribution contained in the underwriting agreement entered
into in connection with the underwritten public offering are in conflict with
the foregoing provisions, the provisions in the underwriting agreement shall
control.

     1.7  Information by LSI Logic.  LSI Logic shall furnish to SSI such
information regarding LSI Logic and the distribution proposed by LSI Logic as
SSI may reasonably request in writing and as shall be reasonably required in
connection with any registration, qualification, or compliance referred to in
this Section 1.

     1.8  Rule 144 Reporting.  With a view to making available the benefits of
certain rules and regulations of the Commission that may permit the sale of the
Restricted Securities to the public without registration, SSI agrees to use its
best efforts to:

          (a) Make and keep public information regarding SSI available as those
     terms are understood and defined in Rule 144 under the Securities Act, at
     all times from and after ninety (90) days following the effective date of
     the first registration under the Securities Act filed by SSI for an
     offering of its securities to the general public;

          (b) File with the Commission in a timely manner all reports and other
     documents required of SSI under the Securities Act and the Exchange Act at
     any time after it has become subject to such reporting requirements; and

     So long as LSI Logic owns any Restricted Securities, furnish to LSI Logic
forthwith upon written request a written statement by SSI as to its compliance
with the reporting requirements of Rule 144 (at any time from and after ninety
(90) days following the effective date of the first registration statement filed
by SSI for an offering of its securities to the general public), and of the
Securities Act and the Exchange Act (at any time after it has become subject to
such reporting requirements), a copy of the most recent annual or quarterly
report of SSI, and such other reports and documents so filed as LSI Logic may
reasonably request in availing itself of any rule or regulation of the
Commission allowing LSI Logic to sell any such securities without registration.

     1.9  Limitations on Subsequent Registration Rights.  From and after the
date of this Agreement, SSI shall not, without the prior written consent of a
LSI Logic, enter into any agreement with any holder or prospective holder of any
securities of SSI giving such holder or prospective holder any registration
rights the terms of which are pari passu with or senior to the registration
rights granted to LSI Logic hereunder.

     1.10  Termination of Registration Rights.  The right of LSI Logic to
request registration or inclusion in any registration pursuant to Section 1.1,
Section 1.2 or Section 1.3 and the limitations on SSI with respect to the
granting of subsequent registration rights pursuant to Section 1.9 shall
terminate on the earlier of (i) such date, on or after the closing of the
Company's Initial Public Offering, on which all shares of Registrable Securities
held or entitled to be held upon conversion by LSI Logic may immediately be sold
under Rule 144 during any ninety (90)-day period, and (ii) three (3) years after
the closing of SSI's Initial Public Offering.

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                                   ARTICLE II

                             RIGHT OF FIRST REFUSAL

     2.1  Right of First Refusal to LSI Logic.  SSI hereby grants to LSI Logic
(subject to subsequent adjustments for stock splits, stock dividends, reverse
stock splits and the like), the right of first refusal to purchase its pro rata
share of New Securities (as defined in Section 2.1(a)) that SSI may, from time
to time, propose to sell and issue after the date of this Agreement. LSI Logic's
pro rata share, for purposes of this right of first refusal, is equal to the
ratio of (a) the number of shares of Common Stock owned by LSI Logic immediately
prior to the issuance of New Securities (assuming exercise of all outstanding
convertible securities, rights, options and warrants, directly or indirectly,
into Common Stock held by LSI Logic) to (b) the total number of shares of Common
Stock outstanding immediately prior to the issuance of New Securities (assuming
exercise of all outstanding convertible securities, rights, options and
warrants, directly or indirectly, held by all of holders of all of SSI's
securities.

     (a) "New Securities" shall mean any capital stock (including Common Stock
and/or Preferred Stock) of SSI whether now authorized or not, and rights,
convertible securities, options or warrants to purchase such capital stock, and
securities of any type whatsoever that are, or may become, exercisable or
convertible into capital stock; provided, however, that the term "New
Securities" does not include:

          (i) securities issued or issuable to officers, employees, directors,
     consultants, placement agents, and other service providers of SSI (or any
     subsidiary) pursuant to stock grants, option plans, purchase plans,
     agreements or other employee stock incentive programs or arrangements
     approved by the Board of Directors of SSI;

          (ii) securities issued pursuant to the conversion or exercise of any
     outstanding convertible or exercisable securities as of this date of this
     Agreement;

          (iii) securities offered pursuant to SSI's Initial Public Offering;

          (iv) securities issued or issuable pursuant to the acquisition of
     another corporation by SSI by merger, purchase of substantially all of the
     assets or other reorganization or to a joint venture agreement, provided,
     that such issuances are approved by the Board of Directors of SSI;

          (v) securities issued or issuable to banks, equipment lessors or other
     financial institutions pursuant to a commercial leasing or debt financing
     transaction approved by the Board of Directors of SSI;

          (vi) securities issued or issuable in connection with sponsored
     research, collaboration, technology license, development, OEM, marketing or
     other similar agreements or strategic partnerships approved by the Board of
     Directors of SSI;

          (vii) securities issued to suppliers or third party service providers
     in connection with the provision of goods or services pursuant to
     transactions approved by the Board of Directors of SSI;

          (viii) securities of SSI which are otherwise excluded by the
     affirmative unanimous vote of the Board of Directors of SSI; and

          (ix) any right, option or warrant to acquire any security convertible
     into the securities excluded from the definition of New Securities pursuant
     to Section 2.1(a)(i) through Section 2.1(a)(viii) above.

     (b) In the event SSI proposes to undertake an issuance of New Securities,
it shall give LSI Logic written notice of its intention, describing the type of
New Securities, and their price and the general terms upon which SSI proposes to
issue the same. LSI Logic shall have twenty (20) days after any such notice is
mailed or delivered to agree to purchase LSI Logic's pro rata share of such New
Securities for the price and upon the terms specified in the notice by giving
written notice to SSI and stating therein the quantity of New Securities to be
purchased.

     (c) In the event LSI Logic fails to exercise fully the right of first
refusal within said twenty (20) day period (the "Election Period"), SSI shall
have sixty (60) days thereafter to sell or enter into an agreement (pursuant to
which the sale of New Securities covered thereby shall be closed, if at all,
within sixty (60) days

                                        7
<PAGE>

from the date of said agreement) to sell that portion of the New Securities with
respect to which LSI Logic's right of first refusal option set forth in this
Section 2.1 was not exercised, at a price and upon terms no more favorable to
the purchasers thereof than specified in SSI's notice to LSI Logic delivered
pursuant to Section 2.1(b). In the event SSI has not sold within such sixty (60)
day period following the Election Period, or such sixty (60) day period
following the date of said agreement, SSI shall not thereafter issue or sell any
New Securities, without first again offering such securities to LSI Logic in the
manner provided in this Section 2.1.

     (d) The right of first refusal granted under this Agreement shall expire
upon the earlier of (i) three (3) years after the Initial Public Offering and
(ii) the distribution by LSI Logic to the holders of its common stock, by means
of a pro rata distribution, of shares of SSI Common Stock then owned by LSI
Logic in a transaction intended to qualify as a tax-free distribution under
section 355 of the Internal Revenue Code of 1986, as amended.

                                  ARTICLE III

                                 MISCELLANEOUS

     3.1  Limitation of Liability.  IN NO EVENT SHALL ANY MEMBER OF THE LSI
LOGIC GROUP OR SSI GROUP BE LIABLE TO ANY OTHER MEMBER OF THE LSI LOGIC GROUP OR
SSI GROUP FOR ANY SPECIAL, CONSEQUENTIAL, INDIRECT, INCIDENTAL OR PUNITIVE
DAMAGES OR LOST PROFITS, HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY
(INCLUDING NEGLIGENCE) ARISING IN ANY WAY OUT OF THIS AGREEMENT, WHETHER OR NOT
SUCH PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES; PROVIDED,
HOWEVER, THAT THE FOREGOING LIMITATIONS SHALL NOT LIMIT EITHER PARTY'S
INDEMNIFICATION OBLIGATIONS FOR LIABILITIES AS SET FORTH IN SECTION 1.6 HEREOF
OR IN THE INDEMNIFICATION AND INSURANCE MATTERS AGREEMENT.

     3.2  Entire Agreement.  This Agreement, the Separation Agreement, the other
Ancillary Agreements and the exhibits and schedules referenced or attached
hereto and thereto, constitute the entire agreement between the parties with
respect to the subject matter hereof and thereof and shall supersede all prior
written and oral and all contemporaneous oral agreements and understandings with
respect to the subject matter hereof and thereof.

     3.3  Governing Law.  This Agreement shall be construed in accordance with,
and all Disputes hereunder shall be governed by, the laws of the State of
California, excluding its conflict of law rules and the United Nations
Convention on Contracts for the International Sale of Goods. The Superior Court
of Santa Clara County and/or the United States District Court for the Northern
District of California shall have jurisdiction and venue over all Disputes
between the parties that are permitted to be brought in a court of law pursuant
to Section 3.4 below.

     3.4  Dispute Resolution.  Any Disputes under this Agreement shall be
addressed using the same procedure set forth in the Separation Agreement.

     3.5  Notices.  Notices, offers, requests or other communications required
or permitted to be given by either party pursuant to the terms of this Agreement
shall be given in writing to the respective parties at the following addresses:

     if to LSI Logic:

     LSI Logic Corporation
     1621 Barber Lane
     Milpitas, CA 95035
     Attention: General Counsel
     Fax: (408) 433-6896

                                        8
<PAGE>

     if to SSI:

     LSI Logic Storage Systems, Inc.
     1621 Barber Lane
     Milpitas, CA 95035
     Attention: General Counsel
     Fax: (408) 433-8323

or to such other address as the party to whom notice is given may have
previously furnished to the other in writing as provided herein. Any notice
involving non-performance, termination, or renewal shall be sent by hand
delivery, recognized overnight courier or, within the United States, may also be
sent via certified mail, return receipt requested. All other notices may also be
sent by fax, confirmed by first class mail. All notices shall be deemed to have
been given and received on the earlier of actual delivery or three (3) days from
the date of postmark.

     3.6  Counterparts.  This Agreement, including the exhibits and schedules
hereto, may be executed in counterparts, each of which shall be deemed to be an
original but all of which shall constitute one and the same agreement.

     3.7  Binding Effect; Assignment.  This Agreement shall inure to the benefit
of and be binding upon the parties hereto and their respective legal
representatives and successors in interest, and nothing in this Agreement,
express or implied, is intended to confer upon any other Person any rights or
remedies of any nature whatsoever under or by reason of this Agreement. This
Agreement may be enforced separately by each member of the LSI Logic Group and
each member of the SSI Group. Neither party may assign this Agreement or any
rights or obligations hereunder, without the prior written consent of the other
party, and any such assignment shall be void. Any permitted assignee shall agree
to perform the obligations of the assignor of this Agreement, and this Agreement
shall inure to the benefit of and be binding upon any permitted assignee.

