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  • All Xen related stuff

    627 Topics
    6k 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.

  • The integrated web UI to manage XCP-ng

    29 Topics
    367 Posts
    olivierlambertO
    The same as @john.c and also XO Lite tends to be less a priority because less critical than the full fledged XO (the priority is to replace entirely XO 5 in the next releases). Why you would need XO Lite outside basic actions? It's mostly meant to bootstrap XO itself and do basic operations (which is already the case, at least with many basic features already). Initially, the goal hasn't moved: replacing XenCenter. We are moving in that direction, but again, I think it's more important to get XO 6 finished first. I'm curious to understand more the use case of XO Lite in your context @unreal-shizzle ?

  • Section dedicated to migrations from VMWare, HyperV, Proxmox etc. to XCP-ng

    132 Topics
    1k Posts
    J
    @mpiton Thanks for a fantasticly quick answer, and detailed as well. I will test this immediately! Update: I can confirm that this was indeed the problem!

  • Hardware related section

    178 Topics
    2k Posts
    S
    @yannsionneau Yes it works Thank you very much, great job Tested on Ryzen 9 9950X / AMD Raphael iGPU Tested the new experimental iGPU passthrough packages. - CPU: AMD Ryzen 9 9950X - iGPU: AMD Raphael (1002:13c0) - XCP-ng: 8.3 - Guest: Bazzite AMD - VBIOS: extracted from the ACPI VFCT and supplied as /root/vbios.bin - iGPU passthrough: working - AMD amdgpu driver: working - Physical HDMI output: working - Bazzite desktop displayed successfully on the physical HDMI port. Ubuntu 24.04.2 was able to initialize the GPU and Vulkan/RADV detected the Raphael iGPU, but the HDMI output went black when the graphical desktop started. Bazzite worked and provided a stable display output. So on my Ryzen 9 9950X, the experimental packages appear to successfully enable Raphael iGPU passthrough and physical HDMI output.

  • The place to discuss new additions into XCP-ng

    255 Topics
    3k Posts
    dicode-nlD
    New version: https://github.com/dicode-nl/xcp-ng-ceph-rbd/releases/tag/v20260903 This one includes native Ceph rbd SXM over SMAPIv3! GitHub updated with the latest commits and changes. As always, use with caution. I did run a lot of test scenario's but please do test yourself and let me know your findings!
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  • RealTehrealR

    Issue after latest host update

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    @stormi Thanks, looking forward.
  • T

    Vates please work acquiring vmware in the future

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    @olivierlambert There you go hehe
  • B

    yum update, no more free space?

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    @bloodyskullz If you still see the old ISO SR, the easiest way to migrate is simply by creating a new one and migrate the ISOs through XO to the new one. In regards to deletion of the old SR you need to check if it really is mapped to another drive or if the mapping was not working and it filled / if so, you might not be able to delete it
  • C

    Guide to Replace Tianocore UEFI Logo

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  • robytR

    update via yum or via xoa?

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    robytR
    @bleader said in update via yum or via xoa?: yes you're basically doing an RPU manually. But it is indeed odd that the process is stuck at 0%, it should be fairly fast to do the install patches, no errors in the logs? i've another install all patches and install all. Now i'll use rpm update and see if speed is the same or not
  • O

    Pool Tasks Don't Complete? Major Issues...

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    @Danp Yes to both. I've probably restarted the toolstack at least a dozen times, mostly to clear hung tasks. I did notice some weird issues with a secondary SR being disconnected on xcp02, (one of 10 hosts, 9 after I ejected and forgot xcp01), but there's no disks on it. It wasn't being used for anything at all (yet), and it's fine on all the rest. That does lead me to think maybe it was a power bump that rebooted a switch or something though. Maybe it caused some kind of hangup with xcp01 and xcp02, and since xcp01 was the pool master, it cascaded to the other issues I've seen? Could that cause the VM's that were originally running on xcp02 to die and not be able to be recovered easily?
  • K

    A task keeps poping up every second or so

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    olivierlambertO
    In any case, you can ignore it.
  • henri9813H

    VM migration is blocked during backup whereas no backup in progress

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    henri9813H
    @Danp Okay, you're a genius, I upgrade this morning after my backup. So that could explain my issue. the mentioned thread is exactly my issue, but I didn't find it when I was searching about my issue. Thanks for all !
  • D

    can't start vm after host disconnect

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    olivierlambertO
    No, from the XCP-ng point of view, the VM is still running without any interruption.
  • J

    XCP-ng Documentation - Roadmap

    Solved xcp-ng doc roadmap question out of date questions
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    J
    @olivierlambert @Marc-pezin Thank you very much for sorting this out!
  • N

    problem with export or moving VM between pools

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    N
    @nick-lloyd I like your interpretation.
  • A

    Upgrading to 2.5GB NICs and Troubleshooting Driver Issues on XCP-ng

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    @aghering You could try compiling it yourself on 8.1... I don't have an 8.1 test/build system.
  • N

    Optimization of Virtual Machines

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    E
    @NerdsOrder66 Ah, good question... My most recent environment included a Windows Server with 100+ RDP users. There wasn't anything special for optimization there aside from giving it a bunch of RAM/CPU resources, but YMMV.
  • T

    Recurring crashes on VM

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    T
    @olivierlambert No, the only thing I get with xl dmesg on the host, for some time back, are random brief reports of individual CPUs running above temperature threshold and then being clocked down, and then resolving. Nothing else.
  • K

    VHD import fails

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  • K

    import vhd

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    olivierlambertO
    I suppose you mean OVA, right? Anyway, good news
  • D

    Very scary host reboot issue

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    @olivierlambert said in Very scary host reboot issue: I am very very busy so I don't have time to make a search by myself but maybe someone else around with few minutes could point you to the blog post talking about this edit: found it in few sec luckily: https://xcp-ng.org/blog/2024/01/26/january-2024-security-update/ Thanks. I'll check this out.
  • M

    This topic is deleted!

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  • B

    PVHv2 - how to configure VM

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    olivierlambertO
    Indeed, but it's a bit old, and I would say for many reasons HVM with PV drivers is still the way to go for classical server virtualization mode
  • D

    Unable to unblock a vm for reversion of snapshot

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    @Danp I tried some of the xe commands listed in that post like xe vm-param-clear and xe vm-param-remove and wasn't successful.