$FWDIR/bin/clusterXL_admin is a special shell script that not only makes the task of adding a new Critical Device easier, but also checks the change in member’s state and provides the user with the feedback.
This script registers a Critical Device called “admin_down”.
The syntax for bringing the cluster member Down is:
[Expert@HostName]# clusterXL_admin down [-p]
The syntax for bringing the cluster member Up is:
[Expert@HostName]# clusterXL_admin up [-p]
[-p] – optional flag, stands for “permanent” – operation will survive the reboot.
Also CCMA#40’s blog Expert Mode post has more details to explain some other commands to do force a failover (cluster/vrrp).
Here is a usage example in my environment:
CP-DMZ> cphaprob stat
Cluster Mode: New High Availability (Active Up)
with IGMP Membership
Number Unique Address Assigned Load State
1 (local) 1.1.1.1 0% Down
2 1.1.1.2 100% Active
CP-DMZ> expert
Enter expert password:
You are in expert mode now.
[Expert@CP-M-DMZ]# clusterXL_admin up -p
Setting member to normal operation …
Member current state is Standby
