1. K

    [SOLVED] Moving cluster operation traffic to another network

    I made a mistake when I created a 5-node cluster. I added all nodes by IP to the cluster and `pvecm status` now shows: Cluster information ------------------- Name: cluster2 Config Version: 5 Transport: knet Secure auth: on Quorum information ------------------ Date...
  2. M

    Cluster management/Corosync network - does it need to be faster than 1GB?

    Hello, I'm running PVE8.0 at home. Multiple users working from home with Windows VMs. Many small Linux VMs doing lots of low-bandwidth stuff. I'm in the process of setting up a 3-node cluster for HA. All 3 nodes have identical hardware. All 3 nodes are on a 10GB fiber network. All 3...
  3. X

    [SOLVED] PVE nodes were never quorum

    After temporary network issue, the nodes doesn't comeback quorum state. I only use 2 node in this cluster. corosync.conf of each node is same. Ping is OK. MTU is OK too. After "pvecm expected 1" exected, HA page "status" show "old timestamp - dead?, ..." in master, 2 lrms. What is the log file...
  4. M

    issues getting corosync to work for the entire cluster

    Hello everyone, I currently manage a 19-node Proxmox cluster and I believe that during the weekend one of the nodes failed during the weekly VM backup job. Due to that event, the corosync service lost sync at cluster level and the nodes can't speak to each other (no quorum) and they have been...
  5. A

    Corosync Best Practice

    I'm trying to figure out the best way to ensure corosync has its own network. Please let me know if any of these points weren't ideal and why: I created a VLAN with no gateway (just a space on my switch with a unique subnet) 10.5.0.X and set all 8x of my nodes to addresses on that subnet. I...
  6. S

    pvecm qdevice Issues - Peer does not recognize and trust the CA that issued your certificate.

    Hey all, I just recently reconfigured my qdevice (I'm running a two-node setup with an external qdevice, per root@ff-pve02:~# pveversion -v proxmox-ve: 7.4-1 (running kernel: 5.15.107-2-pve) pve-manager: 7.4-4...
  7. E

    [SOLVED] Can't create cluster. Could not create /etc/corosync/authkey: No such file or directory.

    Hello, I just upgraded from 7.4 to 8, everything went ok until now. I have 2 nodes at home, which I use in a cluster. The node I am having trouble with is the one I upgraded (both are, but the other one I had to do a fresh install). I followed every step on the wiki and it all went fine, just a...
  8. S

    VIP ip for cluster to connect with proxmox API

    Hello, Cluster Proxmox 7.3+ I want to setup VIP ip for API connection. - round robin dns / etc is not an option. - VIP ip must be only on Quorate cluster and active node. Is there any proxmox / corosync option to achiewe this ?
  9. Z

    Cluster regularly losing qourum

    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...
  10. J

    Must bindnetaddr be configured for a separated cluster network?

    I was trying out the proxmox functions, and I see that it is possible (and recommended) to have a separated network for cluster communication. Therefore I added link0 and link1 with a separated network (dual stack) and on a dedicated NIC port, and link2 and link3 the addresses with has gateway...
  11. F

    qdevice and multiple setups

    Hi. Can I have multiple HA-Clusters and one qdevice for all ?. Or two qdevices for 10 clusters for example.
  12. N

    [SOLVED] Accidentally deleted corosync configs

    I have accidentally deleted all corosync configs/files on one node of my cluster. Is there an easy way to get that node back into the cluster? I have already tried to copy /etc/corosync/* from another node but without success. Thanks in advance!
  13. K

    A more detailed explanation of what bindnetaddr is?

    Apologies if this isn't the forum for this. I'm testing things out with corosync and I'm confused by "bindnetaddr". I've posted a similar question here: Though there's probably not going to be an...
  14. M

    Corosync Verständnisfrage (redundante Links)

    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...
  15. K

    [SOLVED] Is corosync traffic encrypted?

    I'm looking at using a low powered QDEVICE as my third NODE in a 2 node cluster. I don't have a local connection between the nodes or the qdevice, so I'll be relying on the WAN. Is corosync traffic encrypted, or should I consider protecting it in some way ie a VPN or other tunneling technique?
  16. E

    Proxmox VE HA issue

    Hello Dear Proxmox Forum, We had two Proxmox VE nodes and one tie breaker nodes. We have added two additional proxmox VE nodes. When we checked the services, we realized some warnings. HA is looking fine in GUI. But in the CLI, it seems like there is something wrong. We really don't know what...
  17. M

    Cluster reconfig left behind phantom VMs - possible to fix?

    Greetings everyone, we needed to do some maintenance on a four node cluster. I moved the critical systems off of it but apparently the folks who were actually doing the removal and replacement of a node neglected to remove the noncritical VMs from it before using pvecm to remove it from the...
  18. J

    Display latency among nodes

    Hey everyone! Is there a way to display the latency among nodes, meaning from the node you currently are in (either console or WebGUI) to the rest of the nodes of the cluster? Like running the ping command to each node and displaying the end result together in a quick, useful and fashionably...
  19. aPollO

    openvswitch-switch Upgrade bricht Netzwerk

    Hallo, ich habe heute gesehen, dass das Paket openvswitch-switch inzwischen aus den Proxmox Quellen ausgeliefert wird. Am 19.01. und 01.02. scheint das aber nicht der Fall gewesen zu sein. Das Paket aus den PVE Quellen triggert keinen Neustart der OVS Interfaces. Das Paket aus den Debian...
  20. J

    Proxmox Cluster not working

    Dear Proxmox Forum I'am currently facing issues with my Proxmox Cluster. I have added SystemB to my cluster created on SystemA and since then I am getting the following error message: "Connection error 596: tls_process_server_certificate: certificate verify failed" I have tried unsuccessfully...


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