Veritas Storage Foundation 5.1 SP1 for Oracle RAC Administrator"s Guide (5900-1512, April 2011)

Table 2-4
vxfentsthdw options (continued)
When to useDescriptionvxfentsthdw option
For testing several disks.
See “Testing the shared disks
listed in a file using the
vxfentsthdw -f option”
on page 113.
Utility tests system/device
combinations listed in a text file.
May be used with -r and -t
options.
-f filename
For testing many disks and
arrays of disks. Disk groups may
be temporarily created for
testing purposes and destroyed
(ungrouped) after testing.
See “Testing all the disks in a
disk group using the
vxfentsthdw -g option”
on page 113.
Utility tests all disk devices in a
specified disk group.
May be used with -r and -t
options.
-g disk_group
Testing the coordinator disk group using vxfentsthdw -c option
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 galaxy, the disks are /dev/vx/rdmp/c1t1d0,
/dev/vx/rdmp/c2t1d0, and /dev/vx/rdmp/c3t1d0.
■ From the node nebula, the same disks are seen as /dev/vx/rdmp/c4t1d0,
/dev/vx/rdmp/c5t1d0, and /dev/vx/rdmp/c6t1d0.
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.
109Administering SF Oracle RAC and its components
Administering I/O fencing