Dynamic spindle usage leveling

Details Dynamic spindle usage leveling Dynamic spindle usage leveling

2006-12-05

2006-12-05

Bragdon, Reginald (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S114000, C711S165000, C714S006130

Reexamination Certificate

active

07146460

ABSTRACT:
Methods of data leveling in a virtualized storage system are described. In one implementation, the method comprises detecting an event that changes the eligible storage capacity of a storage system, and, in response to the event: determining a disk critical ratio for each disk in a group of disks in the storage system; determining an RSS critical ratio for a plurality of RSSs in the storage system; and moving data in the storage system in accordance with at least one of the RSS critical ratio and the disk critical ratio.

REFERENCES:
patent: 6275898 (2001-08-01), DeKoning
patent: 6324620 (2001-11-01), Christenson et al.
patent: 6366945 (2002-04-01), Fong et al.
patent: 6665740 (2003-12-01), Mason et al.
patent: 6715050 (2004-03-01), Williams et al.
patent: 6715054 (2004-03-01), Yamamoto

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