Data storage system power management

Details Data storage system power management Data storage system power management

2006-09-29

2010-10-05

Patel, Hetul (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C713S320000

Reexamination Certificate

active

07809884

ABSTRACT:
A technique provides access to data in a data storage system. The technique involves providing a disk mirroring assembly including a primary mirror and a secondary mirror. The primary mirror has a set of high speed disk drives. Each high speed disk drive is configured to provide data access while rotating platters at a predefined high performance speed. The secondary mirror has a set of moderate speed disk drives. Each moderate speed disk drive is configured to provide data access while rotating platters at a predefined moderate speed which is less than the predefined high performance speed. The technique further involves operating the disk mirroring assembly in a particular power management state, and performing data access operations on the disk mirroring assembly while the disk mirroring assembly operates in the particular power management state.

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