Reducing resources in a high reliability data storage subsystem

Details Reducing resources in a high reliability data storage subsystem Reducing resources in a high reliability data storage subsystem

G - Physics

06

F

354/241

G06F 11/00 (2006.01) G06F 11/14 (2006.01) G06F 11/20 (2006.01) G11C 29/00 (2006.01) G06F 11/08 (2006.01)

Patent

CA 1324840

ABSTRACT To improve data reliability in a computer system, at least one primary copy and one secondary duplicate copy of data are stored each in a different storage devices having similar access characteristics. Periodically, a copy of the data is logged into an archival device. The secondary copy is then removed from the storage devices. The space occupied by the removed secondary copy is reallocated to store other data.

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