Storage apparatus for controlling power saving modes of...

Details Storage apparatus for controlling power saving modes of... Storage apparatus for controlling power saving modes of...

2006-10-11

2010-06-01

Patel, Niketa I (Department: 2181)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output access regulation

C710S040000, C710S042000

Reexamination Certificate

active

07730235

ABSTRACT:
A storage apparatus is provided that is capable of reducing data maintenance management costs with a performance that is both highly reliable and fast. The present invention is storage apparatus where an intermediary device is arranged between a controller and a plurality of disk devices of different performances arranged in a hierarchical manner. The controller unit carries out I/O accesses to and from the disk devices via the intermediary devices based on access requests sent from host apparatus. The intermediary device includes a power saving control function for the disk device and carries out operation control such as spin off and spin up of disk devices in accordance with conditions set in advance.

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