Time based file system for continuous data protection
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United States of America Patent
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Jul 12, 2011
Grant Date -
Dec 31, 2009
app pub date -
Jun 26, 2008
filing date -
Jun 26, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Tokens corresponding to data units written to a rewritable file system are stored, where an ordering relationship is maintained among the tokens, where the ordering relationship is such that a first token corresponding to a first data unit is of a lesser numerical value in comparison to a second token corresponding to a second data unit, and where the first data unit is written at an earlier point in time in comparison to the second data unit. The rewritable file system is reverted to an indicated point in time based on the ordering relationship that is maintained among the stored tokens.
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