quorum

  1. <50% & Quorum?

    Hey all, I have a cluster of 7 SFF PCs running as a PVE HA cluster backed by NFS storage (on an 8th machine, also in the cluster). I'm on "time-of-use" electricity costs, and would love to be able to kill off many of the SFF nodes during "peak" hours to save on energy costs, or if compute power...
  2. [quorum] Quorum LARGE cluster minimum online servers? any workaround?

    Hi all, As I understands it, for a cluster to be accessible from the GUI, we need half of the servers running +1 I have a cluster of 10 servers and I find it pretty annoying to be forced to keep 6 servers On all the time. Is there a way to get only 3? Under low month workload I could keep...
  3. Qdevice for Non-HA cluster?

    So I'm pretty sure I know the answer. I'm building a very small cluster for now. Two nodes. One hosts the NAS and SAN and a few other 'infrastrcture-y' things. The other hosts most of the VMs that I want to boot *from* the SAN. I can manually migrate them from the service node to the infra...
  4. 9 node setup - 4 without quorum, 1 run out of space in /boot

    Hi, This morning I found that one of my nodes had run out of space in /boot, I removed some old kernels but I can't start any VMs on the node which run out of space. There are 3 others that show as offline in the GUI but they are actually online. When I try to restart the cluster on the node...
  5. Warum drei Nodes für HA bei geteiltem Storage?

    Hallo werte Proxmox-Gemeinde, bei meinem vorherigen Arbeitgeber haben wir bereits 2 Proxmox-Cluster mit drei Nodes und via iSCSI geteiltem Storage aufgebaut. Den Satz "Man braucht mindestens drei Nodes für ein zuverlässiges Quorum" und ohne Quorum läuft der HA-Betrieb nicht habe ich quasi als...
  6. Could not log into web GUI while other node was shut down?

    I have a 4-node cluster with nodes A, B, C, and D. I recently had to take nodes A and B offline to install a new NIC in them. I wanted to watch their status on the web GUI of node C while I waited for them to boot back up, so after I shut down nodes A and B, I pulled up node C's web GUI. I was...
  7. How would Ceph/Proxmox handle a switching failure

    We've been looking at a new setup that has three nodes. They will be running Proxmox and Ceph in a hyperconverged config. Each node has theoretical switch redundancy using LACP. However, not for the first time our providers switching has had some kind of failure with a switch and LACP standby...
  8. Rogue Cluster Node

    Hello Everyone! I have a 4 server cluster scenario, that went running fine for 700+ days, but eventually we need to update it, mostly that we want to use PBS and since we are on version 5.4x we want to roll up the servers to version 6. I made an offline lab with the same configurations from...
  9. Lost quorum while all nodes are online

    Hello there, last week I updated my PVE two node Cluster, but after rebooting since a while i ran into some problems: Both nodes currently are online, but keep complaning that there is no quorum. In the webui this looks like this : Anyway from the webui of both nodes i get the actual...
  10. 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...
  11. Last man standing

    Hi I would like to set up a cluster with 4, max. 5 Nodes. The catch is that during most times only one or two nodes will be running. In my attempts so far I had often had problems with not having quorum even when using a qdevice. The reason for the cluster is that if I need the extra power I...
  12. [SOLVED] Proxmox 5.4 to 6.x - Corosync 3 - No quorum anymore

    Hello Proxmox community ! :) I inherited a Proxmox 2-nodes setup at my new workplace and since it's running the EOL 5.4.15, I thought I would take a look at how to upgrade it to 6.x which is supported. So I started the procedure here https://pve.proxmox.com/wiki/Upgrade_from_5.x_to_6.0 and...
  13. Disabled / enabled spontaneously 1 node proxmox

    Hi! I have a proxmox cluster of 3 nodes, (node1, node2, node3) but 2 days ago I started to see a picture of how the cluster is losing node2. This node is active, it works, the VM continues to work on it, I have access via ssh and web. All nodes see it on the network. This problem prevents VM...
  14. Made mistake in corosync.conf; now cannot edit

    I have (had) a 3 node Proxmox VE 6.2-11 and Ceph cluster. I'm modifying my config after install and some light use. Ceph is now on its own 10Gx2 LAN. I decided to dedicate a 1Gb interface and create a VLAN for corosync and attempted to modify corosync.conf before understanding exactly what...
  15. Smaller size OSD - bigger VM, what happening? Ceph OSD, replication settings.

    Hi! Please help me understand for be clear: Example for sure, all works fine, Ceph health OK, VMs are stored in Ceph, by default only node1 running a VMs: node1: 1000 GB OSD (1 HDD) node2: 1000 GB OSD (1 HDD) node3: 1000 GB OSD (1 HDD) node4: 500 GB OSD (1 HDD) node5: 500 GB + 500 GB OSD (2...
  16. 2 Node Cluster, need to remove 1 node

    Hello, I currently run Proxmox 6.1-7 with a few virtual machines including pfsense. I noticed the cluster option and it seemed intriguing so I created a cluster to try to learn more about it. I have my main node with all my VMs (called pve) and a second node (called proxmox). I need to remove...
  17. Cluster not quorate - extending auth key lifetime!

    Hello together, we have a 2-node cluster without HA, named pve1 and pve2. pve1 replicates VMs to pve2. Both System run well until last week. Both Systems run with Proxmox VE 6.0-2, PVE-Manager 6.0-4, PVE-Kernel 6.0-5 Now we get the following error messages on pve1: on pve2: pve1 is marked...
  18. Lost quorum in 3 node cluster

    Hello, i have a 3 node cluster, one node went offline tomorrow, and one more this morning. One is Broken but the second one come back onli9ne after reboot. Now the cluster ha no quorum ( Two nodes ). How can i do to restore the quorum on Two Nodes ? I hav tried: systemctl restart pve-cluster...
  19. [SOLVED] Node configuration

    Hi all. I wanna ask a few questions: 1. if proxmox nodes in HA cluster must have the same specs (ram, cores). Ive read the documentation for HA but im not sure if it is implied that nodes must have the same specs. i will create a test cluster anyways this week, but would save me time if i have...
  20. [SOLVED] Cluster lost quorum after last update

    Hello, We are running a simple cluster of two nodes ( pve 5.4.13). After last update ans reboot of the two nodes, cluster lost quorum after few minutes. We made several tests and tried many solutions showed in this forum with no luck. omping command ran on two nodes returned this ...

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