Logical Drive Duplication
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United States of America Patent
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N/A
Issued Date -
Aug 18, 2011
app pub date -
Feb 17, 2010
filing date -
Feb 17, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
There is provided a method of, and apparatus for, duplicating a logical drive. The method includes sequentially copying data from a source logical drive to a destination logical drive, and determining whether a write request to the source logical drive is received during the sequential copying. If so, the step of copying data in the write-requested data area to an additional storage area is carried out prior to executing the write request. It is further specified that the data in the write-requested data area is to be ignored and not copied during the sequential copying. The method further includes copying, upon completion of the sequential copying, data from the additional storage area to the destination logical drive.
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