Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2005-11-01
2005-11-01
Bragdon, Reginald G. (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S112000, C711S155000, C711S171000, C714S006130, C714S801000, C714S779000
Reexamination Certificate
active
06961816
ABSTRACT:
A disk array device selects a redundant generation method for reducing the overhead and improving the reliability associated with generating redundant data. The disk array device includes a disk controller connected to and controlling an array of disk drives. The disk controller includes a redundant data generator, a difference data generator, and a redundant data generation method selector. The redundant data generator is able to generate redundant data via a read and modify method and an all stripes method. The disk array device selects a method of generating redundant data from a method of read and modify and all stripes, and a method of generation in a drive and a method of difference, both of which are executed to generate redundant data on a disk drive.
REFERENCES:
patent: 5191584 (1993-03-01), Anderson
patent: 5398253 (1995-03-01), Gordon
patent: 5469566 (1995-11-01), Hohenstein et al.
patent: 5506977 (1996-04-01), Jones
patent: 5613088 (1997-03-01), Achiwa et al.
patent: 5734812 (1998-03-01), Yamamoto
patent: 5740465 (1998-04-01), Matsunami et al.
patent: 5742752 (1998-04-01), DeKoning
patent: 5875456 (1999-02-01), Stallmo et al.
patent: 6067635 (2000-05-01), DeKoning et al.
patent: 6269424 (2001-07-01), Katsuragi et al.
patent: 6463505 (2002-10-01), Katsuragi et al.
patent: 0 594464 (1994-04-01), None
patent: 0660236 (1995-06-01), None
patent: 0 701 208 (1996-03-01), None
patent: 0 701 208 (1996-03-01), None
patent: 2 305 275 (1997-04-01), None
patent: 05046324 (1993-02-01), None
patent: A 5 46 324 (1993-02-01), None
patent: 06-075709 (1994-03-01), None
“A Case for Redundant Arays of Inexpensive Disks (RAID),” David A. Patterson, Garth Gibson, and Randy H. Katz, Report No. UCB/CSD 87/391, Dec. 1987, Computer Science Division (EECS), University of California, Berkley, California 94720.
EPO Communication dated Nov. 22, 2004 with attached European Search Report.
Katsuragi Eiju
Kurano Akira
Ogata Mikito
Takahashi Naoya
Tamiya Toshihiko
Bragdon Reginald G.
Hitachi , Ltd.
Kenyon & Kenyon
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