Administrators can use the
vxfenadm command to test and troubleshoot fenced configurations. The
vxfenadm command includes the following options:
The key defined by VxVM associated with a disk group consists of seven bytes maximum. This key becomes unique among the systems when the VxVM prefixes it with the ID of the system. The key used for I/O fencing, therefore, consists of eight bytes.
Corrective actions to prevent data corruption describes the keys currently assigned to the disks.
To display keys currently assigned to disks
-g option of
vxfenadm displays the eight bytes of a key value in two formats. In the numeric format, the first byte, representing the node ID, contains the system ID plus 65. The remaining bytes contain the ASCII values of the key's letters. In this case, "PGR0000." In the next line, the node ID 0 is expressed as "A" and node ID 1 would be "B."