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

If a disk is ready for I/O fencing on each node, the utility reports success:

ALL tests on the disk /dev/vx/rdmp/c1t1d0 have PASSED

The disk is now ready to be configured for I/O Fencing on node

galaxy

...

Removing test keys and temporary files, if any ...

Run the vxfentsthdw utility for each disk you intend to verify.

Testing the shared disks listed in a file using the vxfentsthdw

-f option

Use the -f option to test disks that are listed in a text file. Review the following

example procedure.

To test the shared disks listed in a file

Create a text file disks_test to test two disks shared by systems galaxy and

nebula that might resemble:

galaxy /dev/vx/rdmp/c2t2d1 nebula /dev/vx/rdmp/c3t2d1

where the first disk is listed in the first line and is seen by galaxy as

/dev/vx/rdmp/c2t2d1 and by nebula as /dev/vx/rdmp/c3t2d1. The other disk,

in the second line, is seen as /dev/vx/rdmp/c2t2d2 from galaxy and

/dev/vx/rdmp/c3t2d2 from nebula. Typically, the list of disks could be

extensive.

To test the disks, enter the following command:

# vxfentsthdw -f disks_test

The utility reports the test results one disk at a time, just as for the -m option.

Testing all the disks in a disk group using the vxfentsthdw -g

option

Use the -g option to test all disks within a disk group. For example, you create a

temporary disk group consisting of all disks in a disk array and test the group.

Note: Do not import the test disk group as shared; that is, do not use the -s option.

113Administering SF Oracle RAC and its components

Administering I/O fencing