Controller fault recovery system for a distributed file system
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United States of America Patent
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Apr 20, 2004
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N/A
app pub date -
Oct 18, 2000
filing date -
Mar 3, 1999
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Abstract
A controller fault recovery system recovers from faults that cause unscheduled stops for a distributed file system operating on an array storage system having multiple controllers. A proxy arrangement protects data integrity in the event of an unscheduled stop on just one controller in the array storage system. An atomic data/parity update arrangement protects data integrity in the event of an unscheduled stop of more than one controller.
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