     3.8  Severability.  If any term or other provision of this Agreement or the
exhibits or schedules attached hereto is determined by a nonappealable decision
by a court, administrative agency or arbitrator to be invalid, illegal or
incapable of being enforced by any rule of law or public policy, all other
conditions and provisions of this Agreement shall nevertheless remain in full
force and effect so long as the economic or legal substance of the transactions
contemplated hereby is not affected in any manner materially adverse to either
party. Upon such determination that any term or other provision is invalid,
illegal or incapable of being enforced, the parties hereto shall negotiate in
good faith to modify this Agreement so as to effect the original intent of the
parties as closely as possible in an acceptable manner to the end that
transactions contemplated hereby are fulfilled to the fullest extent possible.

     3.9  Failure or Indulgence Not Waiver; Remedies Cumulative.  No failure or
delay on the part of either party hereto in the exercise of any right hereunder
shall impair such right or be construed to be a waiver of, or acquiescence in,
any breach of any representation, warranty or agreement herein, nor shall any
single or partial exercise or waiver of any such right preclude other or further
exercise thereof or of any other right. All rights and remedies existing under
this Agreement or the exhibits or schedules attached hereto are cumulative to,
and not exclusive of, any rights or remedies otherwise available.

     3.10  Amendment.  No change or amendment shall be made to this Agreement or
the exhibits or schedules attached hereto except by an instrument in writing
signed on behalf of each of the parties to such agreement.

     3.11  Interpretation.  The headings contained in this Agreement, in any
exhibit or schedule attached hereto and in the table of contents to this
Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement. Any capitalized term used in any
exhibit or schedule but not otherwise defined therein, shall have the meaning
assigned to such term in this Agreement. When a reference is made in this
Agreement to an article, section, exhibit or schedule, such reference shall be
to an article or section of, or an exhibit or schedule to, this Agreement,
unless otherwise indicated.

                                        9
<PAGE>

                                   ARTICLE IV

                                  DEFINITIONS

     4.1  Ancillary Agreement.  "Ancillary Agreement" has the meaning set forth
in the Separation Agreement.

     4.2  Commission.  "Commission" shall mean the Securities and Exchange
Commission or any other federal agency at the time administering the Securities
Act.

     4.3  Common Stock.  "Common Stock" means the common stock of SSI, including
any and all classes of such common stock.

     4.4  Dispute.  "Dispute" has the meaning set forth in the Separation
Agreement.

     4.5  Exchange Act.  "Exchange Act" shall mean the Securities Exchange Act
of 1934, as amended, or any similar successor federal statute and the rules and
regulations thereunder, all as the same shall be in effect from time to time.

     4.6  Indemnified Party.  "Indemnified Party" shall have the meaning set
forth in Section 1.6(c) hereto.

     4.7  Indemnifying Party.  "Indemnifying Party" shall have the meaning set
forth in Section 1.6(c) hereto.

     4.8  Initial Public Offering.  "Initial Public Offering" shall mean the
closing of the SSI's first firm commitment underwritten public offering of the
SSI's Class A Common Stock registered under the Securities Act.

     4.9  LSI Logic Group. "LSI Logic Group" has the meaning set forth in the
Separation Agreement.

     4.10  New Securities.  "New Securities" shall have the meaning set forth in
Section 2.1(a) hereto.

     4.11  Person.  "Person" has the meaning set forth in the Separation
Agreement.

     4.12  Registrable Securities.  "Registrable Securities" shall mean (i) any
and all shares of Common Stock and (ii) any Common Stock issued as a dividend or
other distribution with respect to or in exchange for or in replacement of the
shares referenced in (i) above; provided, however, that Registrable Securities
shall not include any shares of Common Stock described in clause (i) or (ii)
above which have previously been registered or which have been sold to the
public either pursuant to a registration statement or Rule 144, or which have
been sold in a private transaction in which the transferor's rights under this
Agreement are not validly assigned in accordance with this Agreement.

     4.13  Register, Registered and Registration.  The terms "register,"
"registered" and "registration" shall refer to a registration effected by
preparing and filing a registration statement in compliance with the Securities
Act and applicable rules and regulations thereunder, and the declaration or
ordering of the effectiveness of such registration statement.

     4.14  Registration Expenses.  "Registration Expenses" shall mean all
expenses incurred in effecting any registration pursuant to this Agreement,
including, without limitation, all registration, qualification, and filing fees,
printing expenses, escrow fees, fees and disbursements of counsel for SSI and
one special counsel for LSI Logic, state securities law fees and expenses, and
expenses of any regular or special audits incident to or required by any such
registration, but shall not include Selling Expenses, fees and disbursements of
other counsel for LSI Logic and the compensation of regular employees of SSI,
which shall be paid in any event by SSI.

     4.15  Restricted Securities.  "Restricted Securities" shall mean any
Registrable Securities that have not been registered under the Securities Act.

     4.16  Rule 144.  "Rule 144" shall mean Rule 144 as promulgated by the
Commission under the Securities Act, as such Rule may be amended from time to
time, or any similar successor rule that may be promulgated by the Commission.

                                        10
<PAGE>

     4.17  Rule 145.  "Rule 145" shall mean Rule 145 as promulgated by the
Commission under the Securities Act, as such Rule may be amended from time to
time, or any similar successor rule that may be promulgated by the Commission

     4.18  Rule 415.  "Rule 415" shall mean Rule 415 as promulgated by the
Commission under the Securities Act, as such Rule may be amended from time to
time, or any similar successor rule that may be promulgated by the Commission.

     4.19  Securities Act.  "Securities Act" shall mean the Securities Act of
1933, as amended, or any similar successor federal statute and the rules and
regulations thereunder, all as the same shall be in effect from time to time.

     4.20  Selling Expenses.  "Selling Expenses" shall mean all underwriting
discounts, selling commissions and stock transfer taxes applicable to the sale
of Registrable Securities and fees and disbursements of counsel for LSI Logic
(other than the fees and disbursements of one special counsel to LSI Logic
included in Registration Expenses).

     4.21  Separation Agreement.  "Separation Agreement" has the meaning set
forth in the Recitals hereof.

     4.22  SSI Group. "SSI Group" has the meaning set forth in the Separation
Agreement.

                  [Remainder of Page Intentionally Left Blank]

                                        11
<PAGE>

     IN WITNESS WHEREOF, the parties have signed this Investor Rights Agreement
effective as of the date first set forth above.

<Table>
<S>                                            <C>
LSI LOGIC CORPORATION                          LSI LOGIC STORAGE SYSTEMS, INC.

By: /s/ WILFRED J. CORRIGAN                    By: /s/ THOMAS GEORGENS
-------------------------                      -------------------------

Name: Wilfred J. Corrigan                      Name: Thomas Georgens
-------------------------                      -------------------------

Title: Chairman/CEO                            Title: President
-------------------------                      -------------------------
</Table>

                 [SIGNATURE PAGE TO INVESTOR RIGHTS AGREEMENT]

                                        12<PAGE>

                                                                    EXHIBIT 10.2

                        LSI LOGIC STORAGE SYSTEMS, INC.
                           2004 EQUITY INCENTIVE PLAN
                         (EFFECTIVE FEBRUARY 12, 2004)
<PAGE>

                               TABLE OF CONTENTS

<Table>
<Caption>
                                                                             PAGE
                                                                             ----
<S>            <C>                                                           <C>
SECTION 1      Background and Purpose......................................     1
  1.1........  Background and Effective Date                                    1
  1.2........  Purpose of the Plan                                              1

SECTION 2      Definitions.................................................     1
  2.1          "1934 Act"..................................................     1
  2.2          "Affiliate".................................................     1
  2.3          "Affiliated SAR"............................................     1
  2.4          "Award".....................................................     1
  2.5          "Award Agreement"...........................................     1
  2.6          "Board" or "Board of Directors".............................     1
  2.7          "Cash Flow".................................................     1
  2.8          "Code"......................................................     1
  2.9          "Committee".................................................     1
  2.10         "Company"...................................................     2
  2.11         "Director"..................................................     2
  2.12         "Disability"................................................     2
  2.13         "Earnings Per Share"........................................     2
  2.14         "Employee"..................................................     2
  2.15         "Exchange Program"..........................................     2
  2.16         "Exercise Price"............................................     2
  2.17         "Fair Market Value".........................................     2
  2.18         "Fiscal Year"...............................................     2
  2.19         "Freestanding SAR"..........................................     2
  2.20         "Grant Date"................................................     2
  2.21         "Incentive Stock Option"....................................     2
  2.22         "Nonemployee Director"......................................     2
  2.23         "Nonqualified Stock Option".................................     2
  2.24         "Option"....................................................     2
  2.25         "Participant"...............................................     2
  2.26         "Performance Goals".........................................     2
  2.27         "Performance Share".........................................     2
  2.28         "Performance Unit"..........................................     3
  2.29         "Period of Restriction".....................................     3
  2.30         "Plan"......................................................     3
  2.31         "Profit After Tax"..........................................     3
  2.32         "Profit Before Tax".........................................     3
  2.33         "Restricted Stock"..........................................     3
  2.34         "Retirement"................................................     3
  2.35         "Return on Capital".........................................     3
  2.36         "Return on Equity"..........................................     3
  2.37         "Return on Sales"...........................................     3
</Table>

                                        i
<PAGE>

<Table>
<Caption>
                                                                             PAGE
                                                                             ----
<S>            <C>                                                           <C>
  2.38         "Revenue"...................................................     3
  2.39         "Rule 16b-3"................................................     3
  2.40         "Section 16 Person".........................................     3
  2.41         "Shares"....................................................     3
  2.42         "Stock Appreciation Right" or "SAR".........................     3
  2.43         "Subsidiary"................................................     3
  2.44         "Tandem SAR"................................................     3
  2.45         "Termination of Service"....................................     3
  2.46         "Total Shareholder Return"..................................     4

SECTION 3      Administration..............................................     4
  3.1          The Committee...............................................     4
  3.2          Authority of the Committee..................................     4
  3.3          Delegation by the Committee.................................     4
  3.4          Decisions Binding...........................................     4

SECTION 4      Shares Subject to the Plan..................................     4
  4.1          Number of Shares............................................     4
  4.2          Lapsed Awards...............................................     4
  4.3          Adjustments in Awards and Authorized Shares.................     4

