Installation guide

Fig u re 3.6 . D u al- Po wer Fen cin g Co n f ig u rat io n
3.7.4 . T est ing t he Fence Configurat ion
As of Red Hat Enterprise Linux Release 6.4, you can test the fence configuration for each node in a
cluster with the fence_check utility.
The following example shows the output of a successful execution of this command.
[root@ host-098 ~]# fence_check
fence_check run at Wed Jul 23 09:13:57 CDT 2014 pid: 4769
Testing host-098 method 1: success
Testing host-099 method 1: success
Testing host-100 method 1: success
For information on this utility, see the fence_check(8) man page.
3.8. Configuring a Failover Domain
A failover domain is a named subset of cluster nodes that are eligible to run a cluster service in the
event of a node failure. A failover domain can have the following characteristics:
Unrestricted — Allows you to specify that a subset of members are preferred, but that a cluster
service assigned to this domain can run on any available member.
Red Hat Ent erprise Linux 6 Clust er Administ rat ion
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