cluster configuration

  1. J

    Migrating a 3 cluster node to a new subnet

    Greetings! I am still fairly new to Proxmox, and I have found myself in a similar position with regards to this post here. Do I need to recreate the cluster if I want to migrate it to a new subnet? Since Changing the hostname and IP is not possible after cluster creation.
  2. H

    [SOLVED] one node cannot see other nodes in a cluster

    Hi, I got a problem. I have set up a five node cluster wIth the latest version (7.0-2) on each of the five nodes. The nodes can see each other at first. However, after about one hour, one node cannot see the other four nodes. Meanwhile, the other four nodes show very slow performance and...
  3. H

    Advice Regarding ProxMox Cluster Hardware Setup

    Hello Everyone, For quite some time I have been looking into building myself a server cluster to run my Virtual Environment that will host various types of services both internally within my homelab and some that are externally accessible. I have been looking into using ProxMox to achieve this...
  4. fgams

    Cluster - Banner Names, Sending Email and Certificates

    Hi All, I'm testing the cluster feature of ProxMox and have a question/comment. Lets say you have a master PM server and one node with the following configuration: Master: node1.domain.com 1.2.3.4 Node: node2.domain.com 1.2.3.5 Each server has a PTR (reverse dns) record and a Let's...
  5. M

    [SOLVED] Fresh Cluster installation issues

    We installed 3 identical dedicated servers (@Hetzner) with 3 networks: Network A 1GBit: Outside External IPs Network B 10GBit: Management. 192.168.51.1 - 192.168.51.3 /24 Network C 10GBit: Ceph 192.168.52.1 - 192.168.52.3 /24 All 10 servers have been installed with Proxmox 7. On Node 1 we...
  6. J

    New node not connecting to cluster

    Hello, I'm trying to figure out why my new node is not connecting to my existing cluster. PVE version is the same (6.4-1) on node1: cat /etc/pve/.members { "nodename": "node1", "version": 7, "cluster": { "name": "datacenter", "version": 28, "nodes": 4, "quorate": 1 }, "nodelist": { "node4"...
  7. A

    Remove a node from cluster and add a new one with same name

    I have a 4 nodes cluster composed by pve-01, pve-02, pve-03 and pve-04. Now I need to upgrade pve-01, so I would like to dismiss the old server and then add a more performant one. So, my quesiton is: can I remove pve-01 from cluster and then add the new server also named pve-01? Can be problems...
  8. D

    Changing cluster network interface

    Hi all, I couldn't find this so apoligies if its been asked before and if so and someone could point me to a wiki article or a forum post, I would appreciate it. I have 4 Proxmox servers in a cluster. The setup as as follows: vmbr0 --> eth1 (1GB) vmbr1 --> eth2 (1GB) vmbr2 --> eth3 (10GB)...
  9. A

    Newbie cluster configuration: 2 servers without local network and separate public IP

    Hi Please consider the following configuration: Server_1 - Public IP: X.X.X.X - Local IP: 192.168.150.1 (location A) Server_2 - Public IP: Y.Y.Y.Y - Local IP: 192.168.1.1 (location B) -> Server_1 and Server_2 are not connected through a local network -> The two IP have no dedicated domain...
  10. J

    [SOLVED] Can't remove nodes, cfs-locked 'file-replication_cfg' operation: no quorum!

    I've got a PVE 6.2-10 cluster with 3 nodes. It's using local ZFS with storage replication between nodes. A number of things are changing in the environment, so I need to break the cluster apart and run everything on the 1 node. I moved everything to node 1. I then turned off nodes 2 and 3. At...
  11. I

    Multiple cluster in corosync

    Hello all, May be someone can help, how to add second PVE cluster (as observer) in already exist PVE Cluster. How i can add here second separate CLUSTER-2? # cat /etc/pve/corosync.conf nodelist { node { name: n1 nodeid: 1 quorum_votes: 1 ring0_addr: n1 mcastaddr...
  12. J

    Newb Question about clustering

    Hello Folks, I'm just getting started with Proxmox, upgraded my "home server" and took unraid virtual inside Proxmox yesterday and it's working great so far. I spent the afternoon testing and playing with LXC with nesting (several LXC containers with nesting and dockers in swarm mode) and its...
  13. N

    Erstelltes Cluster entfernen

    Hallo, ich habe auf einem Proxmox Server ein Cluster erstellt. Jetzt habe ich das Problem das die Meldung kommt dass man das Cluster nicht auf seinem eigenen Server entfernen kann. Finde im Netz auch nicht nach einer Lösung was dies betrifft, nur wie man einen Server aus einem Cluster...
  14. F

    Cluster Management Server

    So here is the plan: I want to build a Proxmox server cluster and currently have 2 virtualization servers. The thing is, these are test machines and I tinker with them a lot. So they are reinstalled from time to time. My plan is: I want to get a "low power" Atom based 1U server and install...
  15. D

    Sync issues after Lets Encrypt Renewal

    Hi all, I have an issue where whenever my 2 node PMG cluster renews the certificates the cluster stops syncing. On the master I get this: pmgcm status NAME(CID)--------------IPADDRESS----ROLE-STATE---------UPTIME---LOAD----MEM---DISK swarmx1(1) 192.168.11.218 master A 44 days...
  16. michael.schaefers

    HA migration on node shutdown: Selection of failover nodes?

    I am evaluating an 5 node cluster (nodeA to nodeE) where every VM is bound to run on a specific node by assigning a specific HA group I have for every node. Example: group: prefer-nodeA nodes nodeA:1 nofailback 0 restricted 0 my datacenter.cfg contains ha: shutdown_policy=migrate...
  17. D

    Cluster created: No access to node and no cluster join possible

    Hi guys, I created a new cluster with v6.2 with a separate cluster network. The cluster network is within an own VLAN. The cluster creation with two nodes was successful and I can see the two nodes in the web interface with a green checkmark. The problem now is that there are is no possibility...
  18. L

    Proxmox cluster not working (as expected)

    Hello, I have 2 machines in a cluster and awaiting to add the third one. Both installation are identical (PVE 6.1-7). Both have a private network (1Gbit, awating to upgrade to 10Gbit). Creating cluster and adding nodes went smoothly (no firewall, ping works ok, quorum achieved and checked with...
  19. D

    proxmox cluster, phantom node

    Hi, We want to delete our old node from proxmox cluster. The problem is, proxmox GUI is showing the old node in datacenter, but pvecm nodes does not list it. How can we get rid of the old node in such a situation?
  20. T

    Proxmox CEPH and VM cluster network configuration

    I have got 5 nodes with 2 physical NICs connected on each. I have assigned each node (management) a public IP address on my network (10.140.79.X) using the default Proxmox setup and created a Cluster. I plan to create a second bridge for private network for VMs. I also want to install CEPH to...