SECTION 5      Stock Options...............................................     5
  5.1          Grant of Options............................................     5
  5.2          Award Agreement.............................................     5
  5.3          Exercise Price..............................................     5
  5.4          Expiration of Options.......................................     5
  5.5          Exercisability of Options...................................     6
  5.6          Payment.....................................................     6
  5.7          Restrictions on Share Transferability.......................     6
  5.8          Certain Additional Provisions for Incentive Stock Options...     6

SECTION 6      Restricted Stock............................................     6
  6.1          Grant of Restricted Stock...................................     6
  6.2          Restricted Stock Agreement..................................     7
  6.3          Transferability.............................................     7
  6.4          Other Restrictions..........................................     7
  6.5          Removal of Restrictions.....................................     7
  6.6          Voting Rights...............................................     7
  6.7          Dividends and Other Distributions...........................     7
  6.8          Return of Restricted Stock to Company.......................     7
</Table>

                                        ii
<PAGE>

<Table>
<Caption>
                                                                             PAGE
                                                                             ----
<S>            <C>                                                           <C>

SECTION 7      Stock Appreciation Rights...................................     7
  7.1          Grant of SARs...............................................     7
  7.2          SAR Agreement...............................................     8
  7.3          Expiration of SARs..........................................     8
  7.4          Payment of SAR Amount.......................................     8

SECTION 8      Performance Units and Performance Shares....................     8
  8.1          Grant of Performance Units/Shares...........................     8
  8.2          Value of Performance Units/Shares...........................     8
  8.3          Performance Objectives and Other Terms......................     8
  8.4          Earning of Performance Units/Shares.........................     9
  8.5          Form and Timing of Payment of Performance Units/Shares......     9
  8.6          Cancellation of Performance Units/Shares....................     9

SECTION 9      Nonemployee Director Options................................     9
  9.1          Granting of Options.........................................     9
  9.2          Terms of Options............................................     9

SECTION 10     Nonemployee Director Awards of Restricted Stock.............    10
  10.1         Granting of Restricted Stock................................    10
  10.2         Terms of Restricted Stock...................................    10

SECTION 11     Miscellaneous...............................................    11
  11.1         Deferrals...................................................    11
  11.2         No Effect on Employment or Service..........................    11
  11.3         Participation...............................................    11
  11.4         Indemnification.............................................    11
  11.5         Successors..................................................    11
  11.6         Limited Transferability of Awards...........................    11
  11.7         Beneficiary Designations....................................    11
  11.8         No Rights as Stockholder....................................    12

SECTION 12     Amendment, Termination, and Duration........................    12
  12.1         Amendment, Suspension, or Termination.......................    12
  12.2         Duration of the Plan........................................    12

SECTION 13     Tax Withholding.............................................    12
  13.1         Withholding Requirements....................................    12
  13.2         Withholding Arrangements....................................    12

SECTION 14     Legal Construction..........................................    12
  14.1         Gender and Number...........................................    12
  14.2         Severability................................................    12
  14.3         Requirements of Law.........................................    13
  14.4         Securities Law Compliance...................................    13
  14.5         Governing Law...............................................    13
  14.6         Captions....................................................    13
Execution..................................................................    13
</Table>

                                       iii
<PAGE>

                        LSI LOGIC STORAGE SYSTEMS, INC.
                           2004 EQUITY INCENTIVE PLAN

                                   SECTION 1

                             BACKGROUND AND PURPOSE

     1.1  Background and Effective Date.  The Plan permits the grant of
Nonqualified Stock Options, Incentive Stock Options, and Restricted Stock, SARs,
Performance Units, and Performance Shares. The Plan is effective as of February
12, 2004, subject to ratification by an affirmative vote of the holders of a
majority of the Shares.

     1.2  Purpose of the Plan.  The Plan is intended to attract, motivate, and
retain (a) employees of the Company and its Affiliates and (b) directors of the
Company who are employees of neither the Company nor of any affiliate. The Plan
also is designed to encourage stock ownership by Participants, thereby aligning
their interests with those of the Company's shareholders and to permit the
payment of compensation that qualifies as performance-based compensation under
section 162(m) of the Code.

                                   SECTION 2

                                  DEFINITIONS

     The following words and phrases shall have the following meanings unless a
different meaning is plainly required by the context:

          2.1  "1934 Act" means the Securities Exchange Act of 1934, as amended.
     Reference to a specific section of the 1934 Act or regulation thereunder
     shall include such section or regulation, any valid regulation promulgated
     under such section, and any comparable provision of any future legislation
     or regulation amending, supplementing or superseding such section or
     regulation.

          2.2  "Affiliate" means any corporation or any other entity (including,
     but not limited to, partnerships and joint ventures) controlling,
     controlled by, or under common control with the Company.

          2.3  "Affiliated SAR" means an SAR that is granted in connection with
     a related Option, and which automatically will be deemed to be exercised at
     the same time that the related Option is exercised.

          2.4  "Award" means, individually or collectively, a grant under the
     Plan of Nonqualified Stock Options, Incentive Stock Options, Restricted
     Stock, SARs, Performance Units, and/or Performance Shares.

          2.5  "Award Agreement" means the written agreement setting forth the
     terms and provisions applicable to each Award granted under the Plan.

          2.6  "Board" or "Board of Directors" means the Board of Directors of
     the Company.

          2.7  "Cash Flow" means the Company's or a business unit's sum of
     Profit After Tax plus depreciation and amortization less capital
     expenditures plus changes in working capital comprised of accounts
     receivable, inventories, other current assets, trade accounts payable,
     accrued expenses, product warranty, advance payments from customers and
     long-term accrued expenses, determined in accordance with generally
     acceptable accounting principles.

          2.8  "Code" means the Internal Revenue Code of 1986, as amended.
     Reference to a specific section of the Code or regulation thereunder shall
     include such section or regulation, any valid regulation promulgated under
     such section, and any comparable provision of any future legislation or
     regulation amending, supplementing or superseding such section or
     regulation.

          2.9  "Committee" means the committee appointed by the Board (pursuant
     to Section 3.1) to administer the Plan.

                                        1
<PAGE>

          2.10  "Company" means LSI Logic Storage Systems, Inc., a Delaware
     corporation, or any successor thereto.

          2.11  "Director" means any individual who is a member of the Board of
     Directors of the Company.

          2.12  "Disability" means a permanent and total disability determined
     in accordance with uniform and nondiscriminatory standards adopted by the
     Committee from time to time.

          2.13  "Earnings Per Share" means the Company's or a business unit's
     Profit After Tax, divided by a weighted average number of all classes of
     common shares outstanding and dilutive common equivalent shares deemed
     outstanding, determined in accordance with generally accepted accounting
     principles.

          2.14  "Employee" means any employee of the Company or of an Affiliate,
     whether such employee is so employed at the time the Plan is adopted or
     becomes so employed subsequent to the adoption of the Plan.

          2.15  "Exchange Program" means a program established by the Committee
     under which outstanding Awards are amended or surrendered or cancelled in
     exchange for (a) Awards with a different Exercise Price, (b) a different
     type of Award, (c) cash, or (d) a combination of (a), (b) and/or (c).

          2.16  "Exercise Price" means the price at which a Share may be
     purchased by a Participant pursuant to the exercise of an Option.

          2.17  "Fair Market Value" means the closing price per Share on the
     Nasdaq National Market on the relevant date, or if there were no sales on
     such date, the closing price per Share on the nearest day before the
     relevant date, as determined by the Committee. In the absence of an
     established market for the Shares, fair market value shall be determined in
     good faith by the Committee. Notwithstanding the preceding, for federal,
     state, and local income tax reporting purposes, fair market value shall be
     determined by the Committee (or its delegate) in accordance with uniform
     and nondiscriminatory standards adopted by it from time to time.

          2.18  "Fiscal Year" means the fiscal year of the Company.

          2.19  "Freestanding SAR" means a SAR that is granted independently of
     any Option.

          2.20  "Grant Date" means, with respect to an Award, the date that the
     Award was granted.

          2.21  "Incentive Stock Option" means an Option to purchase Shares that
     is designated as an Incentive Stock Option and is intended to meet the
     requirements of Section 422 of the Code.

          2.22  "Nonemployee Director" means a Director who is an employee of
     neither the Company nor of any Affiliate.

          2.23  "Nonqualified Stock Option" means an option to purchase Shares
     that is not intended to be an Incentive Stock Option.

          2.24  "Option" means an Incentive Stock Option or a Nonqualified Stock
     Option.

          2.25  "Participant" means an Employee or Nonemployee Director who has
     an outstanding Award.

          2.26  "Performance Goals" means the goal(s) (or combined goal(s))
     determined by the Committee (in its discretion) to be applicable to a
     Participant with respect to an Award. As determined by the Committee, the
     Performance Goals applicable to an Award may provide for a targeted level
     or levels of achievement using one or more of the following measures: (a)
     Cash Flow, (b) Earnings per Share, (c) Profit After Tax, and (d) Profit
     Before Tax, (e) Return on Capital, (f) Return on Equity, (g) Return on
     Sales, (h) Revenue, (i) Total Shareholder Return. The Performance Goals may
     differ from Participant to Participant and from Award to Award. Prior to
     the Determination Date, the Committee shall determine whether any
     significant element(s) shall be included in or excluded from the
     calculation of any Performance Goal with respect to any Participants.

          2.27  "Performance Share" means an Award granted to a Participant
     pursuant to Section 8.

                                        2
<PAGE>

          2.28  "Performance Unit" means an Award granted to a Participant
     pursuant to Section 8.

          2.29  "Period of Restriction" means the period during which the
     transfer of Shares of Restricted Stock are subject to restrictions and
     therefore, the Shares are subject to a substantial risk of forfeiture. As
     provided in Section 6, such restrictions may be based on the passage of
     time, the achievement of target levels of performance, or the occurrence of
     other events or conditions, as determined by the Committee, in its
     discretion; provided, however, that with respect to Awards granted pursuant
     to Section 10, the restrictions shall be based on the passage of time in
     accordance with Section 10.2.3.

          2.30  "Plan" means the LSI Logic Storage Systems, Inc. Corporation
     2004 Equity Incentive Plan, as set forth in this instrument and as
     hereafter amended from time to time.

          2.31  "Profit After Tax" means the Company's or a business unit's
     income after taxes, determined in accordance with generally accepted
     accounting principles.

          2.32  "Profit Before Tax" means the Company's or a business unit's
     income before taxes, determined in accordance with generally accepted
     accounting principles.

          2.33  "Restricted Stock" means an Award granted to a Participant
     pursuant to Section 6.

