1.2. Installing Pacemaker configuration tools
You can use the following
yum installcommand to install the Red Hat High Availability Add-On software packages along with all available fence agents from the High Availability channel.
yum install pcs pacemaker fence-agents-all
Alternately, you can install the Red Hat High Availability Add-On software packages along with only the fence agent that you require with the following command.
yum install pcs pacemaker fence-agents-model
The following command displays a listing of the available fence agents.
rpm -q -a | grep fencefence-agents-rhevm-4.0.2-3.el7.x86_64 fence-agents-ilo-mp-4.0.2-3.el7.x86_64 fence-agents-ipmilan-4.0.2-3.el7.x86_64 ...
gfs2-utilspackages are part of ResilientStorage channel. You can install them, as needed, with the following command.
yum install lvm2-cluster gfs2-utils
After you install the Red Hat High Availability Add-On packages, you should ensure that your software update preferences are set so that nothing is installed automatically. Installation on a running cluster can cause unexpected behaviors.