Symantec Veritas Cluster Server 5.0 Update 3, Installation Manual

Page: 97 / 176

The same serial number information should appear when you enter the
equivalent command on node B using the /dev/sdy path.
On a disk from another manufacturer, Hitachi Data Systems, the output is
different and may resemble:
# /sbin/vxfenadm -i /dev/sdz
SCSI ID=>Host: 2 Channel: 0 Id: 0 Lun: E
Vendor id : HITACHI
Product id : OPEN-3
Revision : 0117
Serial Number : 0401EB6F0002
Testing the disks using vxfentsthdw utility
This procedure uses the /dev/sdx disk in the steps.
If the utility does not show a message that states a disk is ready, the verification
has failed. Failure of verification can be the result of an improperly configured
disk array. The failure can also be due to a bad disk.
If the failure is due to a bad disk, remove and replace it. The vxfentsthdw utility
indicates a disk can be used for I/O fencing with a message resembling:
The disk /dev/sdx is ready to be configured for I/O Fencing on
node galaxy
For more information on how to replace coordinator disks, refer to the Veritas
Cluster Server User's Guide.
To test the disks using vxfentsthdw utility
1 Make sure system-to-system communication functions properly.
See “Setting up inter-system communication” on page 44.
After you complete the testing process, remove permissions for
communication and restore public network connections.
See “Removing permissions for communication” on page 103.
2 From one node, start the utility.
Do one of the following:
■
If you use
ssh
for communication:
# /opt/VRTSvcs/vxfen/bin/vxfentsthdw
97 Configuring VCS clusters for data integrity
Preparing to configure disk-based I/O fencing