          2.34  "Retirement" means a Termination of Service occurring on or
     after the earlier of (a) age sixty-five (65), or (b) age fifty-five (55)
     and the completion of ten (10) years of service with the Company or an
     Affiliate.

          2.35  "Return on Capital" means the Company's or a business unit's
     Profit After Tax divided by Company's or business unit's, as applicable,
     average invested capital, determined in accordance with generally accepted
     accounting principles.

          2.36  "Return on Equity" means the percentage equal to the Company's
     Profit After Tax divided by average stockholder's equity, determined in
     accordance with generally accepted accounting principles.

          2.37  "Return on Sales" means the percentage equal to the Company's or
     a business unit's Profit After Tax, divided by the Company's or the
     business unit's, as applicable, Revenue, determined in accordance with
     generally accepted accounting principles.

          2.38  "Revenue" means the Company's or business unit's net sales,
     determined in accordance with generally accepted accounting principles.

          2.39  "Rule 16b-3" means Rule 16b-3 promulgated under the 1934 Act,
     and any future regulation amending, supplementing or superseding such
     regulation.

          2.40  "Section 16 Person" means a person who, with respect to the
     Shares, is subject to Section 16 of the 1934 Act.

          2.41  "Shares" means the shares of Class A common stock of the
     Company.

          2.42  "Stock Appreciation Right" or "SAR" means an Award, granted
     alone or in connection with a related Option, that pursuant to Section 7 is
     designated as an SAR.

          2.43  "Subsidiary" means any corporation in an unbroken chain of
     corporations beginning with the Company if each of the corporations other
     than the last corporation in the unbroken chain then owns stock possessing
     fifty percent (50%) or more of the total combined voting power of all
     classes of stock in one of the other corporations in such chain.

          2.44  "Tandem SAR" means an SAR that is granted in connection with a
     related Option, the exercise of which shall require forfeiture of the right
     to purchase an equal number of Shares under the related Option (and when a
     Share is purchased under the Option, the SAR shall be canceled to the same
     extent).

          2.45  "Termination of Service" means (a) in the case of an Employee, a
     cessation of the employee-employer relationship between the Employee and
     the Company or an Affiliate for any reason, including,

                                        3
<PAGE>

     but not by way of limitation, a termination by resignation, discharge,
     death, Disability, Retirement, or the disaffiliation of an Affiliate, but
     excluding any such termination where there is a simultaneous reemployment
     by the Company or an Affiliate; and (b) in the case of a Nonemployee
     Director, a cessation of the Director's service on the Board for any
     reason, including, but not by way of limitation, a termination by
     resignation, death, Disability, Retirement or non-reelection to the Board.

          2.46  "Total Shareholder Return" means the total return (change in
     share price plus reinvestment of any dividends) of a Share.

                                   SECTION 3

                                 ADMINISTRATION

     3.1  The Committee.  The Plan shall be administered by the Committee. The
Committee shall consist of not less than two (2) Directors who shall be
appointed from time to time by, and shall serve at the pleasure of, the Board of
Directors. The Committee shall be comprised solely of Directors who both are (a)
"non-employee directors" under Rule 16b-3, and (b) "outside directors" under
Section 162(m) of the Code.

     3.2  Authority of the Committee.  It shall be the duty of the Committee to
administer the Plan in accordance with the Plan's provisions. The Committee
shall have all powers and discretion necessary or appropriate to administer the
Plan and to control its operation, including, but not limited to, the power to
(a) determine which Employees (including Employees who are also Directors) shall
be granted Awards, (b) prescribe the terms and conditions of the Awards, (c)
interpret the Plan and the Awards, (d) adopt such procedures and subplans as are
necessary or appropriate to permit participation in the Plan by Employees and
Nonemployee Directors who are foreign nationals or employed outside of the
United States, (e) adopt rules for the administration, interpretation and
application of the Plan as are consistent therewith, (f) interpret, amend or
revoke any such rules, and (g) effect, at any time and from time to time, an
Exchange Program.

     3.3  Delegation by the Committee.  The Committee, in its sole discretion
and on such terms and conditions as it may provide, may delegate all or any part
of its authority and powers under the Plan to one or more Directors or officers
of the Company; provided, however, that the Committee may not delegate its
authority and powers (a) with respect to Section 16 Persons, or (b) in any way
which would jeopardize the Plan's qualification under Section 162(m) of the Code
or Rule 16b-3.

     3.4  Decisions Binding.  All determinations and decisions made by the
Committee, the Board, and any delegate of the Committee pursuant to the
provisions of the Plan shall be final, conclusive, and binding on all persons,
and shall be given the maximum deference permitted by law.

                                   SECTION 4

                           SHARES SUBJECT TO THE PLAN

     4.1  Number of Shares.  Subject to adjustment as provided in Section 4.3,
the total number of Shares available for grant under the Plan shall not exceed
7,500,000 Shares granted under the Plan may be either authorized but unissued
Shares or treasury Shares.

     4.2  Lapsed Awards.  If an Award is cancelled, terminates, expires, or
lapses for any reason (with the exception of the termination of a Tandem SAR
upon exercise of the related Option, or the termination of a related Option upon
exercise of the corresponding Tandem SAR), any Shares subject to such Award
again shall be available to be the subject of an Award, except as determined by
the Committee.

     4.3  Adjustments in Awards and Authorized Shares.  In the event that any
dividend or other distribution (whether in the form of cash, Shares, other
securities, or other property), recapitalization, stock split, reverse stock
split, reorganization, merger, consolidation, split-up, spin-off, combination,
repurchase, or exchange of Shares or other securities of the Company, or other
change in the corporate structure of the Company affecting the Shares such that
an adjustment is determined by the Committee (in its sole discretion) to be
appropriate in order to prevent dilution or enlargement of the benefits or
potential benefits

                                        4
<PAGE>

intended to be made available under the Plan, then the Committee shall, in such
manner as it may deem equitable, adjust the number and class of Shares that may
be delivered under the Plan, the number, class, and price of Shares subject to
outstanding Awards, and the numerical limits of Sections 5.1, 6.1, 7.1.1 and
8.1. Notwithstanding the preceding, the number of Shares subject to any Award
always shall be a whole number.

                                   SECTION 5
                                 STOCK OPTIONS

     5.1  Grant of Options.  Subject to the terms and provisions of the Plan,
Options may be granted to Employees at any time and from time to time as
determined by the Committee in its sole discretion. The Committee, in its sole
discretion, shall determine the number of Shares subject to each Option,
provided that during any Fiscal Year, no Participant shall be granted Options
covering more than 1,500,000 Shares. The Committee may grant Incentive Stock
Options, Nonqualified Stock Options, or a combination thereof.

     5.2  Award Agreement.  Each Option shall be evidenced by an Award Agreement
that shall specify the Exercise Price, the expiration date of the Option, the
number of Shares to which the Option pertains, any conditions to exercise of the
Option, and such other terms and conditions as the Committee, in its discretion,
shall determine. The Award Agreement shall also specify whether the Option is
intended to be an Incentive Stock Option or a Nonqualified Stock Option.

     5.3  Exercise Price.  Subject to the provisions of this Section 5.3, the
Exercise Price for each Option shall be determined by the Committee in its sole
discretion.

     5.3.1  Nonqualified Stock Options.  In the case of a Nonqualified Stock
Option, the Exercise Price shall be not less than one hundred percent (100%) of
the Fair Market Value of a Share on the Grant Date.

     5.3.2  Incentive Stock Options.  In the case of an Incentive Stock Option,
the Exercise Price shall be not less than one hundred percent (100%) of the Fair
Market Value of a Share on the Grant Date; provided, however, that if on the
Grant Date, the Employee (together with persons whose stock ownership is
attributed to the Employee pursuant to Section 424(d) of the Code) owns stock
possessing more than 10% of the total combined voting power of all classes of
stock of the Company or any of its Subsidiaries, the Exercise Price shall be not
less than one hundred and ten percent (110%) of the Fair Market Value of a Share
on the Grant Date.

     5.3.3  Substitute Options.  Notwithstanding the provisions of Sections
5.3.1 and 5.3.2, in the event that the Company or an Affiliate consummates a
transaction described in Section 424(a) of the Code (e.g., the acquisition of
property or stock from an unrelated corporation), persons who become Employees
or Nonemployee Directors on account of such transaction may be granted Options
in substitution for options granted by their former employer. If such substitute
Options are granted, the Committee, in its sole discretion and consistent with
Section 424(a) of the Code, may determine that such substitute Options shall
have an exercise price less than one hundred percent (100%) of the Fair Market
Value of the Shares on the Grant Date.

     5.4  Expiration of Options.

     5.4.1  Expiration Dates.  Each Option shall terminate no later than the
first to occur of the following events:

          (a) The date for termination of the Option set forth in the written
     Award Agreement; or

          (b) The expiration of ten years (10) from the Grant Date.

     5.4.2  Death of Participant.  Notwithstanding Section 5.4.1, if a
Participant dies prior to the expiration of his or her Options, the Committee,
in its discretion, may provide that his or her Options shall be exercisable for
up to one (1) year after the date of death.

     5.4.3  Committee Discretion.  Subject to the limits of Sections 5.4.1 and
5.4.2, the Committee, in its sole discretion, (a) shall provide in each Award
Agreement when each Option expires and becomes

                                        5
<PAGE>

unexercisable, and (b) may, after an Option is granted, extend the maximum term
of the Option (subject to Section 5.8.4 regarding Incentive Stock Options).

     5.5  Exercisability of Options.  Options granted under the Plan shall be
exercisable at such times and be subject to such restrictions and conditions as
the Committee shall determine in its sole discretion. After an Option is
granted, the Committee, in its sole discretion, may accelerate the
exercisability of the Option.

     5.6  Payment.  Options shall be exercised by the Participant's delivery of
a notice of exercise to the Corporate Secretary of the Company (or its
designee), setting forth the number of Shares with respect to which the Option
is to be exercised, accompanied by full payment for the Shares. The notice shall
be given in the form and manner specified by the Company from time to time.

     Upon the exercise of any Option, the Exercise Price shall be payable to the
Company in full in cash or its equivalent. The Committee, in its sole
discretion, also may permit exercise (a) by tendering previously acquired Shares
having an aggregate Fair Market Value at the time of exercise equal to the total
Exercise Price, or (b) by any other means which the Committee, in its sole
discretion, determines to both provide legal consideration for the Shares, and
to be consistent with the purposes of the Plan. As soon as practicable after
receipt of a written notification of exercise and full payment for the Shares
purchased, the Company shall deliver to the Participant (or the Participant's
designated broker), Share certificates (which may be in book entry form)
representing such Shares.

