Failover rehearsal

Failover rehearsal provides mirroring status for different storage devices in a multi-site cluster.

PowerHA® SystemMirror® 7.2.2, or later, provides you with the following information when you move resource to other sites:
  • Storage mirroring availability between storage sites
  • Direction of mirroring between sites
  • Types of mirroring
  • Status of mirroring
Note: Failover rehearsal feature is available only in SAN Volume Controller (SVC) storage devices in a linked cluster environment.
clmgr manage cluster rehearsal  \
[ RESOURCE_GROUP=”<RG#1> [,<RG#2>,...]” ]

Example

To check the mirroring status of storage devices included in RG1 and RG2 resource groups, enter the following command:
clmgr manage cluster rehearsal RESOURCE_GROUP="RG1 RG2"