Managing sequentiality of tracks for asynchronous PPRC tracks on secondary

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United States of America Patent

PATENT NO 9396121
APP PUB NO 20150261678A1
SERIAL NO

14207234

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Abstract

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For performing efficient management of tracks in an asynchronous Peer-to-Peer Redundant Copy (PPRC) operation in a computing storage environment, a correct status of a sequential bit is determined by performing one of: (1) examining a primary cache, where if data being transferred pursuant to the PPRC operation in a primary track remains in the primary cache, the sequential bit setting found therein is used, and (2) an Out-Of-Sync (OOS) bitmap is examined to determine if the sequential bit is set.

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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
Gupta, Lokesh M Tucson, US 542 3375
Harris,, Jr Theodore T Tucson, US 47 358
Spear, Gail A Tucson, US 58 901

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