     5.7  Restrictions on Share Transferability.  The Committee may impose such
restrictions on any Shares acquired pursuant to the exercise of an Option as it
may deem advisable, including, but not limited to, restrictions related to
applicable federal securities laws, the requirements of any national securities
exchange or system upon which Shares are then listed or traded, or any blue sky
or state securities laws.

     5.8  Certain Additional Provisions for Incentive Stock Options.

     5.8.1  Exercisability.  The aggregate Fair Market Value (determined on the
Grant Date(s)) of the Shares with respect to which Incentive Stock Options are
exercisable for the first time by any Employee during any calendar year (under
all plans of the Company and its Subsidiaries) shall not exceed $100,000.

     5.8.2  Termination of Service.  No vested Incentive Stock Option may be
exercised more than three (3) months after the Participant's Termination of
Service for any reason other than Disability or death, unless (a) the
Participant dies during such three-month period, and (b) the Award Agreement or
the Committee permits later exercise. No Incentive Stock Option may be exercised
more than one (1) year after the Participant's Termination of Service on account
of Disability, unless (a) the Participant dies during such one-year period, and
(b) the Award Agreement or the Committee permit later exercise.

     5.8.3  Company and Subsidiaries Only.  Incentive Stock Options may be
granted only to persons who are employees of the Company or a Subsidiary on the
Grant Date.

     5.8.4  Expiration.  No Incentive Stock Option may be exercised after the
expiration of ten (10) years from the Grant Date; provided, however, that if the
Option is granted to an Employee who, together with persons whose stock
ownership is attributed to the Employee pursuant to Section 424(d) of the Code,
owns stock possessing more than 10% of the total combined voting power of all
classes of the stock of the Company or any of its Subsidiaries, the Option may
not be exercised after the expiration of five (5) years from the Grant Date.

                                   SECTION 6

                                RESTRICTED STOCK

     6.1  Grant of Restricted Stock.  Subject to the terms and provisions of the
Plan, the Committee, at any time and from time to time, may grant shares of
Restricted Stock to Employees in such amounts as the Committee, in its sole
discretion, shall determine. The Committee, in its sole discretion, shall
determine the number of Shares to be granted to each Participant as Restricted
Stock, provided that during any Fiscal Year, no Participant shall receive more
than 500,000 shares of Restricted Stock.

                                        6
<PAGE>

     6.2  Restricted Stock Agreement.  Each Award of Restricted Stock shall be
evidenced by an Award Agreement that shall specify the Period of Restriction,
the number of Shares granted, and such other terms and conditions as the
Committee, in its sole discretion, shall determine. Unless the Committee
determines otherwise, shares of Restricted Stock shall be held by the Company as
escrow agent until the restrictions on such Shares have lapsed.

     6.3  Transferability.  Except as provided in this Section 6, shares of
Restricted Stock may not be sold, transferred, pledged, assigned, or otherwise
alienated or hypothecated until the end of the applicable Period of Restriction.

     6.4  Other Restrictions.  The Committee, in its sole discretion, may impose
such other restrictions on shares of Restricted Stock as it may deem advisable
or appropriate, in accordance with this Section 6.4.

     6.4.1  General Restrictions.  The Committee may set restrictions based upon
the achievement of specific performance objectives (Company-wide, divisional, or
individual), applicable federal or state securities laws, or any other basis
determined by the Committee in its discretion.

     6.4.2  Section 162(m) Performance Restrictions.  For purposes of qualifying
grants of Restricted Stock as "performance-based compensation" under Section
162(m) of the Code, the Committee, in its discretion, may set restrictions based
upon the achievement of Performance Goals. The Performance Goals shall be set by
the Committee on or before the latest date permissible to enable the Restricted
Stock to qualify as "performance-based compensation" under Section 162(m) of the
Code. In granting Restricted Stock that is intended to qualify under Section
162(m) of the Code, the Committee shall follow any procedures determined by it
from time to time to be necessary or appropriate to ensure qualification of the
Restricted Stock under Section 162(m) of the Code (e.g., in determining the
Performance Goals).

     6.4.3  Legend on Certificates.  The Committee, in its discretion, may
legend the certificates representing Restricted Stock to give appropriate notice
of such restrictions.

     6.5  Removal of Restrictions.  Except as otherwise provided in this Section
6, Shares of Restricted Stock covered by each Restricted Stock grant made under
the Plan shall be released from escrow as soon as practicable after the last day
of the Period of Restriction. The Committee, in its discretion, may accelerate
the time at which any restrictions shall lapse or be removed. After the
restrictions have lapsed, the Participant shall be entitled to have any legend
or legends under Section 6.4.3 removed from his or her Share certificate, and
the Shares shall be freely transferable by the Participant.

     6.6  Voting Rights.  During the Period of Restriction, Participants holding
Shares of Restricted Stock granted hereunder may exercise full voting rights
with respect to those Shares, unless the Committee determines otherwise.

     6.7  Dividends and Other Distributions.  During the Period of Restriction,
Participants holding Shares of Restricted Stock shall be entitled to receive all
dividends and other distributions paid with respect to such Shares unless
otherwise provided in the Award Agreement. If any such dividends or
distributions are paid in Shares, the Shares shall be subject to the same
restrictions on transferability and forfeitability as the Shares of Restricted
Stock with respect to which they were paid.

     6.8  Return of Restricted Stock to Company.  On the date set forth in the
Award Agreement, the Restricted Stock for which restrictions have not lapsed
shall revert to the Company and again shall become available for grant under the
Plan.

                                   SECTION 7

                           STOCK APPRECIATION RIGHTS

     7.1  Grant of SARs.  Subject to the terms and conditions of the Plan, a SAR
may be granted to Employees at any time and from time to time as shall be
determined by the Committee, in its sole discretion. The Committee may grant
Affiliated SARs, Freestanding SARs, Tandem SARs, or any combination thereof.

                                        7
<PAGE>

     7.1.1  Number of Shares.  The Committee shall have complete discretion to
determine the number of SARs granted to any Participant, provided that during
any Fiscal Year, no Participant shall be granted SARs covering more than 500,000
Shares.

     7.1.2  Exercise Price and Other Terms.  The Committee, subject to the
provisions of the Plan, shall have complete discretion to determine the terms
and conditions of SARs granted under the Plan. However, the exercise price of an
SAR shall be not less than one hundred percent (100%) of the Fair Market Value
of a Share on the Grant Date.

     7.2  SAR Agreement.  Each SAR grant shall be evidenced by an Award
Agreement that shall specify the exercise price, the term of the SAR, the
conditions of exercise, and such other terms and conditions as the Committee, in
its sole discretion, shall determine.

     7.3  Expiration of SARs.  An SAR granted under the Plan shall expire upon
the date determined by the Committee, in its sole discretion, and set forth in
the Award Agreement. Notwithstanding the foregoing, the rules of Section 5.4
also shall apply to SARs.

     7.4  Payment of SAR Amount.  Upon exercise of an SAR, a Participant shall
be entitled to receive payment from the Company in an amount determined by
multiplying:

          (a) The difference between the Fair Market Value of a Share on the
     date of exercise over the exercise price; times

          (b) The number of Shares with respect to which the SAR is exercised.
     At the discretion of the Committee, the payment upon SAR exercise may be in
     cash, in Shares of equivalent value, or in some combination thereof.

                                   SECTION 8

                    PERFORMANCE UNITS AND PERFORMANCE SHARES

     8.1  Grant of Performance Units/Shares.  Performance Units and Performance
Shares may be granted to Employees at any time and from time to time, as shall
be determined by the Committee, in its sole discretion. The Committee shall have
complete discretion in determining the number of Performance Units and
Performance Shares granted to each Participant provided that during any Fiscal
Year, (a) no Participant shall receive Performance Units having an initial value
greater than $1,000,000, and (b) no Participant shall receive more than 500,000
Performance Shares.

     8.2  Value of Performance Units/Shares.  Each Performance Unit shall have
an initial value that is established by the Committee on or before the Grant
Date. Each Performance Share shall have an initial value equal to the Fair
Market Value of a Share on the Grant Date.

     8.3  Performance Objectives and Other Terms.  The Committee shall set
performance objectives in its discretion which, depending on the extent to which
they are met, will determine the number or value of Performance Units/Shares
that will be paid out to the Participants. The time period during which the
performance objectives must be met shall be called the "Performance Period."
Each Award of Performance Units/Shares shall be evidenced by an Award Agreement
that shall specify the Performance Period, and such other terms and conditions
as the Committee, in its sole discretion, shall determine.

     8.3.1  General Performance Objectives.  The Committee may set performance
objectives based upon the achievement of Company-wide, divisional, or individual
goals, applicable federal or state securities laws, or any other basis
determined by the Committee in its discretion.

     8.3.2  Section 162(m) Performance Objectives.  For purposes of qualifying
grants of Performance Units/Shares as "performance-based compensation" under
Section 162(m) of the Code, the Committee, in its discretion, may determine that
the performance objectives applicable to Performance Units/Shares shall be based
on the achievement of Performance Goals. The Performance Goals shall be set by
the Committee on or before the latest date permissible to enable the Performance
Units/Shares to qualify as "performance-based

                                        8
<PAGE>

compensation" under Section 162(m) of the Code. In granting Performance
Units/Shares which are intended to qualify under Section 162(m) of the Code, the
Committee shall follow any procedures determined by it from time to time to be
necessary or appropriate to ensure qualification of the Performance Units/Shares
under Section 162(m) of the Code (e.g., in determining the Performance Goals).

     8.4  Earning of Performance Units/Shares.  After the applicable Performance
Period has ended, the holder of Performance Units/Shares shall be entitled to
receive a payout of the number of Performance Units/Shares earned by the
Participant over the Performance Period, to be determined as a function of the
extent to which the corresponding performance objectives have been achieved.
After the grant of a Performance Unit/Share, the Committee, in its sole
discretion, may reduce or waive any performance objectives for such Performance
Unit/Share.

     8.5  Form and Timing of Payment of Performance Units/Shares.  Payment of
earned Performance Units/Shares shall be made as soon as practicable after the
expiration of the applicable Performance Period. The Committee, in its sole
discretion, may pay earned Performance Units/Shares in the form of cash, in
Shares (which have an aggregate Fair Market Value equal to the value of the
earned Performance Units/ Shares at the close of the applicable Performance
Period) or in a combination thereof.

     8.6  Cancellation of Performance Units/Shares.  On the date set forth in
the Award Agreement, all unearned or unvested Performance Units/Shares shall be
forfeited to the Company, and again shall be available for grant under the Plan.

