Predictive point-in-time copy for storage systems
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United States of America Patent
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Jan 2, 2018
Issued Date -
N/A
app pub date -
Jun 13, 2013
filing date -
Dec 18, 2012
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Abstract
Method and system are provided for predictive point-in-time copy for storage systems. The method may include: recording a frequency of writes to an area of a storage volume; and prioritizing areas for having point-in-time copies carried out based on the write frequency to an area, wherein areas in the storage volume having a high write frequency are prioritized before areas with a lower write frequency. An area may be of a coarser granularity than a region tracked for the point-in-time copy. The method may include: recording the frequency of writes to an area in a given period; and prioritizing areas by their frequency of writes in the given period immediately prior to the point-in-time copy.
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