Time and space efficient technique for creating virtual volume copies
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United States of America Patent
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Feb 8, 2011
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N/A
app pub date -
Feb 27, 2007
filing date -
Sep 6, 2002
priority date (Note) -
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Abstract
A chain of snapshots includes a more recent snapshot with a data block copied from a base volume, a less recent snapshot with a skip-pointer that leads to the data block in said more recent snapshot, and one or more intermediate snapshots between the more recent snapshot and the less recent snapshot in the chain of snapshots.
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