Disabling I/O fencing
You may have to disable fencing in the following cases:
-
The cluster has been upgraded to the latest SFCFS stack and the storage does not support the SCSI-3 PGR feature.
-
During installation fencing was turned on but later disabled.
By default, the VxFEN driver operates with I/O fencing enabled. To disable this feature without removing the coordinator disks, you must create the file /etc/vxfenmode
and include a string within the file to notify the VxFEN driver.
To stop and restart the driver
-
To stop and restart the driver, type the following commands:
# echo "vxfen_mode=disabled" > /etc/vxfenmode
# /sbin/init.d/vxfen stop
# /sbin/init.d/vxfen start
-
Additionally, Veritas recommends removing the
/etc/vxfendg
file if fencing is to be later reenabled.