Caching scheme synergy for extent migration between tiers of a storage system

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United States of America Patent

PATENT NO 9760500
SERIAL NO

15176036

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Abstract

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A method includes determining to move an extent from a source-tier in a storage system to a destination-tier in the storage system, wherein a set of tracks of the extent is presently being accessed. In response to determining that a parameter of the extent exceeds a migration threshold, a destination-tier cache is populated with tracks as they are removed from a read-stack associated with the source-tier and/or a write-stack associated with the source-tier using a predetermined read-to-write ratio.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Montgomery, David San Jose, US 89 1489
Sorenson, Todd C Tucson, US 88 672

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