Synchronization for initialization of a remote mirror storage facility
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United States of America Patent
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Apr 26, 2016
Grant Date -
Feb 12, 2015
app pub date -
Oct 24, 2014
filing date -
Oct 13, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A method includes computing, in a local storage system having a local volume with a plurality of local regions, respective local checksum signatures over the local regions, and computing, in a remote storage system having a remote volume with remote regions in a one-to-one correspondence with the local regions, respective remote checksum signatures over the remote regions. A given remote region is identified, the given remote region having a given remote signature and a corresponding local region with a given local signature that does not match the given remote signature. The data in the given remote region is then replaced with data from the corresponding local region.
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