Adjusting Pool Volume Multipathing; Usage; Examples - Red Hat GFS 5.2.1 Administrator's Manual

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Chapter 5. Using the Pool Volume Manager

This example displays statistics for all activated pools:

pool_info -s

This example displays statistics for pool0:

pool_info -s pool0

This example clears statistics for pool0:

pool_info -c pool0

5.14. Adjusting Pool Volume Multipathing

The

command adjusts multipathing for running pools. Using the

pool_mp

the

option, you can change the type of multipathing. Using the

-m

option, you can reintegrate failed paths.

Note

Pool multipathing must be enabled in the license ﬁle to use this feature.

Change the Type of Multipathing

pool_mp -m {none | failover | n} [PoolName]

{none | failover | n}

Speciﬁes the type of multipathing to be used: either none, failover, or the number of kilo-

bytes, n, used as a round-robin stripe value.

PoolName

Speciﬁes the pool on which to adjust multipathing. If no pool names are speciﬁed, this action is

attempted on all active pools.

Reintegrate Failed Paths

pool_mp -r [PoolName]

PoolName

Speciﬁes the pool on which to attempt restoration of any failed paths. If no pool names are

speciﬁed, this action is attempted on all active pools.

command with

pool_mp

command with the

pool_mp

-r

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