System managing a plurality of virtual volumes and a virtual volume management method for the system
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United States of America Patent
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Sep 23, 2014
Grant Date -
May 17, 2012
app pub date -
Jan 27, 2012
filing date -
Aug 30, 2004
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Abstract
The system includes first and second storage systems. The first storage system includes a first control unit managing a plurality of logical units (LUs) and a plurality of first storage devices being controlled to store data by the first control unit, the plurality of LUs including a first type LU and a second type LU, the first type LU corresponding to at least one of the plurality of first storage devices of the first storage system so that data to be stored to the first type LU is stored to the at least one of the plurality of first storage devices of the first storage system, the second type LU mapping to an LU which is managed by a second storage system so that data to be stored to the second type LU is transferred to the LU managed by the second storage system.
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