Discrete mapping of parity blocks
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United States of America Patent
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Aug 10, 2004
Grant Date -
Nov 7, 2002
app pub date -
Jan 29, 2002
filing date -
Jan 29, 2001
priority date (Note) -
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Abstract
A system and method for discrete mapping of parity blocks in a computer storage system that includes a plurality of disk drives for storing parity groups. Each parity group includes storage blocks. The storage blocks include one or more data blocks and a parity block that is associated with the one or more data blocks. Each of the storage blocks is stored on a separate disk drive such that no two storage blocks from a given parity set reside on the same disk drive. File system metadata includes information to describe the data blocks in one or more parity groups.
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