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  • All Xen related stuff

    615 Topics
    6k Posts
    psafontP
    @mdm Similar to the name-description parameter, the CLI ignores this parameter. The expected way to use would be to set the field value after the SR has been created. I'll make a work item to change the CLI and warn of ignored parameters so confusion like this doesn't happen

  • The integrated web UI to manage XCP-ng

    29 Topics
    369 Posts
    acebmxerA
    @pdonias confirmed... [image: 1780065202934-screenshot-2026-05-29-103255.png]

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

    126 Topics
    1k Posts
    C
    Hi, everyone Thank you for your help. I had a flux that was blocked by our firewall. The button worked after that. But it doesn't explain why I lost this configuration and had to reinstall it. Thanks again.

  • Hardware related section

    169 Topics
    2k Posts
    J
    @acebmxer Yeah, it does not show up as an available device in XOA or XCP-ng Center. Just listed when running lspci

  • The place to discuss new additions into XCP-ng

    253 Topics
    3k Posts
    bvitnikB
    Hi, It has come to my attention that in recent times there was some change in how VDI format is tracked in XAPI database, especially with arrival of QCOW2 support, first in XenServer (GFS2 SRs only) and then in XCP-ng 8.3 (other SR types). Currently, I have access to XCP-ng 8.1 and 8.3 (with latest updates) and I'm seeing these differences: XCP-ng 8.1: $ xe vdi-param-list uuid=SOMEUUID ... sm-config (MRO): vdi_type: vhd ... XCP-ng 8.3: $ xe vdi-param-list uuid=SOMEUUID ... sm-config (MRO): image-format: vhd ... So it seems what was earlier vdi_type is now image-format key in the sm-config parameter of a VDI. On the other hand, some people are reporting having both keys present in sm-config, e.g.: ... sm-config (MRO): image-format: vhd; vdi_type: vhd ... Neither are well documented and I can't find any official info on what keys in sm-config are supported and what is their purpose. Maybe devs can shed some light on this? To add to the confusion, official XenServer documentation mentiones a key called just type when creating raw VDIs: xe vdi-create sr-uuid=sr-uuid type=user virtual-size=virtual-size \ name-label=VDI name sm-config:type=raw In my testing this transparently gets renamed to image-format in the latest version of XCP-ng. The reason this bothers me is that I was asked to implement reporting of VDI format in my Ansible modules for XCP-ng but now I'm not sure how to do it across all of the supported versions of XenServer and XCP-ng. Currently it looks like I should try to get vdi_type and fallback to image-format if the first one is not found but I'm not certain if these keys are interchangable and have the same purpose or they just happen to sometimes have the same value. Also, ISO image VDIs seems to be missing any format indication. Any info on this subject is well appreciated. Thanks.
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  • G

    v8.2.1 rolling pool update getting stuck

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    4 Posts
    664 Views
    olivierlambertO
    Do you have any SR using a VM? (like an ISO SR in a NFS share inside a VM). This is freezing NFS and makes host taking half an hour to restart. Logs should tell you why the RPU failed if it failed
  • H

    Other 2 hosts reboot when 1 host in HA enabled pool is powered off

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    10 Posts
    2k Views
    olivierlambertO
    It's impossible to answer right off the bat without knowing more in details what's going on. HA is a complex beast, and combined with HCI, requires a lot of knowledge to find what's causing your issue, between both xha and XOSTOR. In other words, it is very demanding to analyze all the logs and trying to make sense of it. However, I can give you some clues to make sense of it: The HA log is at /var/log/xha.log. When you shutdown a host, you should be able to watch (on each host) what the HA is deciding to do. My gut feeling: there's maybe a XOSTOR issue making the heartbeat SR being unavailable, and so all hosts will autofence Then you need to understand the XOSTOR logs for why the cluster wasn't doing what's expected. My best advice: remove HA first, and only then investigate on XOSTOR. Kill on node (not the master) and check if your VMs are still able to start/snapshot/write inside.
  • J