                                   SECTION 9

                          NONEMPLOYEE DIRECTOR OPTIONS

     The provisions of this Section 9 are applicable only to Options granted to
Nonemployee Directors.

     9.1  Granting of Options.

     9.1.1  Initial Grants.  Each Nonemployee Director who first becomes a
Nonemployee Director on or after the effective date of this Plan, automatically
shall receive, as of the date that the individual first is appointed or elected
as a Nonemployee Director, an Option to purchase 25,000 Shares.

     9.1.2  Ongoing Grants.  Each Nonemployee Director who both (a) is a
Nonemployee Director on the last business day of a Fiscal Year, and (b) has
served as a Nonemployee Director for the entire Fiscal Year which includes such
last business day, automatically shall receive, as of such last business day
only, an Option to purchase 15,000 Shares.

     9.2  Terms of Options.

     9.2.1  Option Agreement.  Each Option granted pursuant to this Section 9
shall be evidenced by a written Award Agreement between the Participant and the
Company.

     9.2.2  Exercise Price.  The Exercise Price for the Shares subject to each
Option granted pursuant to this Section 9 shall be 100% of the Fair Market Value
of such Shares on the Grant Date.

     9.2.3  Exercisability.

          (a) Each Option granted pursuant to Section 9.1.1 shall become
     exercisable as to 100% of the Shares on the first anniversary of the Grant
     Date.

          (b) Each Option granted pursuant to Section 9.1.2 shall become
     exercisable as to 100% of the Shares on the first anniversary of the Grant
     Date.

Notwithstanding the preceding, once a Participant ceases to be a Director, his
or her Options which are not then exercisable shall never become exercisable and
shall be immediately forfeited, except to the limited extent provided in the
Section 9.2.5. Shares subject to forfeited Options shall revert to the Company
and again shall become available for grant under the Plan.

                                        9
<PAGE>

     9.2.4  Expiration of Options.  Each Option granted pursuant to this Section
9 shall terminate upon the first to occur of the following events:

          (a) The expiration of ten (10) years from the Grant Date; or

          (b) The expiration of seven (7) months from the date of the
     Participant's Termination of Service for any reason other than the
     Participant's death, Disability or Retirement; or

          (c) The expiration of one (1) year from the date of the Participant's
     Termination of Service by reason of Disability or Retirement.

     9.2.5  Death of Participant.  Notwithstanding the provisions of Section
9.2.4, if a Participant dies prior to the expiration of his or her Options in
accordance with Section 9.2.4, then (a) one hundred percent (100%) of the Shares
covered by his or her Options shall immediately become one hundred percent
(100%) exercisable, and (b) his or her Options shall terminate one (1) year
after the date of his or her death.

     9.2.6  Not Incentive Stock Options.  Options granted pursuant to this
Section 9 shall not be designated as Incentive Stock Options.

     9.2.7  Other Terms.  All provisions of the Plan not inconsistent with this
Section 9 shall apply to Options granted to Nonemployee Directors.

                                   SECTION 10

                NONEMPLOYEE DIRECTOR AWARDS OF RESTRICTED STOCK

     The provisions of this Section 10 are applicable only to Restricted Stock
granted to Nonemployee Directors.

     10.1  Granting of Restricted Stock.  Each Nonemployee Director who first
becomes a Nonemployee Director on or after the effective date of this Plan,
automatically shall receive, as of the date that the individual first is
appointed or elected as a Nonemployee Director, 2,500 Shares of Restricted
Stock.

     10.2  Terms of Restricted Stock.

     10.2.1  Option Agreement.  Each Award of Restricted Stock granted pursuant
to this Section 10 shall be evidenced by a written Award Agreement between the
Participant and the Company.

     10.2.2  Escrow.  Shares of Restricted Stock granted pursuant to this
Section 10 shall be held by the Company as escrow agent until the end of the
Period of Restriction applicable to such Shares.

     10.2.3  End of Period of Restriction.  The Period of Restriction for each
Award of Restricted Stock granted pursuant to Section 10.1 shall end as to 100%
of the Shares on the first anniversary of the Grant Date and all such Shares
shall be fully vested on such date. Notwithstanding the preceding, once a
Participant ceases to be a Director, his or her Shares of Restricted Stock as to
which the Period of Restriction has not ended shall be immediately forfeited,
except to the limited extent provided in the Section 10.2.5.

     10.2.4  Death of Participant.  If a Participant dies prior to the end of
the Period of Restriction on his or her Award of Restricted Stock in accordance
with Section 10.2.3, then the Period of Restriction applicable to such Award
shall immediately end and one hundred percent (100%) of the Shares covered by
his or her Award of Restricted Stock shall immediately become one hundred
percent (100%) vested.

     10.2.5  Other Terms.  All provisions of the Plan not inconsistent with this
Section 10 shall apply to Awards of Restricted Stock granted to Nonemployee
Directors.

                                        10
<PAGE>

                                   SECTION 11

                                 MISCELLANEOUS

     11.1  Deferrals.  The Committee, in its sole discretion, may permit a
Participant to defer receipt of the payment of cash or the delivery of Shares
that would otherwise be due to such Participant under an Award. Any such
deferral elections shall be subject to such rules and procedures as shall be
determined by the Committee in its sole discretion.

     11.2  No Effect on Employment or Service.  Nothing in the Plan shall
interfere with or limit in any way the right of the Company to terminate any
Participant's employment or service at any time, with or without cause. For
purposes of the Plan, transfer of employment of a Participant between the
Company and any one of its Affiliates (or between Affiliates) shall not be
deemed a Termination of Service. Employment with the Company and its Affiliates
is on an at-will basis only.

     11.3  Participation.  No Employee shall have the right to be selected to
receive an Award under this Plan, or, having been so selected, to be selected to
receive a future Award.

     11.4  Indemnification.  Each person who is or shall have been a member of
the Committee, or of the Board, shall be indemnified and held harmless by the
Company against and from (a) any loss, cost, liability, or expense that may be
imposed upon or reasonably incurred by him or her in connection with or
resulting from any claim, action, suit, or proceeding to which he or she may be
a party or in which he or she may be involved by reason of any action taken or
failure to act under the Plan or any Award Agreement, and (b) from any and all
amounts paid by him or her in settlement thereof, with the Company's approval,
or paid by him or her in satisfaction of any judgment in any such claim, action,
suit, or proceeding against him or her, provided he or she shall give the
Company an opportunity, at its own expense, to handle and defend the same before
he or she undertakes to handle and defend it on his or her own behalf. The
foregoing right of indemnification shall not be exclusive of any other rights of
indemnification to which such persons may be entitled under the Company's
Certificate of Incorporation or Bylaws, by contract, as a matter of law, or
otherwise, or under any power that the Company may have to indemnify them or
hold them harmless.

     11.5  Successors.  All obligations of the Company under the Plan, with
respect to Awards granted hereunder, shall be binding on any successor to the
Company, whether the existence of such successor is the result of a direct or
indirect purchase, merger, consolidation, or otherwise, of all or substantially
all of the business or assets of the Company.

     11.6  Limited Transferability of Awards.  No Award granted under the Plan
may be sold, transferred, pledged, assigned, or otherwise alienated or
hypothecated, other than by will, by the laws of descent and distribution. All
rights with respect to an Award granted to a Participant shall be available
during his or her lifetime only to the Participant. Notwithstanding the
foregoing, after the Plan becomes effective, the Committee (in its sole
discretion) may determine that a Participant may, in a manner specified by the
Committee, (a) transfer a Nonqualified Stock Option to a Participant's spouse,
former spouse or dependent pursuant to a court-approved domestic relations order
which relates to the provision of child support, alimony payments or marital
property rights, and (b) transfer a Nonqualified Stock Option by bona fide gift
and not for any consideration, to (i) a member or members of the Participant's
immediate family, (ii) a trust established for the exclusive benefit of the
Participant and/or member(s) of the Participant's immediate family, (iii) a
partnership, limited liability company of other entity whose only partners or
members are the Participant and/or member(s) of the Participant's immediate
family, or (iv) a foundation in which the Participant an/or member(s) of the
Participant's immediate family control the management of the foundation's
assets. The transferability provisions provided in the preceding sentence shall
be effective only if expressly determined by the Committee after the effective
date of the Plan.

     11.7  Beneficiary Designations.  Notwithstanding any contrary provisions of
Section 11.6, after the Plan becomes effective, the Committee (in its sole
discretion) may determine that a Participant under the Plan may name a
beneficiary or beneficiaries to whom any vested but unpaid Award shall be paid
in the event of the Participant's death. Each such designation shall revoke all
prior designations by the Participant and shall be

                                        11
<PAGE>

effective only if given in a form and manner acceptable to the Committee. In the
absence of any such designation, any vested benefits remaining unpaid at the
Participant's death shall be paid to the Participant's estate and, subject to
the terms of the Plan and of the applicable Award Agreement, any unexercised
vested Award may be exercised by the administrator or executor of the
Participant's estate. The provisions of this Section 11.7 shall be effective
only if expressly determined by the Committee after the effective date of the
Plan.

     11.8  No Rights as Stockholder.  Except to the limited extent provided in
Sections 6.6 and 6.7, no Participant (nor any beneficiary) shall have any of the
rights or privileges of a stockholder of the Company with respect to any Shares
issuable pursuant to an Award (or exercise thereof), unless and until
certificates representing such Shares shall have been issued, recorded on the
records of the Company or its transfer agents or registrars, and delivered to
the Participant (or beneficiary).

                                   SECTION 12

                      AMENDMENT, TERMINATION, AND DURATION

     12.1  Amendment, Suspension, or Termination.  The Board, in its sole
discretion, may amend, suspend or terminate the Plan, or any part thereof, at
any time and for any reason. The amendment, suspension, or termination of the
Plan shall not, without the consent of the Participant, alter or impair any
rights or obligations under any Award theretofore granted to such Participant.
No Award may be granted during any period of suspension or after termination of
the Plan.

     12.2  Duration of the Plan.  The Plan shall be effective as of February 12,
2004, and subject to Section 12.1 (regarding the Board's right to amend or
terminate the Plan), shall remain in effect thereafter. However, without further
stockholder approval, no Incentive Stock Option may be granted under the Plan
after February 12, 2014.

                                   SECTION 13

                                TAX WITHHOLDING

     13.1  Withholding Requirements.  Prior to the delivery of any Shares or
cash pursuant to an Award (or exercise thereof), the Company shall have the
power and the right to deduct or withhold, or require a Participant to remit to
the Company, an amount sufficient to satisfy federal, state, and local taxes
(including the Participant's FICA obligation) required to be withheld with
respect to such Award (or exercise thereof).

