I had 2 nodes, fbc158 and fbc10 . fbc158 was added first. I was having trouble with fbc10 , so i deleted it and rebooted that node. I figured I could try to add again.. Code: ssh fbc158 pvecm delnode fbc10 when I try to re-add the node, from the node I want to readd Code: ssh fbc10 pvecm add 10.100.100.158 authentication key already exists on the one remaining node , fbc10 still shows up: Code: ssh fbc158 pvecm n Node Sts Inc Joined Name 1 M 16 2011-10-02 10:21:07 fbc158 2 X 24 fbc10 root@homenet-fbc158 ~ # pvecm status Version: 6.2.0 Config Version: 3 Cluster Name: fbcandover Cluster Id: 37452 Cluster Member: Yes Cluster Generation: 28 Membership state: Cluster-Member Nodes: 1 Expected votes: 1 Total votes: 1 Node votes: 1 Quorum: 2 Activity blocked Active subsystems: 6 Flags: Ports Bound: 0 11 Node name: fbc158 Node ID: 1 Multicast addresses: 22.214.171.124 Node addresses: 10.100.100.158 could someone tell me which key to delete? or what to do to re add fbc10 ? ps I tried to follow http://pve.proxmox.com/wiki/Proxmox_VE_2.0_Cluster , but probably my issues are due to operator error.