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Configuration Explained
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4.6.3. Replacing a Heartbeat Node
The seven-step guide to replacing an existing cluster node:
Make sure the old node is completely stopped
Give the new machine the same hostname as the old one
Go to an active cluster node and look up the UUID for the old node in
/var/lib/heartbeat/hostcache
Install the cluster software
Copy
ha.cf
and
authkeys
to the new node
On the new node, populate it’s UUID using
crm_uuid -w
and the UUID from step 2
Start the new cluster node
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4.6.2. Removing a Heartbeat Node
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Chapter 5. Cluster Resources