Data migration without interrupting host access
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United States of America Patent
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Jul 22, 2014
Grant Date -
Mar 28, 2013
app pub date -
Nov 13, 2012
filing date -
Aug 1, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A system includes a source storage device, a target storage device, a host coupled to the source storage device and the target storage device, and a first migration device coupled to the source storage device and the target storage device. The first migration device includes a first virtual storage device. The first migration device is configured to migrate data from the source storage device to the target storage device, and the first virtual storage device is configured to receive write access requests for the data from the host during the data migration and send the access request to the source storage device and target storage device.
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