Creating a PVE cluster and adding a cluster member in a remote network
Creating a datacenter cluster and adding a cluster member in PVE is easy and straight forward. This describes how to do this. Notice, just adding a cluster member does not activate any HA related magic. This is done in another blog entry.
Create a cluster
Choose your node that will be the primary node and login to it. Go to Datacenter and then to Cluster and select Create Cluster. A window appears that wants to know the Cluster Name and the Cluster Network. Enter a name and the link(s) that will be used to connect to the other member(s).
Adding cluster member
Joining the cluster is as easy as creating the cluster. Check for the cluster member to have connectivity to the primary node via port 22/tcp (ssh, generic cluster actions), 5404 and 5405/udp (corosync), and 60000-60050/tcp (live migration, not needed now) (see here). Connectivity is also given if the members are in different network segments and the required ports are reachable! Also check if the cluster member can resolv each others domain names. This is not necessary, but good practice. Now, on the soon to be cluster member, go again to Datacenter and then to Cluster and select Join Cluster. It requires the join information, which you get at the same menu, but at the primary node. You can just copy paste the information. The next step presents you the parsed parameters. Check them and enter the root password of the primary node. Once you press OK you need to wait and relax. You are done. Now your shared storages (e.g. PBS storage) is also available to the second member and backups start to function on the second member as well.
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Last update: 2025-07-16