Storage control device to backup data stored in virtual volume
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United States of America Patent
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Sep 18, 2012
Grant Date -
Apr 7, 2011
app pub date -
Dec 8, 2010
filing date -
Jan 24, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A storage control device uses write management information that manages locations of the occurrence of writing in one or more first storage devices in order to specify one or more locations where writing has occurred, and backs up one or more data elements stored in one or more specified locations to a second storage device. In order to perform a restore operation, write management information at the time of a backup is stored, and data elements stored in the second storage device are restored to one or more locations specified from the write management information at that time of backup, or to one or more new locations specified from new write management information indicating one or more new locations corresponding to the one or more locations.
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