Dynamic information storage or retrieval – Control of storage or retrieval operation by a control... – Mechanism control by the control signal
Reexamination Certificate
2008-01-17
2011-10-11
Tsai, Henry (Department: 2184)
Dynamic information storage or retrieval
Control of storage or retrieval operation by a control...
Mechanism control by the control signal
C369S047100, C369S047450, C360S046000, C360S073010, C360S073030, C360S073050, C360S073060, C360S073070, C360S073080, C711S114000, C710S008000, C710S015000, C710S019000, C710S062000, C710S065000, C707S608000, C707S705000, C707S713000, C707S719000, C707S720000
Reexamination Certificate
active
08036076
ABSTRACT:
Provided is a computer system including: a computer running as a DB server; a storage system including a plurality of disk drives for storing data; and a management module, in which: at least one of the plurality of disk drives stores data of a DB schema written by the computer; the management module specifies the DB schema to be accessed based on a received query, transmits, to the storage system, an instruction to copy at least a portion of the data of the specified DB schema from the disk drive to a memory, and transmits, to the storage system, an instruction to control an rpm of the disk drive that stores the data of the specified DB schema; and the storage system controls the rpm of the disk drive based on the instruction. Accordingly, power consumption of the storage system can be reduced even if installed disks increase in number.
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Sudhanva Gurumurthi et al., “DRPM: Dynamic Speed Control for Power Management in Server Class Disks”, ACM SIGARCH Computer Architecture News, Proceedings of the 30thannual international symposium on computer architecture ISCA '03, vol. 31, Issue 2.
Idei Hideomi
Mogi Kazuhiko
Nishikawa Norifumi
Hitachi , Ltd.
Snyder Steven
Tsai Henry
Volpe and Koenig P.C.
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