hai.. I have question. I have 5 nodes that join on 1 cluster. all working properly till the day we had a little renovation work in server room. so I shut down all the nodes one by one cut off electrical power. and went I turn in on - on all nodes I got warning Cluster Not Ready - No Quorum. I can't start all the vm even on 1 nodes. cause it is very urgent situation, I used this solution to get the vm on https://pve.proxmox.com/wiki/Cluster_Manager#pvecm_separate_node_without_reinstall . then I can start the vm. after that I need to backup my vm but 1st time i can't cause of the quorum status (BLOCKED). so I did this and then I can backup the data my question are : 1. cause of Cluster Not Ready - No Quorum, it's because the connection is off? or? how to prevent the problem? 2. its any solustion my nodes can back to the cluster ? or i need to install proxmox again from the beging again all the nodes and put it back into the cluster. Thanks.