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Exhibit 10.30

SEVERANCE AND CHANGE OF
CONTROL AGREEMENT

        THIS SEVERANCE AND CHANGE OF CONTROL AGREEMENT (the "Agreement") is made
effective as of September 8, 2002, between JNI Corporation, a Delaware
corporation ("JNI"), and Russell Stern ("Employee"), subject to JNI's Board of
Directors' approval.

RECITALS

A.Employee is presently employed as the President and Chief Executive Officer of
JNI.

B.Employee and JNI desire to memorialize in writing their understanding
regarding severance payments and vesting of options in the event of a Change in
Control.

C.JNI desires to make consistent all of its arrangements with its employees with
respect to the rights and responsibilities of such employees following a change
of control and Employee acknowledges the need for such consistency.

AGREEMENT

        In consideration of the promises and of the mutual covenants contained
herein, and for other good and valuable consideration, receipt of which is
hereby acknowledged, the parties do hereby agree as follows:

        1.    Effect of Certain Terminations after Change in Control.    

        1.1    Severance Package.    If within one (1) year after a Change in
Control (as that term is defined below) Employee's employment is terminated
without "Cause," or Employee resigns, then JNI will provide Employee with the
following "Severance Package," provided Employee complies with the conditions
set forth in section 1.2 below: (i) Employee will receive a severance payment
equal to eighteen (18) months' of Employee's base salary plus bonus at target
for such eighteen (18) month period, payable in a lump sum within 30 days of
such termination without Cause or resignation and (ii) accelerated vesting of
all options granted to Employee under JNI's stock option plans that, as of the
date of such termination without Cause or voluntary resignation, remain
unexercised and unvested, to the extent permissible by law. The acceleration of
vesting provision set forth in this section 1.1 is notwithstanding and in
addition to any existing vesting provisions set forth in JNI's stock option
plans.

        1.2    Conditions to Receive Severance Package.    The Severance Package
described above will be paid provided Employee meets the following conditions:
(a) Employee complies with all surviving provisions of any confidentiality or
proprietary rights agreement signed by Employee; and (b) Employee executes a
full general release, in a form acceptable to JNI, releasing all claims, known
or unknown, that Employee may have against JNI, and any subsidiary or related
entity, their officers, directors, employees and agents, arising out of or any
way related to Employee's employment or termination of employment with JNI.

        1.3    Change in Control.    A "Change in Control" means: (i) the
acquisition by an individual person or entity or a group of individuals or
entities acting in concert, directly or indirectly, through one transaction or a
series of related transactions, of more than 50% of the outstanding voting
securities of JNI; (ii) a merger or consolidation of JNI with or into another
entity after which the stockholders of JNI immediately prior to such transaction
hold less than 50% of the voting securities of the surviving entity; or (iii) a
sale of all or substantially all of the assets of JNI or (iv) the change in the
majority of the Board of Directors pursuant to a successful hostile proxy
contest.

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        1.4    Termination for "Cause."    For purposes of this Agreement, a
termination for "Cause" occurs if Employee is terminated for any of the
following reasons: (i) theft, dishonesty, or falsification of any material JNI
records; (ii) improper disclosure of JNI's confidential or proprietary
information; (iii) Employee's failure or inability to perform any reasonable
assigned duties after written notice from JNI of, and a reasonable opportunity
to cure, such failure or inability; or (iv) Employee's conviction of any
criminal act which impairs his ability to perform his duties as an employee of
JNI. Notwithstanding the foregoing clause (iii), Employee may not be terminated
for Cause as a result of his failure or inability to perform assigned duties
which are substantially inconsistent with his duties and responsibilities in
effect during the year preceding the Change in Control (or such shorter period
of time as Employee was employed by JNI).

        1.5    Payment Upon Death or Disability.    Neither death nor disability
shall affect JNI's obligations hereunder.

        2.    At-Will Employment.    Employee acknowledges that Employee
continues as an at-will employee and agrees that nothing in this Agreement is
intended to or should be construed to contradict, modify or alter Employee's
at-will employment relationship with JNI.

        3.    General Provisions.    

        3.1    Severability.    If any provision of this Agreement is held by a
court of competent jurisdiction to be invalid, void or unenforceable, the
remaining provisions shall nevertheless continue in full force without being
impaired or invalidated in any way.

        3.2    Successors and Assigns.    The rights and obligations of JNI
under this Agreement shall inure to the benefit of and shall be binding upon the
successors and assigns of JNI. Employee shall not be entitled to assign any of
his rights or obligations under this Agreement, other than to his estate as
provided in section 1.7.

        3.3    Applicable Law.    This Agreement shall be interpreted,
construed, governed and enforced in accordance with the laws of the United
States of American and the State of California. Each of the parties irrevocably
consents to the exclusive jurisdiction of the federal and state courts located
in San Diego, California, as applicable, for any matter arising out of or
relating to this Agreement.

        3.4    Amendments.    No amendment or modification of the terms or
conditions of this Agreement shall be valid unless in subsequent writing and
signed by the parties thereto.

        IN WITNESS WHEREOF, the parties hereto execute this Agreement, effective
as of the date first above written.

EMPLOYEE:   JNI CORPORATION
  

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By:
    

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  Title:     

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Address:           

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  Address:` 10945 Vista Sorrento Parkway
San Diego, CA 92130

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SEVERANCE AND CHANGE OF CONTROL AGREEMENT
RECITALS
AGREEMENT