Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2008-01-08
2010-11-02
Lane, Jack A (Department: 2185)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C707S648000, C707S649000, C707S650000, C707S654000
Reexamination Certificate
active
07827367
ABSTRACT:
A controller sets a specified time which is a time that specifies a time in the future relative to the current time for all of one or more secondary storage systems. The respective secondary storage systems have a logical volume for backup (BVOL), and set a backup preparation end state when a journal up to a specified time has been established, and report information showing a preparation end state to the controller. The controller issues a backup command to all of the one or more secondary storage systems when information showing a preparation end state is reported from all of the one or more secondary storage systems.
REFERENCES:
patent: 7356657 (2008-04-01), Mikami
patent: 2008/0168218 (2008-07-01), Arakawa et al.
patent: 2005-18738 (2004-03-01), None
patent: 2006-155676 (2006-03-01), None
Hiraiwa Yuri
Imazu Takeyuki
Maki Nobuhiro
Nishi Yoshiyuki
Watanabe Kazuhiko
Foley & Lardner LLP
Hitachi , Ltd.
Lane Jack A
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