quorum

I am trying to delete one of my nodes in my 2 node cluster. I have used the pvecm delnode [nodename] command and deleted the corresponding directory in /etc/pve/nodes, but the deleted node is still showing up in the WebUI. I saw in a separate post that some others have had to remove it from the...

I have an 12 node homelab that is regularly losing quorum. I think it might be due to a combination of high bandwidth activities (e.g. backups to a separate PBS server) and corosync being latency sensitive. The 12 nodes are almost all 1L PCs (e.g. Dell and Lenovo tiny/micro form factors). I...

I currently have a 2 node cluster with one quorum device set up. In terms of high availability of the VMs, everything works fine when powering off one node. The only thing that I see in that failure event is that the WebUI of the second (available) node is not showing any content anymore. Is...

Hallo, bei einem 3-Node-Cluster (A,B,C) und corosync mit jeweils link0 und link1. In der Doku steht, dass bei gleicher Priorität Corosync-Traffic priorisiert nach der link-Reihenfolge geht (niedrigste zuerst), also link0, bei Ausfall dann erst link1. 1. Wenn beim Node A der link0 ausfällt, aber...

Hi, It would be nice to allow admins of a cluster to define either: - a minimum votes required for a quorum (yes, admins might be aware of pitfalls and are prepared to deal with consequences) OR - define behaviour when quorum is not achieved - current "stop everything and just sit there" is a...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...