NEC Storage Software PathManager Manuel d'utilisateur Page 38

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Chapter 3 Functions of NEC Storage PathManager
[For Windows Server 2003]
C:\>spscmd -getwatcher
Health check : Enable
Request interval : 30 sec
C:\>spscmd -setwatcher :60::
C:\>spscmd -getwatcher
Health check : Enable
Request interval : 60 sec
C:\>
Set only Request interval at 60 seconds
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Failure avoidance and failure recovery are functions that shut down paths in case of path failures, execute
failover so that alternative paths will be used, and execute failback at the time of failure recovery. The
abovementioned path patrol executes failover and failback by using these functions.
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When failures occur in the paths, NEC Storage PathManager automatically switches paths to be used from
failed paths to normal paths. This action is referred to as failover. When unavailable paths due to failures
recover from the failures and become available again, NEC Storage PathManager automatically recognizes
this event and adds these recovered paths to the group of available paths. This action is referred to as
failback.
III-20
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