Methods and apparatus for loading CRC values into a CRC cache in a storage controller
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United States of America Patent
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Jul 6, 2004
Grant Date -
Jun 19, 2003
app pub date -
Feb 14, 2002
filing date -
Dec 17, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods and structure for loading a CRC value cache memory in a storage controller on the fly to reduce overhead processing associated with access to system memory to load the CRC value cache memory. The invention provides for circuits and methods for monitoring normal system accesses to system memory to manipulate CRC values in system memory in conjunction with associated access to disk drive of a storage subsystem. When accesses are detected loading or retrieving CRC values from system memory, the CRC values are loaded substantially in parallel into the CRC value cache memory.
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