     13.2  Withholding Arrangements.  The Committee, in its sole discretion and
pursuant to such procedures as it may specify from time to time, may permit a
Participant to satisfy such tax withholding obligation, in whole or in part by
(a) electing to have the Company withhold otherwise deliverable Shares, or (b)
delivering to the Company already-owned Shares having a Fair Market Value equal
to the minimum amount required to be withheld.

                                   SECTION 14

                               LEGAL CONSTRUCTION

     14.1  Gender and Number.  Except where otherwise indicated by the context,
any masculine term used herein also shall include the feminine; the plural shall
include the singular and the singular shall include the plural.

     14.2  Severability.  In the event any provision of the Plan shall be held
illegal or invalid for any reason, the illegality or invalidity shall not affect
the remaining parts of the Plan, and the Plan shall be construed and enforced as
if the illegal or invalid provision had not been included.

                                        12
<PAGE>

     14.3  Requirements of Law.  The granting of Awards and the issuance of
Shares under the Plan shall be subject to all applicable laws, rules, and
regulations, and to such approvals by any governmental agencies or national
securities exchanges as may be required.

     14.4  Securities Law Compliance.  With respect to Section 16 Persons,
transactions under this Plan are intended to comply with all applicable
conditions of Rule 16b-3. To the extent any provision of the Plan, Award
Agreement or action by the Committee fails to so comply, it shall be deemed null
and void, to the extent permitted by law and deemed advisable by the Committee.

     14.5  Governing Law.  The Plan and all Award Agreements shall be construed
in accordance with and governed by the laws of the State of California, other
than its conflicts of laws provisions.

     14.6  Captions.  Captions are provided herein for convenience only, and
shall not serve as a basis for interpretation or construction of the Plan.

                                   EXECUTION

     IN WITNESS WHEREOF, the Company, by its duly authorized officer, has
executed this restated Plan on the date indicated below.

                                          LSI LOGIC STORAGE SYSTEMS, INC.

                                          By
                                            ------------------------------------
                                            Title:

Dated:           , 2004

                                        13
<PAGE>

                        LSI LOGIC STORAGE SYSTEMS, INC.
                           2004 EQUITY INCENTIVE PLAN
                      NONQUALIFIED STOCK OPTION AGREEMENT

     LSI Logic Storage Systems, Inc. (the "Company") hereby grants you (the
"Employee"), a nonqualified stock option under the Company's 2004 Equity
Incentive Plan (the "Plan"), to purchase shares of common stock of the Company
("Shares") effective as of the date (the "Grant Date") indicated on the Notice
of Grant of Stock Options (the "Notice of Grant") to which this agreement is
attached and which are collectively referred to as the "Agreement". In general,
the latest date this option will expire is the expiration date indicated on the
Notice of Grant (the "Expiration Date"). However, as provided in this Agreement,
this option may expire earlier than the Expiration Date. Subject to the
provisions of the Notice of Grant, this Agreement and of the Plan, the principal
features of this option are as follows:

                                   IMPORTANT:

     Your signature to the Notice of Grant indicates your agreement and
understanding that this grant is subject to all of the terms and conditions
contained in the Notice of Grant, this Agreement and the Plan. For example,
important additional information on vesting and forfeiture of the Shares covered
by this grant is contained in the Notice of Grant. PLEASE BE SURE TO READ ALL OF
THE NOTICE OF GRANT, WHICH CONTAINS CERTAIN SPECIFIC TERMS AND CONDITIONS OF
THIS OPTION.

               TERMS AND CONDITIONS OF NONQUALIFIED STOCK OPTION

     1.  Grant of Option.  The Company hereby grants to the Employee under the
Plan, as a separate incentive in connection with his or her employment and not
in lieu of any salary or other compensation for his or her services, a
nonqualified stock option to purchase, on the terms and conditions set forth in
this Agreement and the Plan, all or any part of an aggregate of the number of
Shares listed in the Notice of Grant.

     2.  Exercise Price.  The purchase price per Share for this option (the
"Exercise Price") shall be the option price listed in the Notice of Grant.

     3.  Vesting Schedule.  Except as otherwise provided in Paragraph 14 of this
Agreement, the right to exercise this option will vest as to twenty-five percent
(25%) of the Shares subject to the option on the first anniversary date of the
Vesting Commencement Date, and as to an additional 25% on each subsequent
anniversary date of the Vesting Commencement Date thereafter, until the right to
exercise this option shall have vested with respect to one hundred percent
(100%) of such Shares. Shares scheduled to vest on any such date actually will
vest only if the Employee has not incurred a Termination of Service prior to
such date.

     4.  Termination of Option.  In the event of the Employee's Termination of
Service for any reason other than Disability or death, the Employee may, within
three (3) months after the date of such Termination of Service, or prior to the
Expiration Date, whichever shall first occur, exercise any then vested but
unexercised portion of this option. In the event of the Employee's Termination
of Service due to Disability, the Employee may, within one (1) year after the
date of Termination of Service due to Disability, or prior to the Expiration
Date, whichever shall first occur, exercise any then vested but unexercised
portion of this option. In addition, this option may terminate in accordance
with Paragraph 13.

     5.  Death of Employee.  In the event that the Employee dies while in the
employ of the Company and/or an Affiliate or during the three (3) month or one
(1) year periods referred to in Paragraph 4 above, the Employee's designated
beneficiary, or if no beneficiary survives the Employee, the administrator or
executor of the Employee's estate (the "Transferee"), may, within one (1) year
after the date of death, exercise any unexercised portion of the option that was
vested prior to the Employee's Termination of Service. Any such Transferee must
furnish the Company (a) written notice of his or her status as a Transferee, (b)
evidence satisfactory to the Company to establish the validity of the transfer
of this option and compliance with any laws or regulations pertaining to such
transfer, and (c) written acceptance of the terms and conditions of this option
as set forth in this Agreement.

                                        1
<PAGE>

     6.  Persons Eligible to Exercise Option.  Except as provided in Paragraph 5
above or as otherwise determined by the Committee in its discretion, this option
shall be exercisable during the Employee's lifetime only by the Employee.

     7.  Option is Not Transferable.  Except as otherwise expressly provided
herein, this option and the rights and privileges conferred hereby may not be
transferred, pledged, assigned or otherwise hypothecated in any way (whether by
operation of law or otherwise) and shall not be subject to sale under execution,
attachment or similar process. Upon any attempt to transfer, pledge, assign,
hypothecate or otherwise dispose of this option, or of any right or privilege
conferred hereby, or upon any attempted sale under any execution, attachment or
similar process, this option and the rights and privileges conferred hereby
immediately shall become null and void.

     8.  Exercise of Option.  This option may be exercised by the person then
entitled to do so as to any Shares which may then be purchased (a) by giving
notice of exercise by way of such form, time, place and/or manner as the Company
may designate, (b) providing full payment of the Exercise Price (and the amount
of any income tax the Company determines is required to be withheld by reason of
the exercise of this option or as is otherwise required under Paragraph 10
below), and (c) giving satisfactory assurances in the form or manner requested
by the Company that the shares to be purchased upon the exercise of this option
are being purchased for investment and not with a view to the distribution
thereof. Notwithstanding any contrary provision of this Agreement, if the
expiration date of this option falls on a Saturday, Sunday or California
holiday, the Employee may exercise any then vested but unexercised portion of
this option at any time prior to the close of business on the first business day
following that Saturday, Sunday or California holiday. In addition, if the
option is to be exercised through a stock broker-assisted transaction, the
option must be exercised while the applicable stock market is open for trading
and before the option otherwise expires.

     9.  Conditions to Exercise.  Except as provided in Paragraph 8 above or as
otherwise required as a matter of law, and as so specified by the Company at any
time, the Exercise Price for this option may be paid in one (1) (or a
combination of two (2) or more) of the following forms:

          (a) Personal check, a cashier's check or a money order.

          (b) Irrevocable directions to a securities broker approved by the
     Company to sell all or part of the option shares and to deliver to the
     Company from the sale proceeds an amount sufficient to pay the Exercise
     Price and any required withholding taxes. (The balance of the sale
     proceeds, if any, will be delivered to Employee.)

          (c) Irrevocable directions to a securities broker or lender approved
     by the Company to pledge option shares as security for a loan and to
     deliver to the Company from the loan proceeds an amount sufficient to pay
     the Exercise Price and any required withholding taxes.

     10.  Tax Withholding and Payment Obligations.  The Company will assess its
requirements regarding tax, social insurance and any other payroll tax
withholding and reporting in connection with this option, including the grant,
vesting or exercise of this option or sale of shares acquired pursuant to the
exercise of this option ("tax-related items"). These requirements may change
from time to time as laws or interpretations change. Regardless of the Company's
actions in this regard, the Employee hereby acknowledges and agrees that the
ultimate liability for any and all tax-related items is and remains his or her
responsibility and liability and that the Company (1) makes no representations
or undertaking regarding treatment of any tax-related items in connection with
any aspect of this option grant, including the grant, vesting or exercise of
this option and the subsequent sale of shares acquired pursuant to the exercise
of this option; and (2) does not commit to structure the terms of the grant or
any aspect of this option to reduce or eliminate the Employee's liability
regarding tax-related items. In the event the Company determines that it and/or
an Affiliate must withhold or collect any tax-related items as a result of the
Employee's participation in the Plan, the Employee agrees as a condition of the
grant of this option to make arrangements satisfactory to the Company to enable
it to satisfy all withholding and/or collection requirements. The Employee
authorizes the Company and/or an Affiliate to withhold all applicable
withholding taxes from the Employee's wages. Furthermore, the Employee agrees to
pay the Company and/or an Affiliate any amount of taxes the Company and/or an
Affiliate may be required to

                                        2
<PAGE>

withhold or collect as a result of the Employee's participation in the Plan that
cannot be satisfied by deduction from the Employee's wages or other cash
compensation paid to the Employee by the Company and/or an Affiliate. The
Employee acknowledges that he or she may not exercise this option unless the tax
withholding and/or collection obligations of the Company and/or any Affiliate
are satisfied.

     11.  Suspension of Exercisability.  If at any time the Company shall
determine, in its discretion, that the listing, registration or qualification of
the Shares upon any securities exchange or under any state or federal law, or
the consent or approval of any governmental regulatory authority, is necessary
or desirable as a condition of the purchase of Shares hereunder, this option may
not be exercised, in whole or in part, unless and until such listing,
registration, qualification, consent or approval shall have been effected or
obtained free of any conditions not acceptable to the Company. The Company shall
make reasonable efforts to meet the requirements of any such state or federal
law or securities exchange and to obtain any such consent or approval of any
such governmental authority.

