Methods and structure for detection and handling of catastrophic SCSI errors
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United States of America Patent
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Sep 23, 2008
Grant Date -
May 25, 2006
app pub date -
Nov 12, 2004
filing date -
Nov 12, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods and associated structure for rapidly detecting a catastrophic failure of a bus structure within a storage subsystem. Features and aspects hereof associated with SCSI bus storage system configurations coordinate such failure detection with standard monitoring features of the SAF-TE enclosure monitoring specifications. In particular, standard polling operations of a SAF-TE compliant enclosure may be terminated early so as to preclude queuing additional polling related commands for disk drives or an enclosure of disk drives coupled to a SCSI bus cable or backplane that has experienced a catastrophic failure. Other features and aspects hereof disable all disk drives in a storage system that are coupled to a failed common bus.
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