Creating I/O fencing configuration files


Creating I/O fencing configuration files
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After you set up the coordinator disk group, you must do the following to configure I/O fencing:

To update the I/O fencing files and start I/O fencing

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.
On all cluster nodes depending on the SCSI-3 mechanism, type one of the following selections:
- For DMP configuration:
```
  # cp /etc/vxfen.d/vxfenmode_scsi3_dmp /etc/vxfenmode
```
- For raw device configuration:
```
  # cp /etc/vxfen.d/vxfenmode_scsi3_raw /etc/vxfenmode
```
To check the updated /etc/vxfenmode configuration, enter the following command on one of the nodes. For example:
```
# more /etc/vxfenmode
```
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

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