Probabilistic summary data structure based encoding for garbage collection in backup systems
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United States of America Patent
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Aug 24, 2010
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N/A
app pub date -
Jul 27, 2007
filing date -
Jun 30, 2003
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Abstract
A method and apparatus for different embodiments of probabilistic summary data structure based encoding for garbage collection are described. In one embodiment, a method comprises generating a probabilistic summary data structure that represents active blocks of data within a storage device based on identifications of the active blocks or the data within the active blocks. The method also includes performing garbage collection of at least a portion of the storage device based on the probabilistic summary data structure.
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