Method and apparatus for restoring a corrupted data volume
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United States of America Patent
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Jun 28, 2005
Grant Date -
N/A
app pub date -
Sep 25, 2002
filing date -
Sep 25, 2002
priority date (Note) -
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Abstract
Disclosed is a method and apparatus for restoring a corrupted data volume. In one embodiment, the method includes creating a backup copy of the data volume before the data volume is corrupted. Data transactions that modify the contents of the data volume are stored in a transaction log. After detection of the data corruption, a virtual copy of the backup copy is created. Thereafter, select data transactions stored in the transaction log, are applied to the virtual copy. Data of the corrupted data volume is then overwritten with data of the backup copy and data of the virtual copy after applying data transactions to the virtual copy.
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