     12.  Lock-Up Period.  The Employee shall not offer, pledge, sell, contract
to sell, sell any option or contract to purchase, purchase any option or
contract to sell, grant any option, right or warrant to purchase, lend, or
otherwise transfer or dispose of, directly or indirectly, any Shares (or other
securities) of the Company or enter into any swap, hedging or other arrangement
that transfers to another, in whole or in part, any of the economic consequences
of ownership of any Shares (or other securities) of the Company held by the
Employee (other than those included in the registration) for a period specified
by the representative of the underwriters of the Shares (or other securities) of
the Company not to exceed one hundred eighty (180) days following the effective
date of a registration statement of the Company filed under the Securities Act
of 1933, as amended (the "Securities Act"). The Employee shall execute and
deliver such other agreements as may be reasonably requested by the Company or
the underwriter which are consistent with the foregoing or which are necessary
to give further effect thereto. In addition, if requested by the Company or the
representative of the underwriters of the Shares (or other securities) of the
Company, the Employee shall provide, within ten (10) days of such request, such
information as may be required by the Company or such representative in
connection with the completion of any public offering of the Company's
securities pursuant to a registration statement filed under the Securities Act.
The obligations described in this Section shall not apply to a registration
relating solely to employee benefit plans on Form S-1 or Form S-8 or similar
forms that may be promulgated in the future, or a registration relating solely
to a Commission Rule 145 transaction on Form S-4 or similar forms that may be
promulgated in the future. The Company may impose stop-transfer instructions
with respect to the shares of Common Stock (or other securities) subject to the
foregoing restriction until the end of said one hundred eighty (180) day period.
Any transferee of this option also shall be bound by this Paragraph 12. The
certificate evidencing the Shares will be imprinted with any legend the Company,
in its discretion, deems appropriate to indicate the restrictions set forth in
this Paragraph 12.

     13.  No Initial Public Offering.  If at any time the Committee shall
determine, in its discretion, that an initial listing or registration of any
Shares upon any securities exchange or under federal law is not likely to occur,
the Committee may, in its discretion, determine that this option shall be
converted to an option to purchase shares of common stock of LSI Logic
Corporation by such means as the Committee deems appropriate. Unless the
Committee determines otherwise, the outstanding option will be converted to an
option to purchase shares of common stock of LSI Logic Corporation as follows:

          (a) The option to purchase shares of common stock of LSI Logic
     Corporation shall be exercisable for the number of Shares subject to the
     then outstanding portion of this option multiplied by the "Conversion
     Ratio" (as defined below), with the resulting number of shares rounded down
     to the nearest whole share; and

          (b) The per share exercise price of the option to purchase shares of
     common stock of LSI Logic Corporation shall be equal to the quotient of the
     per Share exercise price of this option divided by the Conversion Ratio,
     rounded up to the nearest whole cent.

     For purposes of this Agreement, "Conversion Ratio" means the Fair Market
Value of a Share immediately prior to the date the option is being converted
divided by the fair market value of a share of LSI Logic Corporation common
stock at the time of the conversion.
                                        3
<PAGE>

     14.  Change in Control.  In the event of a Change in Control, this option
shall be subject to the definitive agreement governing such Change in Control.
Such agreement, without the Employee's consent and notwithstanding any provision
to the contrary in this Agreement or the Plan, may provide for: (a) the
assumption of this option by the surviving corporation or its parent; (b) the
substitution by the surviving corporation or its parent of options with
substantially the same terms as this option; (c) the substitution by the
surviving corporation or its parent of other awards having a value at least
equal to the value as this option; (d) the conversion of this option into an
option to purchase the consideration received by the stockholders of the Company
in the Change in Control; (e) the termination of this option after the Company
shall have provided the Employee with the ability to exercise this option, to
the extent then exercisable, for a period of fifteen (15) days or less before
the consummation of the Change in Control; or (f) the cancellation of this
option after payment to the Employee of an amount in cash or cash equivalents
equal to (A) the fair market value of the Shares subject to this option at the
time of the Change in Control minus (B) the Exercise Price of the Shares subject
to this option at the time of the Change in Control. The Committee may, in its
sole discretion, accelerate the exercisability and vesting of this option in
connection with any of the foregoing alternatives. For purposes of this
Agreement, "Change in Control" means the occurrence of any of the following
events: (a) any "person" (as such term is used in Sections 13(d) and 14(d) of
the 1934 Act) becomes the "beneficial owner" (as defined in Rule 13d-3 of the
1934 Act), directly or indirectly, of securities of the Company representing
fifty percent (50%) or more of the total voting power represented by the
Company's then outstanding voting securities; (b) the consummation of the sale
or disposition by the Company of all or substantially all of the Company's
assets; (c) a change in the composition of the Board occurring within a two-year
period, as a result of which fewer than a majority of the directors are
Incumbent Directors; (d) the approval by the shareholders of the Company, or if
shareholder approval is not required, by the Board, of a plan of complete
liquidation of the Company; or (e) the consummation of a merger or consolidation
of the Company with any other corporation, other than a merger or consolidation
which would result in the voting securities of the Company outstanding
immediately prior thereto continuing to represent (either by remaining
outstanding or by being converted into voting securities of the surviving entity
or its parent) at least fifty percent (50%) of the total voting power
represented by the voting securities of the Company or such surviving entity or
its parent outstanding immediately after such merger or consolidation.
Notwithstanding any provision to the contrary herein, a Change in Control shall
not include the registration of any class of the Company's securities pursuant
to Section 12(g) of the Securities Exchange Act of 1934, as amended, nor any
event or series of events through which LSI Logic Corporation ceases to own a
majority of the total voting power represented by the voting securities of the
Company through a sale of Company securities to the public. "Incumbent
Directors" means directors who either (A) are Directors as of the effective date
of the Plan, or (B) are elected, or nominated for election, to the Board with
the affirmative votes of at least a majority of the Directors at the time of
such election or nomination (but will not include an individual whose election
or nomination is in connection with an actual or threatened proxy contest
relating to the election of directors to the Company).

     15.  No Rights of Stockholder.  Neither the Employee (nor any transferee)
shall be or have any of the rights or privileges of a stockholder of the Company
in respect of any of the Shares issuable pursuant to the exercise of this
option, unless and until certificates representing such Shares shall have been
issued, recorded on the records of the Company or its transfer agents or
registrars, and delivered to the Employee (or transferee).

     16.  No Effect on Employment.  The Employee's employment with the Company
and its Affiliates is on an at-will basis only, subject to the provisions of
applicable law. Accordingly, subject to any separate, written, express
employment contract with the Employee, nothing in this Agreement or the Plan
shall confer upon the Employee any right to continue to be employed by the
Company or any Affiliate or shall interfere with or restrict in any way the
rights of the Company or the Affiliate, which are hereby expressly reserved, to
terminate the employment of the Employee at any time for any reason whatsoever,
with or without good cause. Such reservation of rights can be modified only in
an express written contract executed by a duly authorized officer of the Company
or the Affiliate employing the Employee. For purposes of this Agreement, the
transfer of employment of the Employee between the Company and any one of its
Affiliates (or between Affiliates) shall not be deemed a Termination of Service.
In addition, a leave of absence or an interruption in
                                        4
<PAGE>

service (including an interruption during military service) authorized or
acknowledged by the Company, or the Affiliate employing the Employee, as the
case may be, shall not be deemed a Termination of Service for the purposes of
this Agreement.

     17.  Address for Notices.  Any notice to be given to the Company under the
terms of this Agreement shall be addressed to the Company, in care of its
General Counsel, at LSI Logic Storage Systems, Inc.1621 Barber Lane, Milpitas,
California 95035, or at such other address as the Company may hereafter
designate in writing.

     18.  Other Benefits.  Except as provided below, nothing contained in this
Agreement shall affect the Employee's right to participate in and receive
benefits under and in accordance with the then current provisions of any
pension, insurance or other employee welfare plan or program of the Company or
any Affiliate. Notwithstanding any contrary provision of this Agreement, in the
event that the Employee receives a hardship withdrawal from his or her pre-tax
account under the Company's 401(k) Plan (the "401(k) Plan"), this option may not
be exercised during the six (6) month period following the receipt of such
withdrawal, unless the Company determines that such exercise (or a particular
manner of exercise) would not adversely affect the continued tax qualification
of the 401(k) Plan.

     19.  Maximum Term of Option.  Notwithstanding any other provision of this
Agreement, this option is not exercisable after the Expiration Date.

     20.  Binding Agreement.  Subject to the limitation on the transferability
of this option contained herein, this Agreement shall be binding upon and inure
to the benefit of the heirs, legatees, legal representatives, successors and
assigns of the parties hereto.

     21.  Plan Governs.  This Agreement is subject to all of the terms and
provisions of the Plan. In the event of a conflict between one or more
provisions of this Agreement and one or more provisions of the Plan, the
provisions of the Plan shall govern. Capitalized terms and phrases used and not
defined in this Agreement shall have the meaning set forth in the Plan. This
option is not an incentive stock option as defined in Section 422 of the
Internal Revenue Code. The Company may, in its discretion; issue newly issued
shares or treasury shares pursuant to this option.

     22. Committee Authority.  The Committee shall have all discretion, power,
and authority to interpret the Plan and this Agreement and to adopt such rules
for the administration, interpretation and application of the Plan as are
consistent therewith. All actions taken and all interpretations and
determinations made by the Committee in good faith shall be final and binding
upon the Employee, the Company and all other interested persons, and shall be
given the maximum deference permitted by law. No member of the Committee shall
be personally liable for any action, determination or interpretation made in
good faith with respect to the Plan or this Agreement.

     23. Captions.  The captions provided herein are for convenience only and
are not to serve as a basis for the interpretation or construction of this
Agreement.

     24. Agreement Severable.  In the event that any provision in this Agreement
shall be held invalid or unenforceable, such provision shall be severable from,
and such invalidity or unenforceability shall not be construed to have any
effect on, the remaining provisions of this Agreement.

     25. Modifications to the Agreement.  This Agreement constitutes the entire
understanding of the parties on the subjects covered. The Employee expressly
warrants that he or she is not executing this Agreement in reliance on any
promises, representations, or inducements other than those contained herein.
Except as otherwise provided herein, modifications to this Agreement or the Plan
can be made only in an express written contract executed by a duly authorized
officer of the Company.

     26. Amendment, Suspension, Termination.  By accepting this option, the
Employee expressly warrants that he or she has received an option to purchase
stock under the Plan, and has received, read and understood a description of the
Plan. The Employee understands that the Plan is discretionary in nature and may
be modified, suspended or terminated by the Company at any time.

                                        5

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