Methods and structure for detection and handling of...

Details Methods and structure for detection and handling of... Methods and structure for detection and handling of...

2004-11-12

2008-09-23

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07428665

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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SCSI Accessed Fault-Tolerant Enclosures Interface Specification nStor Corporation and Intel Corporation Apr. 14, 1997.

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