Quad-state power-saving virtual storage controller

Details Quad-state power-saving virtual storage controller Quad-state power-saving virtual storage controller

2008-04-30

2011-10-11

Suryawanshi, Suresh K (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S300000, C711S114000

Reexamination Certificate

active

08037332

ABSTRACT:
A method, system and computer program product for reducing the collective power consumption of a plurality of storage devices including a plurality of associated storage volumes is provided. The storage volumes are grouped by a last access time according to a plurality of ranks. The plurality of ranks corresponds to a level of power consumption based on device activity. A volume of the plurality of storage volumes is moved between the plurality of ranks according to an access pattern of the volume.

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