Storage system and data management method
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United States of America Patent
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Jul 10, 2012
Grant Date -
Dec 29, 2011
app pub date -
Sep 1, 2011
filing date -
Oct 11, 2006
priority date (Note) -
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Abstract
A storage system including: a virtualization apparatus having a control unit, said control unit setting an actual volume for storing data sent from a host apparatus, formed in a storage area provided by a physical disk; and a virtual volume paired with the actual volume, for storing replicated data for the data; and an external storage apparatus having a logical volume that functions as an actual storage area for the virtual volume; and a tape associated with the logical volume, for storing the replicated data; wherein the external storage apparatus has a copy unit for copying the replicated data stored in the logical volume to the tape.
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