Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2006-12-18
2009-08-25
Shah, Sanjiv (Department: 2185)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S004000, C711S100000, C711S111000, C711S112000, C711S147000, C711S148000, C711S154000, C711S161000, C711S162000, C711S165000, C711S117000, C714S005110, C714S006130, C714S006130
Reexamination Certificate
active
07581061
ABSTRACT:
The storage control device of the present invention uses a temporary volume to move data rapidly between volume groups. The storage control device forms a plurality of volume groups by grouping volumes of the same performance. At least one or more temporary volumes are each pre-provided in the respective volume groups. The control section calculates and manages the priority levels of the respective data. The data with the highest priority level in the lower volume group are copied beforehand to the temporary volume in the upper volume group at a time when the data are not being accessed by the host. As a result, data can be moved rapidly when data migration is executed and so forth.
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patent: 7177883 (2007-02-01), Yagawa
patent: 7475206 (2009-01-01), Murotani et al.
patent: 2004/0006572 (2004-01-01), Hoshino et al.
patent: 2005/0203964 (2005-09-01), Matsunami et al.
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Miyagaki Atsushi
Yasuta Koji
A. Marquez, Esq. Juan Carlos
Ayash Marwan
Hitachi , Ltd.
Shah Sanjiv
Stites & Harbison PLLC
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