Source: http://www.google.com/patents/US7454656?dq=5,960,411
Timestamp: 2015-03-01 13:24:32
Document Index: 666921939

Matched Legal Cases: ['Application No. 2004', 'art 20', 'art 30', 'art 40', 'arts 125', 'art 120', 'art 120', 'art 120', 'art 120', 'art 120']

Patent US7454656 - Storage device and storage device power consumption control method - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAccording to the present invention, in cases where a CHA function and a DKA function are mounted within a single package, a battery power supply that is used during the occurrence of power supply trouble is effectively utilized so that the supply of power can be separately controlled for each function....http://www.google.com/patents/US7454656?utm_source=gb-gplus-sharePatent US7454656 - Storage device and storage device power consumption control methodAdvanced Patent SearchPublication numberUS7454656 B2Publication typeGrantApplication numberUS 10/937,311Publication dateNov 18, 2008Filing dateSep 10, 2004Priority dateJul 21, 2004Fee statusPaidAlso published asUS20060020855Publication number10937311, 937311, US 7454656 B2, US 7454656B2, US-B2-7454656, US7454656 B2, US7454656B2InventorsNaoki Okada, Kenji Mori, Nobuyuki MinowaOriginal AssigneeHitachi, Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (10), Referenced by (1), Classifications (5), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetStorage device and storage device power consumption control method
US 7454656 B2Abstract
According to the present invention, in cases where a CHA function and a DKA function are mounted within a single package, a battery power supply that is used during the occurrence of power supply trouble is effectively utilized so that the supply of power can be separately controlled for each function. A CHA part and DKA part are disposed in a single control package. When trouble such as a power outage is detected, the CHA part blocks access requests from the host, and initiates end processing. When the end processing of the CHA part is completed, the package internal power supply control part stops the clock supply to the CHA part. Then, when the DKA part completes destage processing, the package internal power supply control part stops the supply of power to the DKA part. The power consumption of the package is lowered in stages in accordance with the progress of the end processing.
This application relates to and claims priority from Japanese Patent Application No. 2004-213404 filed on Jul. 21, 2004, the entire disclosure of which is incorporated herein by reference.
In the storage device described in the abovementioned reference, the clock to the internal circuits is stopped and blocking processing is performed in cases where trouble has occurred in a package. However, for example, no consideration is given to reducing the power consumption of the storage device during power outages or the like. Furthermore, since blocking processing is performed in package units, the package as a whole cannot be blocked in cases where only some of the functions of this package are required.
FIG. 1 is an explanatory diagram which shows the concept of an embodiment of the present invention;
Embodiments of the present invention will be described below with reference to the attached figures. FIG. 1 is an explanatory diagram which shows in model form the overall concept of the present embodiment. In the present embodiment, as will be described below, a plurality of function realizing parts (1A, 1B) are disposed inside a single control package (1), and power supply boundaries are set between these respective function realizing parts (1A, 1B), so that the supply of power can be separately controlled for each of the function realizing parts (1A, 1B).
FIG. 2 is an explanatory diagram which shows in model form a front view of the storage device 10, and FIG. 3 is an explanatory diagram which shows in model form a side view of the storage device 10. For example, the storage device 10 can be constructed so that this storage device 10 comprises a housing 11, a memory part 20 that is disposed inside this housing 11, a control part 30, and a device power supply part 40.
A second example of the present invention will be described with reference to FIGS. 12 and 13. One characterizing feature of this example is that PK internal power supply control parts 125A and 125B are respectively disposed in the CHA part 120A and DKA part 120B inside the composite package 120, and that the supply of power to the CHA part 120A is stopped in cases where power supply trouble such as a power outage or the like occurs.
A third example will be described with reference to FIGS. 14 through 18. One characterizing feature of this example is that the supply of power inside the composite package 120 is separately controlled in accordance with the degree of power supply trouble.
A fourth example will be describe with reference to FIG. 19. One characterizing feature of this example is that in cases where trouble occurs during destage processing, another DKA part is charged with performing destage processing.
A fifth example will be described with reference to FIG. 20. One of the characterizing features of this example is that power is supplied to the write cache 132 during destage processing, while the supply of power to the read cache 131 is stopped.
A sixth example will be described with reference to FIG. 21. One characterizing feature of this example is that the supply of power to RAID groups in which writing has been completed is stopped during destage processing. First, by accessing the shared memory 140, the DKA part 120B refers to a table that shows the correspondence relationship of the LU 180, RAID group 170 and disk drives 21, and specifies the disk drives 21 that are used in destage processing and the disk drives 21 that are not used in destage processing (S161). Disk drives 21 other than the disk drive 21 used in destage processing may be judged to be disk drives that are not used in destage processing.
7. SEVENTH EXAMPLE
A seventh example will be described with reference to FIG. 22. One characterizing feature of this example is that the supply of power can be separately controlled for each function of the CHA part 120A.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS5588144Nov 29, 1994Dec 24, 1996Hitachi, Ltd.Storage system having a bus common to a plurality of kinds of groups of packagesUS5828823Apr 25, 1997Oct 27, 1998Unisys CorporationIn a data processing systemUS5905994 *Dec 5, 1996May 18, 1999Hitachi, Ltd.Magnetic disk controller for backing up cache memoryUS6711692 *May 26, 2000Mar 23, 2004Renesas Technology Corp.Data processing unit including central unit and peripheral unit driven by separate power suppliesUS6993680 *Feb 2, 2004Jan 31, 2006Hitachi, Ltd.Backup power supply device for a storage deviceUS7058835 *Mar 21, 2002Jun 6, 2006Emc CorporationSystem, method and apparatus for controlling supply of backup power to first and second power planes in the event of a power failure of a main power supplyUS20040078508Oct 2, 2003Apr 22, 2004Rivard William G.System and method for high performance data storage and retrievalUS20040078663 *Apr 18, 2003Apr 22, 2004Kabushiki Kaisha ToshibaInformation processing system and disk control method used in the sameUS20050120251Feb 2, 2004Jun 2, 2005Mitsuo FukumoriStorage deviceJP2003036127A Title not available* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7979738 *Feb 25, 2009Jul 12, 2011Hangzhou H3C Technologies, Co., Ltd.Virtual tape library backup systems, and a method of hard disk drive power control* Cited by examinerClassifications U.S. Classification714/22, 714/24International ClassificationG06F11/00Cooperative ClassificationG06F11/1441European ClassificationG06F11/14A8PLegal EventsDateCodeEventDescriptionJun 4, 2013ASAssignmentFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HITACHI, LTD.;REEL/FRAME:030555/0554Owner name: GOOGLE INC., CALIFORNIAEffective date: 20121016Apr 25, 2012FPAYFee paymentYear of fee payment: 4Nov 15, 2004ASAssignmentOwner name: HITACHI, LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OKADA, NAOKI;MORI, KENJI;MINOWA, NOBUYUKI;REEL/FRAME:016014/0236Effective date: 20040908RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services