Mohammed N Khatib

US Patent:

20170192685, Jul 6, 2017

Filed:

Jan 6, 2016

Appl. No.:

14/989560

Inventors:

- Amsterdam, NL
Mohammed Ghiath Khatib - Santa Clara CA, US
Adam C. Manzanares - San Jose CA, US

International Classification:

G06F 3/06
G11B 19/26

Abstract:

The present disclosure relates to a system and methods of controlling a system of storage devices. In particular, the present disclosure relates to methods of controlling peak power and energy consumption in storage systems due to storage devices while maintaining data availability. The system implements a method for maintaining data availability in a storage subsystem by determining a plurality of storage devices to include in a fixed set of storage devices based on a fault tolerance system. The storage devices included in the fixed set are prevented from transitioning between RPM spin modes. The method further involves controlling peak power and energy consumed by the storage subsystem which may include transitioning the storage devices not included in the fixed set from a high RPM operational mode to a low RPM operational mode to reduce peak power and energy consumption.