Veritas Storage Foundation 5.1 SP1 Cluster File System Administrator"s Guide (5900-1738, April 2011)

The disk /dev/vx/rdmp/c1t1d0 is ready to be configured for
I/O Fencing on node galaxy
If the utility does not show a message stating a disk is ready, verification has
failed.
■ If the disk you intend to test has existing SCSI-3 registration keys, the test
issues a warning before proceeding.
About the vxfentsthdw command options
Table 3-2 describes the methods that the utility provides to test storage devices.
Table 3-2
vxfentsthdw options
When to useDescriptionvxfentsthdw option
Use when remsh is used for
communication.
Utility uses remsh for
communication.
-n
Use during non-destructive
testing.
See “Performing
non-destructive testing on the
disks using the -r option”
on page 76.
Non-destructive testing. Testing
of the disks for SCSI-3
persistent reservations occurs
in a non-destructive way; that
is, there is only testing for reads,
not writes. May be used with -m,
-f, or -g options.
-r
When you want to perform TUR
testing.
Testing of the return value of
SCSI TEST UNIT (TUR)
command under SCSI-3
reservations. A warning is
printed on failure of TUR
testing.
-t
By default, the script picks the
DMP paths for disks in the
diskgroup. If you want the script
to use the raw paths for disks in
the diskgroup, use the -w option.
Use DMP devices.
May be used with -c or -g
options.
-d
With the -w option, the script
picks the raw paths for disks in
the diskgroup. By default, the
script uses the -d option to pick
up the DMP paths for disks in
the disk group.
Use raw devices.
May be used with -c or -g
options.
-w
73Administering Storage Foundation Cluster File System and its components
Administering I/O Fencing