Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2006-12-19
2006-12-19
Kim, Matthew (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C707S793000, C707S793000, C707S793000, C711S114000, C711S154000, C711S170000, C711S202000, C711S214000
Reexamination Certificate
active
07152147
ABSTRACT:
A computer system comprises a primary volume22P having a plurality of storage blocks P, and a differential volume22D having a plurality of storage blocks D. Differential data corresponding to one among the plurality of storage blocks P is stored in at least one among the plurality of storage blocks D. A control device210identifies differential data which is unnecessary for a host device100, based on a snapshot management table S or C indicating whether data has been read by the host device100from any one of storage blocks P, and on a differential management table400indicating to which storage block P differential data corresponds and in which storage block D the data is stored, and performs at least one among removal of the identified differential data from the differential volume22D, and removal of an unnecessary information element from the differential management table400.
REFERENCES:
patent: 5553279 (1996-09-01), Goldring
patent: 5742792 (1998-04-01), Yanai et al.
patent: 6044444 (2000-03-01), Ofek
patent: 6081875 (2000-06-01), Clifton et al.
patent: 6311193 (2001-10-01), Sekido
patent: 6321239 (2001-11-01), Shackelford
patent: 6473775 (2002-10-01), Kusters et al.
patent: 6594744 (2003-07-01), Humlicek et al.
patent: 6631478 (2003-10-01), Wang et al.
patent: 2003/0177306 (2003-09-01), Cochran et al.
patent: 2004/0167943 (2004-08-01), Margolus
patent: 2004/0186900 (2004-09-01), Nakano et al.
patent: 2004/0210608 (2004-10-01), Lee et al.
patent: 2001-216185 (2001-08-01), None
Microsoft Computer Dictionary, 5thEdition, 2002, p. 427.
Kim Matthew
Peers Chase
Townsend and Townsend / and Crew LLP
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