Method for demoting tracks from cache

Details Method for demoting tracks from cache Method for demoting tracks from cache

2004-05-10

2008-09-02

Kim, Hong (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S112000, C711S111000, C711S101000, C711S118000, C711S135000

Reexamination Certificate

active

07421535

ABSTRACT:
Provided are a method, system, and program for destaging a track from cache to a storage device. The destaged track is retained in the cache. Verification is made of whether the storage device successfully completed writing data. Indication is made of destaged tracks eligible for removal from the cache that were destaged before the storage device is verified in response to verifying that the storage device is successfully completing the writing of data.

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American National Standard, “Information Technology—SCSI Block Commands—2 (SBC-2)”, Working Draft, Project T10/1417- D, Revision 13, Mar. 20, 2004, pp. 80-82 and 93-95.

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