Veritas Storage Foundation 5.1 SP1 for Oracle RAC Administrator"s Guide (5900-1512, April 2011)

The warning implies that the local cluster with the cluster ID 57069 has keys.
However, the disk also has keys for cluster with ID 48813 which indicates that
nodes from the cluster with cluster id 48813 potentially use the same coordinator
disk.
You can run the following commands to verify whether these disks are used by
another cluster. Run the following commands on one of the nodes in the local
cluster. For example, on galaxy:
galaxy> # lltstat -C
57069
galaxy> # cat /etc/vxfentab
/dev/vx/rdmp/disk_7
/dev/vx/rdmp/disk_8
/dev/vx/rdmp/disk_9
galaxy> # vxfenadm -s /dev/vx/rdmp/disk_7
Reading SCSI Registration Keys...
Device Name: /dev/vx/rdmp/disk_7
Total Number Of Keys: 1
key[0]:
[Numeric Format]: 86,70,48,49,52,66,48,48
[Character Format]: VFBEAD00
[Node Format]: Cluster ID: 48813 Node ID: 0 Node Name: unknown
Where disk_7, disk_8, and disk_9 represent the disk names in your setup.
Recommended action: You must use a unique set of coordinator disks for each
cluster. If the other cluster does not use these coordinator disks, then clear the
keys using the vxfenclearpre command before you use them as coordinator disks
in the local cluster.
See “About the vxfenclearpre utility” on page 119.
Clearing keys after split-brain using vxfenclearpre command
If you have encountered a preexisting split-brain condition, use the vxfenclearpre
command to remove SCSI-3 registrations and reservations on the coordinator
disks as well as on the data disks in all shared disk groups.
See “About the vxfenclearpre utility” on page 119.
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