Ensure that you have added mediator hosts as described in How to Add Mediator Hosts.
Display the status of the mediator data.
# medstat -s setname
Specifies the disk set name
See the medstat(1M) man page for more information.
If Bad is the value in the Status field of the medstat output, repair the affected mediator host.
Go to How to Fix Bad Mediator Data.
Go to How to Create Cluster File Systems to create a cluster file system.