For all the Physical Volumes (PV) associated with a Volume Group, set the timeout to a smaller value than specified in the VolumeIOTimeout attribute of the resource. For example, if you specify an IOTimeout to equal 15 seconds, update the PV Timeout to a value that is less than 15 seconds.
Use the following command to change the timeout:
# pvchange -t
time /dev/dsk/
PV Used
# pvchange -t
time
Physical Volume
# pvchange -t 10 /dev/dsk/c2t4d4