Before you test the disks that you plan to use as shared data storage or as coordinator disks using the vxfentsthdw utility, you must verify that the systems see the same disk.
To verify that the nodes have access to the same disk
Verify the connection of the shared storage for data to two of the nodes on which you installed VCS.
Ensure that both nodes are connected to the same disk during the testing. Use the vxfenadm command to verify the disk serial number.
/sbin/vxfenadm -i diskpath
Refer to the vxfenadm (1M) manual page.
For example, an EMC disk is accessible by the /dev/vx/rdmp/c1t1d0 path on node A and the /dev/vx/rdmp/c2t1d0 path on node B.
# /sbin/vxfenadm -i /dev/vx/rdmp/c1t1d0
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/c2t1d0 path.
On a disk from another manufacturer, Hitachi Data Systems, the output is different and may resemble:
# /sbin/vxfenadm -i /dev/vx/rdmp/c3t1d0
Vendor id : HITACHI Product id : OPEN-3 -HP Revision : 0117 Serial Number : 0401EB6F0002