Storage control system including virtualization and control method for same
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United States of America Patent
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Jun 30, 2009
Grant Date -
Mar 13, 2008
app pub date -
Oct 25, 2007
filing date -
Feb 18, 2004
priority date (Note) -
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Abstract
A storage control system judges whether the data pattern of data exchanged with a higher-level device (hereafter “data”) conforms to one or a plurality of write-excluded data patterns comprised in write-excluded data pattern information prepared in advance. If a negative judgment result is obtained, the storage control subsystem stores the data in a logical device formed on a disk storage device. If, on the other hand, a positive judgment result is obtained, the storage control subsystem erases the data without storing in a logical device.
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