Migration decision window selection based on hotspot characteristics
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United States of America Patent
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Sep 6, 2016
Grant Date -
Jan 7, 2016
app pub date -
Jul 7, 2014
filing date -
Jul 7, 2014
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Abstract
Methods and arrangements for selecting a migration decision window for hotspots in a multi-tier enterprise storage system. Aspects include collecting usage statistics for data stored in the multi-tier enterprise storage system, identifying hotspots from data stored in the multi-tier enterprise storage system based on the usage statistics, and determining one or more characteristics of the identified hotspots. Aspects further include calculating an average lifespan of the identified hotspots based on the one or more characteristics of the identified hotspots and selecting the migration decision window based on the average lifespan of the identified hotspots and the one or more characteristics of the identified hotspots.
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