cluster

  1. Backup on another Node

    Hi Guys, I have a few VMs running on my main server that I would like to back up. For this I got a second, weaker Intel NUC, on which I also installed Proxmox and connected an external USB hard drive for backups. This NUC should only serve as storage space a small NAS that I need for other...
  2. Cluster wieder löschen

    Hi, ich habe eher aus Experimentierlust mit einem Proxmox-Knoten einen Cluster erstellt. Ich möchte umziehen auf eine neue Hardware und das schien mir eine gute Idee zu sein :-(. Nun habe ich ein Cluster mit genau einem Knoten. Wie setze ich diese Umgebung wieder so zurück, dass die...
  3. Proxmox Cluster Questions.

    Hey, Maybe you can help me with some questions. I would like to set up a Proxmox Cluster in Hetzner (2 nodes + Proxmox backup (which will act as a Quorum for the cluster)). Setup: - The 2 nodes will be in the same datacenter and the backup will be in different datacenter (we can live for a...
  4. Proxmox 6.2 broken cluster

    Hi guys, I am having this specific problem, looking through the forum I found pieces that relate to my problem but not the exact same issue. What I did: I had a 2 node cluster running, I wanted to join a 3rd node, problem was the 3rd node could not communicate on the replication network. I...
  5. High Availability with 3 nodes, but only 1 remaining when no main AC power

    Hi, relatively new to PVE in a Home Lab. I already have successfully set up a 3-node cluster and can manage the HA and zfs replication with no issues. Question 1: Up to having 2 nodes down due to lack of power, I am left with 1 node that can work on UPS when power is down, and in that case it...
  6. Node can't join existing Cluster

    Hey Proxmox Community, i have been using my Cluster since a few weeks and everything worked fine. Last week i added a new node (cluster-server-4) no problems. Today i wanted to add a new node (cluster-server-5), it joins the cluster but isnt aviable. I have already updated all nodes to the...
  7. Adding node to cluster crash all nodes from it

    Hi, tonight is the second time I face a huge problem when trying to add a node to my existing cluster. My cluster contains approximately 15 nodes, I use CEPH as storage and everything is working pretty good. All our nodes and "future" nodes FQDN are contained in /etc/hosts like : -...
  8. Join cluster from different network

    Hello i want to ask i've got 4 nodes on my cluster on ip 10.10.30.x and i got new hardware on new location using ip 10.10.50.x does it possible 10.10.50.x join cluster on 10.10.30.x? currently 10.10.50.x only 1 device and i still not create the cluster yet and i already read the documentation...
  9. new 4 node proxmox ve 6.3 ceph cluster config

    I have 4 node of identical spec. HP DL20 Xeon E2278G 64G RAM 6 of PM883 480G SSD(Ceph OSD) 1 of Intel DC3700 800G PCI-e NVMe Card(Proxmox itself) 1 of Mellanox Connectx 3 Dual 40G card (FW. 2_36_5000 HP OEM, Ethernet Mode) Internal network config also identical. iLO : 192.168.88.201~204...
  10. florian-n

    [SOLVED] Cluster template "VM with name = debian-10 does not exist in cluster"

    I am experimenting a while with different configurations and setups trying to use a central VM template for the whole cluster. We are using a cluster with enabled Ceph integration. Currently the template VM is being installed on a RBD storage which is available to every node. Unfortunately the...
  11. 1 Node Proxmox trigger alarm Health Warning Status "clock skew detected on mon.host"

    Hi Proxmox. Fyi, one (1) of our Proxmox Node (Host) trigger alarm Health Warning Status "clock skew detected on mon.host" on CEPH today starting on (26 mac 2021 6.27AM). Fyi, there are no changes in configuration but suddenly it trigger alarm "clock skew detected on mon.host". Kindly advise me...
  12. Unable to join my second Node to my cluster

    Hello, I am relatively new to proxmox. I have had one node for 8 months now... I understand what I need to to make VMs and Containers make new directories, do backups etc. It's not my goal to be a proxmox expert or use the bleeding edge tech, I know there is a lot of cool stuff that I'm not...
  13. ZFS and Ceph on same cluster

    Hi All just wondering is it possible to have a ProxMox cluster with both local ZFS data store per host + Ceph on the same cluster? example. 5 or 6 hosts 10 bays per host 4 bays for ZFS mirror 6 bays for Ceph is it possible to have this mixed storage design in a single cluster? From a...
  14. [SOLVED] Broken Pipe Lessons Learned (node naming and ssh_known_hosts fumble)

    Just sharing a possible issue some people may run into in the future experiencing a broken pipe when migrating a VM, during a replicate operation, etc. BACKGROUND I recently upgraded the CPU and motherboard for my alternate node. There were some issues during the upgrade and considering I had...
  15. Can't manage node

    Hello i want to add node from other proxmox / join node Condition : Different subnet detected the following error(s): * authentication key '/etc/corosync/authkey' already exists * cluster config '/etc/pve/corosync.conf' already exists * corosync is already running, is this node already in a...
  16. Volume Sizing and Usage question

    Dear Forum Members, how should I partition the main disks of my proxmox nodes? I am in the process of setting up a small 3 node Proxmox Cluster (3x Intel NUC with 8GB RAM and 240 GB SSD each, one of them with an additional 512GB SSD). I want to use the cluster for running (home lab) Kubernetes...
  17. 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...
  18. Two out of Three nodes offline after network outage

    I have a three node hyperconverged cluster running PVE 6.2-6 and CEPH. After recovering from network problems involving VLANs reverting to an older configuration and waiting overnight, only one of the three nodes shows that it's online. A Fencing message went out this morning about one of the...
  19. Whole cluster randomly rebooted twice (maybe corosync?)

    Dear all, I am currently dealing with a problem in a hyperconverged (ceph) where the whole cluster reboots seemingly at random. Every single one (of the total of seven) node resets at the same time. I am suspecting corosync to not be able to communicate properly. This problem has only popped up...
  20. Non-PVE Ceph Cluster Member

    I'm running a cluster in PVE and ceph as my main storage as is the norm these days, but for reasons that may or may not be common, I don't want to run PVE on all my guests or several of my physical machines. I would like to be able to install just enough software however to have Proxmox VE...

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