Method for selectively enabling and disabling read caching in a storage subsystem

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United States of America Patent

PATENT NO 8874854
SERIAL NO

11830124

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Abstract

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A mechanism for selectively disabling and enabling read caching based on past performance of the cache and current read/write requests. The system improves overall performance by using an autonomic algorithm to disable read caching for regions of backend disk storage (i.e., the backstore) that have had historically low cache hit ratios. The result is that more cache becomes available for workloads with larger hit ratios, and less time and machine cycles are spent searching the cache for data that is unlikely to be there.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
La, Frese Lee Charles Tucson, US 3 267
Martin, Joshua Douglas Tucson, US 2 229
Miller, Justin Thomson Tucson, US 4 33
Miller, Vernon Walter Tucson, US 4 248
Thompson, James Russell Tucson, US 4 238
Xu, Yan Tucson, US 309 2331
Yiparaki, Olga Tucson, US 10 270

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