Disk array controller capable of detecting and correcting for unexpected disk drive power-on-reset events
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United States of America Patent
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Jun 4, 2013
Grant Date -
Nov 26, 2009
app pub date -
Aug 5, 2009
filing date -
Dec 5, 2003
priority date (Note) -
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Abstract
A disk array controller detects disk drive power-on-reset events that may cause a disk drive to lose uncommitted write data stored in its cache. When an unexpected disk drive power-on-reset event is detected, the disk array controller may initiate an appropriate corrective action. For example, the disk array controller may initiate a disk drive rebuild operation, or may re-send a set of write commands to the disk drive.
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