The easiest way I have found to add monitors is to add them to the initial
monitors list which will create them all at the same time.
After running "ceph-deploy new {primary-node-name}"
You will need to edit the ceph.conf file to add the other additional monitors.
Edit the lines “mon_initial_members” and “mon_host” to contain all of the nodes
hostnames/IPs that will be hosting monitor nodes
ex: mon_initial_members = icephnode01, icephnode04
ex: mon_host = node01.IP, node04.IP
Then after installing ceph on each of the nodes with ceph-deploy you need only
run
"ceph-deploy mon create-initial"
This will deploy the monitor daemon to all hosts in the mon_initial_members
group and they will then be able to communicate with each other.
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