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

To verify that the nodes see the same disks
1
Verify the connection of the shared storage for data to two of the nodes on
which you installed SFCFS.
2
From node A, enter the following command:
# vxfenadm -i /dev/vx/rdmp/c2t13d0
Vendor id : EMC
Product id : SYMMETRIX
Revision : 5567
Serial Number : 42031000a
The same serial number information should appear when you enter the
equivalent command on node B using the /dev/vx/rdmp/c2t11d0 path.
On a disk from another manufacturer, Hitachi Data Systems, the output is
different and may resemble:
# vxfenadm -i /dev/vx/rdmp/c2t1d0
Vendor id : HITACHI
Product id : OPEN-3 -HP
Revision : 0117
Serial Number : 0401EB6F0002
Refer to the vxfenadm(1M) manual page for more information.
About the vxfenclearpre utility
You can use the vxfenclearpre utility to remove SCSI-3 registrations and
reservations on the disks.
See “Removing preexisting keys” on page 84.
Removing preexisting keys
If you encountered a split-brain condition, use the vxfenclearpre utility to remove
SCSI-3 registrations and reservations on the coordinator disks as well as on the
data disks in all shared disk groups.
You can also use this procedure to remove the registration and reservation keys
created by another node from a disk.
Administering Storage Foundation Cluster File System and its components
Administering I/O Fencing
84