Storage system and method for backing up data
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United States of America Patent
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Nov 22, 2011
Grant Date -
Feb 12, 2009
app pub date -
Jan 28, 2008
filing date -
Aug 9, 2007
priority date (Note) -
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Abstract
To realize backup that gives no influence on on-line performance at low cost, provided is a storage system including one or more disk storage devices, a tape storage device, and a controller for controlling the at least one disk storage device and the tape storage device. The controller stores a copy of data stored in a first volume in a third volume, reads the copy of the data stored in the first volume from the third volume to store the copy in a first tape storage medium of the tape storage device, stores a copy of data stored in a second volume in the third volume, and reads the copy of the data stored in the second volume from the third volume to store the copy in a second tape storage medium of the tape storage device.
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