The high availability fire drill detects discrepancies between the VCS configuration and the underlying infrastructure on a node; discrepancies that might prevent a service group from going online on a specific node.
For NFSRestart resources, the high availability drill performs the following, it:
Checks the NFS configuration file to confirm that the NFS server does not come online automatically after reboot.
Verifies that the NFS lock directory (which is specified by the LocksPathName attribute of NFSRestart) is on shared storage.
For more information about using the high availability fire drill see the Cluster Server Administrator's Guide.