Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2011-06-28
2011-06-28
Patel, Kaushikkumar (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S162000, C711S218000, C714S006130
Reexamination Certificate
active
07970995
ABSTRACT:
A storage group configured by a plurality of storage devices is configured by a plurality of storage sub-groups, and the respective storage sub-groups are configured from two or more storage devices. A sub-group storage area, which is the storage area of the respective storage sub-groups, is configured by a plurality of rows of sub-storage areas. A data set, which is configured by a plurality of data elements configuring a data unit, and a second redundancy code created on the basis of this data unit, is written to a row of sub-storage areas, a compressed redundancy code is created on the basis of two or more first redundancy codes respectively created based on two or more data units of two or more storage sub-groups, and this compressed redundancy code is written to a nonvolatile storage area that differs from the above-mentioned two or more storage sub-groups.
REFERENCES:
patent: 6101615 (2000-08-01), Lyons
patent: 6415355 (2002-07-01), Hirofuji
patent: 6675318 (2004-01-01), Lee
patent: 2002/0194427 (2002-12-01), Hashemi
patent: 2003/0070043 (2003-04-01), Merkey
patent: 2005/0086575 (2005-04-01), Hassner et al.
patent: 2005/0120262 (2005-06-01), Dandrea
patent: 2007/0198890 (2007-08-01), Dholakia et al.
patent: 2008/0126912 (2008-05-01), Zohar et al.
patent: 2008/0168225 (2008-07-01), O'Connor
U.S. Appl. No. 12/026,858, filed Feb. 6, 2008 to M. Kitamura.
“Intelligent RAID 6 Theory Overview and Implementation” White Paper.
Kawamura Shunji
Ogawa Junji
Watanabe Yasuo
Brundidge & Stanger, P.C.
Hitachi , Ltd.
Patel Kaushikkumar
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