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2.5. Install the Cluster Software

Fire up a shell on both nodes and run the following to install pacemaker, and while we’re at it, some command-line tools to make our lives easier:
# yum install -y pacemaker pcs psmisc policycoreutils-python


This document will show commands that need to be executed on both nodes with a simple # prompt. Be sure to run them on each node individually.


This document uses pcs for cluster management. Other alternatives, such as crmsh, are available, but their syntax will differ from the examples used here.