SSD Lifetime Via Exploiting Content Locality
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United States of America Patent
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Issued Date -
Feb 27, 2014
app pub date -
Aug 27, 2013
filing date -
Aug 27, 2012
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Abandoned
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Abstract
A solid state drive (SSD), which is used in computing systems, implements the systems and methods of a Delta Flash Transition Layer (ΔFTL) to store compressed data in the SSD instead of original new data. The systems and methods of ΔFTL reduce the write count via exploiting the content locality between the write data and its corresponding old version in the flash. Content locality implies the new version resembles the old to some extent, so that the difference (delta) between the versions may be compressed compactly. Instead of storing new data in its original form in the flash, ΔFTL stores the compressed deltas.
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