Restoring virtual devices
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United States of America Patent
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-
Sep 4, 2007
Grant Date -
Oct 16, 2003
app pub date -
Nov 27, 2002
filing date -
Apr 10, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
Restoring data includes providing data in a first storage area that contains sections of data, providing data in a second storage area where the second type has, for each section of data thereof, at least one of: a pointer to a corresponding section of data of the first storage area and a pointer to corresponding section of data of a third storage area of the first type. In one embodiment, a sections of the first storage area are replaced with pointers to the third storage area. In other embodiments, sections of a fourth storage area of the first type are replaced with pointers to the third storage area and optionally with pointers to the first storage area. In another embodiment, data is copied from the second storage area to a third storage area of the second type.
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