Restoring deduplicated data objects from sequential backup devices
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United States of America Patent
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Nov 20, 2012
Grant Date -
Jun 21, 2012
app pub date -
Dec 17, 2010
filing date -
Dec 17, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
Provided are computer program product, system, and method for restoring deduplicated data objects from sequential backup devices. A server stores data objects of extents having deduplicated data in the at least one sequential backup device. The server receives from a client a request for data objects. The server determines extents stored in the at least one sequential backup device for the requested data objects. The server or client sorts the extents according to an order in which they are stored in the at least one sequential backup device to generate a sort list. The server retrieves the extents from the at least one sequential backup device according to the order in the sort list to access the extents sequentially from the sequential backup device in the order in which they were stored. The server returns the retrieved extents to the client and the client reconstructs the requested data objects from the received extents.
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