Method and apparatus for compressing data in a file system
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United States of America Patent
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Feb 24, 2009
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N/A
app pub date -
May 26, 2004
filing date -
May 26, 2004
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Abstract
A method for storing a data block, comprising compressing the data block using a first compression algorithm to obtain a compressed data block, generating a data block compression header, combining the compressed data and the data compression header to obtain a compressed data block package, storing the compressed data block package in a storage pool, obtaining a compressed data block package location, calculating a data block checksum for the compressed data block, and storing a first indirect block in the storage pool, wherein the first indirect block comprises the compressed data block package location, the data block checksum, and a compression flag.
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