Create cluster with running VM on first node.

[LM-MAE]

Hello,
till now I had a single PVE host with about 20 guest VMs.
Now I bought a second server and wanted to create a cluster.
So the situation is:
Node1: 20 Vm running
Node2: 0 Vm
Can I create the cluster from node1, add node2 without losing the functionality of the VMs running in node1?

Thanks

 

[itNGO]

Yes,.. form Cluster on first node, where your VMs run... add the node without VMs to the cluster....

 

[VictorSTS]

Yes, you can create the cluster in node1, then add node2.

What you can't do is create the cluster in node2 and then add node1 to that cluster: when joining a cluster, the node must not have any configuration.

Before you create your cluster, be aware about 2 node clusters in PVE, there are lot's of threads about it and why you don't have quorum with one node and what that means. Also read about QDevice [1] and how it can help with this.

[1] https://pve.proxmox.com/wiki/Cluster_Manager#_corosync_external_vote_support