Testing the coordinator disk group using the -c option of vxfentsthdw


Testing the coordinator disk group using the -c option of vxfentsthdw
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Use the vxfentsthdw utility to verify disks are configured to support I/O fencing. In this procedure, the vxfentsthdw utility tests the three disks, one disk at a time from each node.

The procedure in this section uses the following disks for example:

From the node sys1, the disks are seen as /dev/rhdisk75, /dev/rhdisk76, and /dev/rhdisk77.
From the node sys2, the same disks are seen as /dev/rhdisk80, /dev/rhdisk81, and /dev/rhdisk82.

Note:

To test the coordinator disk group using the vxfentsthdw utility, the utility requires that the coordinator disk group, vxfencoorddg, be accessible from two nodes.

To test the coordinator disk group using vxfentsthdw -c

Use the vxfentsthdw command with the -c option. For example:
```
# vxfentsthdw -c vxfencoorddg
```

Enter the nodes you are using to test the coordinator disks:

Enter the first node of the cluster: sys1
Enter the second node of the cluster: sys2

Review the output of the testing process for both nodes for all disks in the coordinator disk group. Each disk should display output that resembles:

ALL tests on the disk /dev/rhdisk75 have PASSED.
The disk is now ready to be configured for I/O Fencing on node 
sys1 as a COORDINATOR DISK.

ALL tests on the disk /dev/rhdisk80 have PASSED.
The disk is now ready to be configured for I/O Fencing on node 
sys2 as a COORDINATOR DISK.

After you test all disks in the disk group, the vxfencoorddg disk group is ready for use.

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