Categories

  • All news regarding Xen and XCP-ng ecosystem

    146 Topics
    5k Posts
    J
    @acebmxer Can you suspend the vm ? If its not possible its most likely a kernel thing inside the vm. If you can suspend the vm however, it points more to a timing/timeout issue with the migration.

  • Everything related to the virtualization platform

    1k Topics
    15k Posts
    H
    @dinhngtu said: dinhngtu VATES 🪐 XCP-NG TEAM a day ago @hrvojer There are many bugs in older versions of the Xen PV drivers. I suggest running Windows without guest tools and drivers if you can take the performance and functionality hit (no suspend/migration on UEFI VMs, no metric reporting, etc). Thanks @dinhngtu, appreciated. Running without PV drivers is hard for us: this is an I/O-heavy production SQL Server and we already had timeout problems before adding RAM, so I'm worried emulated disk performance would hurt more than an occasional crash. Our medium-term plan is to migrate SQL to a new VM with a supported Windows Server and current tools. Until then, a few follow-up questions: Is there any official place to still get XenServer VM Tools 9.2.3 (or whichever last version works on 2012 R2)? Would an older XCP-ng PV driver release (e.g. 8.2.2.200) likely be any better here, or is it the same xenvbd code base? One more detail I missed: in the same Feb 2026 change we also enabled "Lock Pages in Memory" for the SQL Server service account (together with 16 -> 64 GB RAM). Is there any known issue between old xenvbd and locked pages / large guest memory? Meanwhile we've capped SQL max server memory at 32 GB as a stopgap.

  • All Xen Orchestra related questions/reports

    3k Topics
    29k Posts
    acebmxerA
    Ok i redeployed as a separate xo... I was able to get one of the two vms i had trouble with initially. The one that is not connecting is a Fedora vm running docker. This test i used same ssh key for all three vms and user name. [image: Screenshot_20261010_085036.png] [image: Screenshot_20261010_085114.png] [image: Screenshot_20261010_085501.png] After some digging around and with AI help i got the Fedora Docker vm connected... There is a possibility i might not had sshkey installed on the vm. I should have looked before re-applying it. SELinux: Fedora blocked sshd from reaching Docker's socket, which XO needs in order to talk to Docker. It denied two things, writing to /var/run/docker.sock and connecting to the Docker daemon. The two rules we added with audit2allow allow both. Ubuntu doesn't enforce SELinux, which is why the other two VMs worked with the same user and key. [image: Screenshot_20261010_091602.png]

  • Our hyperconverged storage solution

    54 Topics
    824 Posts
    J
    @poddingue Turns out it is all secondary-to-secondary out of sync. So that makes it less intense, though if primary dies I wonder how it will resolve this, or if it will become split brained. Still unsure of how it happened, but the ones I manually cleaned up have not come back. Going to continue to manually clear them up. If it happens again I will have an alert setup to notify me, and I have all the xcp-ng logs and everything to be able to see what happened. If that happens I will post here with details and logs for the resource so we can see how it occurs. [image: image.jpeg]

  • Non-English speakers

    37 Topics
    136 Posts
    J
    @AtaxyaNetwork Merci pour tes recherches ! Oui "cd_label" serait cool comme ajout au plugin ce qui permet sur les distro type Fedora/Redhat de ne pas avoir de boot_command à gérer