Symantec Veritas Cluster Server One, Installation Manual

Page: 103 / 210

103 Adding shared storage and testing disks for SCSI-3 compliance
Setting up Policy Master I/0 fencing
Setting up Policy Master I/0 fencing
The procedures in this section apply to production environments, where the
Policy Master database is on shared storage.
Setting up and testing the coordinator disks
This section assumes that your Policy Master cluster includes coordinator disks
that support SCSI-3 persistent reservations and I/O fencing.
See “ Adding storage devices ” on page 98, and “ Testing disks for SCSI-3
compliance ” on page 99.
Follow the procedures in this section to set up a disk group for your coordinator
disks, and test the coordinator disk group.
Setting up a disk group for coordinator disks
Create the disk group starting with a single disk, and add other disks to the
group.
To set up a disk group for coordinator disks
1 Create a disk group with a single disk. For example, enter the following:
vxdg init vxfencoorddg sdA
Where
vxfencoorddg
is the name of the disk group, and
sdA
is the name
of the disk.
2 Add the other disks to the disk group. For example, enter the following:
vxdg -g vxfencoorddg adddisk sdB
vxdg -g vxfencoorddg adddisk sdC
Where
sdB
and
sdC
are the names of the disks.
Testing the coordinator disk group
Use vxfentsthdw to test the coordinator disk group.
To test the coordinator disk group
1 Make sure the two systems are connected to the same storage devices you
are testing.
2 Start vxfentsthdw. Enter the following. If you are not using ssh, omit the -n
option:
vxfentsthdw -n -c vxfencoorddg
3 Provide the system information at the prompts. The utility reports its
progress on each disk in the disk group.