Patent Number: 8,880,839

Title: Writing adjacent tracks to a stride, based on a comparison of a destaging of tracks to a defragmentation of the stride

Abstract: Compressed data is maintained in a plurality of strides of a redundant array of independent disks, wherein a stride is configurable to store a plurality of tracks. A request is received to write one or more tracks. The one or more tracks are written to a selected stride of the plurality of strides, based on comparing the number of operations required to destage selected tracks from the selected stride to the number of operations required to defragment the compressed data in the selected stride.

Inventors: Gupta; Lokesh M. (Tucson, AZ)

Assignee: International Business Machines Corporation

International Classification: G06F 12/00 (20060101); G06F 13/28 (20060101); G06F 13/00 (20060101)

Expiration Date: 2019-11-04 0:00:00