Creating I/O fencing configuration files

Last published : Jun 11, 2026
After you set up the coordinator disk group, you must do the following to configure I/O fencing:
  • Create the I/O fencing configuration file /etc/vxfendg
  • Update the I/O fencing configuration file /etc/vxfenmode
To update the I/O fencing files and start I/O fencing
  1. On each nodes, type:
    \# echo "vxfencoorddg" > /etc/vxfendg
    Do not use spaces between the quotes in the "vxfencoorddg" text.
    This command creates the /etc/vxfendg file, which includes the name of the coordinator disk group.
    1. On all cluster nodes specify the use of DMP disk policy in the /etc/vxfenmode file.
      • lang=bash \# cp /etc/vxfen.d/vxfenmode_scsi3_dmp /etc/vxfenmode
    2. To check the updated /etc/vxfenmode configuration, enter the following command on one of the nodes. For example:
    \# more /etc/vxfenmode
  2. Ensure that you edit the following file on each node in the cluster to change the values of the VXFEN_START and the VXFEN_STOP environment variables to 1:
/etc/default/vxfen