Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2007-12-31
2010-06-01
Elmore, Reba I (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S166000
Reexamination Certificate
active
07730274
ABSTRACT:
Procedures and systems for avoiding undesired trespass may be deployed in host processors that use storage arrays with automated fail-back and fail-over functions. In one embodiment, a method may synchronize path records in a storage array with path records in a host processor. The method may detect a failure of a first data path through a first controller on the storage array to a logical unit (LUN) on the storage array. In response to the failure, the host processor may initiate a failover on the storage array of the LUN, so that the LUN is accessed through a backup controller on the storage array. The host processor may also issue commands to pin the failed-over LUN to the backup controller. For example, the host processor may issue commands to set the default owner of the LUN to be the backup controller.
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Campbell Stephenson LLP
Elmore Reba I
Symantec Operating Corporation
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