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    Hostnames changed to uppercase caused cluster outage after reboot (PVE 5.3)

    Hello, We are running Proxmox 5.3 on a cluster (did not had time to upgrade yet this one) and last weekend we had a planned downtime (changed switches). After starting up, nothing was working, the web ui came up, login failed with "No Proxmox VE services running", no VMs were started, cluster...
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    Can i prevent mixed 6/7 PVE cluster from changing storage/backup config to the new version?

    Hello. We have a 5 member cluster that originally had been 3 servers running PVE 6.1. Now we added 2 more servers that were installed with the latest, 7.3 at that time. The idea is to upgrade gradually and the new servers were to test the compatibility between versions. Unfortunately there were...
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    [SOLVED] Active directory to use UPN instead of samaccountname?

    Hello, i am not sure what field is used for user matching in the AD connector, i suppose it is samaccountname. Is there an option to change it to UPN somewhere? Thanks.
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    [SOLVED] Corosync stopped working on one PVE node (out of 4) after restart

    Hi, We have a cluster of 4 PVE servers, all were working fine. Corosync works on the main management interface (vmbr0). We stopped one node and after booting up again, corosync failed to work on it (no updates were performed before shutdown). The other nodes work. Tcpdump shows udp packets...
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    [SOLVED] LVM (over iscsi) volume stuck and cannot be created

    We have a 3 node cluster and a SAN that is connected via iscsi (using lvm over iscsi). I had to do some maintenance and move machines around and i noticed that one specific machine could not be migrated between nodes because of errors related to it's storage. Initially it gave me some errors...
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    HA error state on some VMs (due to pve-cluster service crash?)

    After upgrading to Proxmox 6 i observed a random event - randomly VMs get into HA error states with a red circle above the VM icon. Their HA State becomes "error". The cluster seems fine otherwise. The logs indicate a "Main process exited, code=killed, status=6/ABRT" for the pve-cluster service...
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    [SOLVED] Certain VMs from a cluster cannot be backed up and managed

    We have a 4 node cluster of proxmox 6 proxmox-ve: 6.0-2 (running kernel: 5.0.18-1-pve) pve-manager: 6.0-5 (running version: 6.0-5/f8a710d7) pve-kernel-5.0: 6.0-6 pve-kernel-helper: 6.0-6 pve-kernel-4.15: 5.4-7 pve-kernel-5.0.18-1-pve: 5.0.18-3 pve-kernel-4.15.18-19-pve: 4.15.18-45...
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    Corosync fails randomly on PVE 6.0-5

    Today we had an issue related to corosync i suppose. The whole cluster disintegrated, nodes started rebooting, i even powered off all nodes and started them again - this seemed to fix the issue for the moment. There are 4 nodes and sometimes they just stopped seeing each other. Sometimes they...
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    How to upgrade a Proxmox 5 cluster to Proxmox 6

    Hi, We have a 3 node Proxmox 5 cluster and we need to upgrade it to 6. So, what is the procedure exactly? It seems that we cannot add a new Proxmox 6 node to a Proxmox 5 cluster, so i just want to know how can we go about this. Can we do the in-place upgrade of the nodes as we did before for...
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    SPICE not working with Let's Encrypt (wildcard) cetificates

    Hi, We started using Let's Encrypt certificates on our proxmox cluster. - The domain name used for is different from the internal LAN domain name. The servers were installed with the internal hostnames. - The certificates are generated on a different machine. - We use wildcard certificates...
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    VM crash on console attempt

    Hi, I observer a weird issue on Proxmox related to the web bases VNC console. Sometimes when i click on a Windows 2016 VM's VNC console, the VM crashes. This happens on a server with lateish updates, but doesn't on another that is in the same cluster but a bit behind. I supposed it is maybe an...
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    How to find out if a multi node backup job still running?

    Edit: The question relates to scripting, i forgot to explicitly specify this. Hi, Is there a way to find out programatically (edited) if a backup task is running if the backups are taken from multiple nodes concurrently? I see that there is an option to run scripts when backups are running...
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    Migrate 7-node PVE 4.4 cluster to a new subnet

    Hello, We have a 7-node PVE 4.4 cluster and we have to move it into another subnet. Can this be done by just changing the IP addresses in the web interface, shut down the machines, change the cables for the management interface (the links to the data storage are not changed) and start them up...
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    Questions about backup names and vm ids

    Hi, i test a deployment of PVE and i have a few questions. Question 1: I see that the backups are named vzdump-qemu-VMID-date-time.vma.gz (for gzip format). This naming scheme is problematic because PVE tends to "fill the gaps" when vms are deleted. If we have a vm, back it up then delete it...
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    Proxmox 4.0 "Use tablet for pointer" doesnt work at vm start

    Hi, It seems that the "Use tablet for pointer" is not activated when the virtual machine is started (in the HTML5 vnc client the mouse cursor is not in sync). If its toggled on-off after start it will remain that way even if the guest is restarted. I use spice/qxl video because Spice works way...

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