You can test your VMDK resource hierarchy by initiating a manual switchover that will simulate a failover of the resource instance from the primary server to the backup server.
Performing a Manual Switchover from the LifeKeeper GUI
You can initiate a manual switchover from the LifeKeeper GUI by selecting Edit > Resource > In Service. For example, an in-service request executed on a backup server causes the VMDK resource hierarchy to be placed in-service on the backup server and taken out-of-service on the primary server. At this point, the original backup server is now the primary server and original primary server has now become the backup server.
If you execute the Out of Service request, the resource hierarchy is taken out-of-service without bringing it in-service on the other server.