@little-autumn-44758 To not have downtime nor risk of corruption is safe to do it in two stages. You can start adding 2 VMS to the etcd/control plane, so you have temporarily 5 nodes. Then remove 2 physical nodes, so you still have a quorum over one physical and two virtual. Finally, add the thrid VM, temporarily, you won't have a quorum, but, once the third VM is added to the cluster, you can just remove the last physical node.