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My case was not covered by the wiki troubleshooting section - after a debugging session I've found that I have ceph packages even though I've never used them, and need to add the ceph repo: echo "deb http://download.proxmox.com/debian/ceph-luminous buster main" >...

We have a 4-nodes cluster, 3 nodes with actual VMs (pm3, pm4, pm5) and 4th (pmtmp) was just there for quorum (it used to be a 2+1 cluster originally). After some update pm4 and pm5 lost connectivity to pm3 and pmtmp and the cluster has split. They couldn't ping each other, it was a...

I have imported a cPanel server to an OpenVZ container on the latest no-subscription PVE. After about an hour or two of running the container, it reproducibly crashes with a filesystem-related error with processes in D state. The container then behaves as it has no disk access, while hardware...

Hello, I'm having a problem with RRD graphs in PVE web interface. On some servers they work, while on others the pictures are broken like this: When I right-click and select "open image in new tab", this is what the "image" being served looks like: I checked /var/lib/rrdcached/db/pve2-vm...

Hello, I have discovered that adding an option to kvm command line (-machine pc,kernel_irqchip=on) makes it behave how I want. It was fine to run it from console for testing, but I'd like to make my changes persistent - is there a file I can edit or, even better, a menu in PVE web gui I can use?

Hi everyone, Recently I received a notification from Nagios about high server load. All virtual machines have been slow - web pages were loading slowly, SSH login took almost a minute. There were many processes in D state. Using iotop and my patched vztop, I've quickly located the problem -...