Proxmox VE

Remove a host from cluster

systemctl stop pve-cluster
systemctl stop corosync

Start local cluster

pmxcfs -l


Delete corosync config
rm /etc/pve/corosync.conf
rm -r /etc/corosync/*


Restore normal status
killall pmxcfs
systemctl start pve-cluster
rm /var/lib/corosync/*



On the working node remove the removed node
pvecm delnode oldnode
pvecm expected 1

Ports needed for VE-cluster

8006/TCP
22/TCP
5405/UDP for corosync


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