CFSMount offline script was performing  mount -p | grep -w "/db2/P40/log_dir/"  and grep command was returning nothing because of the extra trailing / in the MountPoint attribute in the resource definition. After removing the trailing / from resource MountPoint attribute value the issue got resolved.
 

 

- Customer was unable to offline CFSMount resources and the resource goes into "Administrative intervention may be required" state. The following messages are logged in the engine_A.log: 2011/08/01 10:15:13 VCS NOTICE V-16-1-10300 Initiating Offline of Resource P40_logdir (Owner: Unspecified, Group: cfs) on System xxxx01 2011/08/01 10:15:15 VCS ERROR V-16-2-13064 (xxxx01) Agent is calling clean for resource(P40_logdir) because the resource is up even after offline completed. 2011/08/01 10:15:16 VCS ERROR V-16-2-13077 (xxxx01) Agent is unable to offline resource(P40_logdir). Administrative intervention may be required. Such resources were showing "W_OFFLINE_PROPAGATE" state. main.cf resource definition: CFSMount P40_logdir (                 MountPoint = "/db2/P40/log_dir/"      <<<<   NOTE extra / at the end                 BlockDevice = "/dev/vx/dsk/DG/logdir"
                )