Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2006-10-10
2006-10-10
Sparks, Donald (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C707S793000
Reexamination Certificate
active
07120767
ABSTRACT:
In the storage-based snapshot creation, a block-selection specifying unit provided on a NAS processing unit specifies a block, which becomes necessary for the generation of snapshot data, to a specified-block analyzing unit within a disk apparatus. Moreover, a disk controller generates the snapshot data on the block specified as the snapshot target, while making an inquiry to the specified-block analyzing unit. This makes it possible to create the snapshot in a storage-capacity reduced manner, and to specify the snapshot creation in a partition, file, or directory unit.
REFERENCES:
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patent: 2003/0084242 (2003-05-01), Strange et al.
patent: 2003/0229651 (2003-12-01), Mizuno et al.
patent: 2004/0002934 (2004-01-01), Taulbee et al.
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patent: 2004/0059878 (2004-03-01), Madany
Hara Junichi
Iitsuka Takayoshi
Nakano Takahiro
Sonoda Koji
Takata Yutaka
Hitachi , Ltd.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Rutz Jared
Sparks Donald
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