I have a 3 node Proxmox cluster and I'm wanting to add a fourth node in a different location in the building with it's own UPS that can act as a "Node of last resort". Eg, the main server rack fails (UPS, switch or extended power outage) but this node will have its own UPS that can run for a very extended period and will be the "last survivor". My question is how would a Proxmox cluster react to this? 4 Nodes in the cluster, 1 being the last resort node, 3 nodes suddenly disappear and the last resort has several VM's replicated to it configured for HA. Seeing itself as the last survivor would the fourth node proceed to failover with HA? Or would it panic that it cannot determine Quorum? Interested to hear opinions.