    PXE Boot from new VM not working

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    2 Posts
    793 Views
    bleaderB
    @JBlessing as it looks like it does start, it looks like the networking side is working, at least at first. Just for debugging purpose you could try to switch that VM to BIOS instead of UEFI if it is possible, maybe it is related to what the pxe is starting in the VM. You could also try switching the VM between realtek and e1000 NIC, at this stage, PV drivers are not there so it is using an emulated NIC, maybe the image your PXE starts doesn't like the one you're using and it gets stuck somehow. As you're already using it with vmware, I assume you know how to size your VM, but if you went for a tight RAM value for this VM, you could try to give it more RAM to see if that could be related, as everything has to fit in RAM at some point, we may be using more at startup than vmware… Hope one of this can help
  • R

    Can't get slave out of maintenance mode after yum updates

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    3 Posts
    556 Views
    olivierlambertO
    About the xsconsole: sometimes it's not refreshing. You can try to get access to the console, then type "xsconsole" it will start it and you should see it works You must have the master up to date if you want your slave to connect again. I never tried to elect a new master in the middle of the upgrade, I would discourage it. Better shutdown some VMs on the master, upgrade it and you are automatically back on track.
  • R

    VM failed and won't start. Displaying "An emulator required to run this VM failed to start"

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    35 Posts
    7k Views
    olivierlambertO
    Then try to find anything happening around that time on other hosts, equipment, storage and so on.
  • msupportM

    XCP-NG Kubernetes micro8k

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    3 Posts
    1k Views
    nathanael-hN
    Hello @msupport we published a step by step guide, read more in the announcement there https://xcp-ng.org/forum/post/94268
  • B

    NFS multipathing configuration

    xcp-ng nfs xenorchestra
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    9 Posts
    3k Views
    B
    Great, thank you!
  • F

    XCP-NG 8.2.1 slave node of cluster unresponsive. after hardware reboot (with software reboot the system hang for 20min) the node is unable to contact the master node...

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    3 Posts
    482 Views
    F
    @Danp yes I ran "yum update" to be sure but "nothing to upgrade" on the pool-master. I try with storage (iscsi) NIC configured and without Storage NIC configured but the pool join freeze. Seems that persist some "SESSION" (may be referred to the slave host previously configured?) or some incoerence in the pool database... from /var/log/xensource of the slave host when try to join the pool: "session_check D:520c5b4e5b36 failed with exception Server_error(SESSION_INVALID, "
  • MK.ultraM

    Automating VM configurations after mass VMware imports

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    9 Posts
    1k Views
    olivierlambertO
    Thanks, this is helpful We'll discuss that with the @Team-DevOps and try to get things implemented!
  • MK.ultraM

    Commvault backups failing for a VM with large disks

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    2 Posts
    931 Views
    olivierlambertO
    To me it sounds like a Commvault issue. If you want some investigation on Vates side, I would recommend to open a support ticket
  • C

    How to Re-attach an SR

    Solved
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    20 Posts
    6k Views
    tjkreidlT
    @olivierlambert Agreed. The Citrix forum used to be very active, but especially since Citrix was taken over, https://community.citrix.com has had way less activity, sadly. It's still gratifying that a lot of the functionality still is common to both platforms, although as XCP-ng evolves, there will be continually less commonality.
  • E

    Rolling Pool Update - not possible to resume a failed RPU

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    13 Posts
    2k Views
    Tristis OrisT
    @olivierlambert During RPU - yes. i mean manual update in case of failure.
  • gudge25G

    Alpine Template Problem

    7
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    7 Posts
    958 Views
    ?
    For anything older than the branches still shown in https://pkgs.alpinelinux.org, (from v3.0 to v3.12), the packages should be downloaded from their cdn: https://dl-cdn.alpinelinux.org/alpine But as mentioned above, anything older than 3 releases from the lastest current one(v3.21) are end of life and should not be used for more than testing.
  • escape222E

    8.3 Cannot boot from CD Rom

    19
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    19 Posts
    5k Views
    olivierlambertO
    Reping @stormi
  • L

    sr iso disconnect and crashed my hosts

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    11 Posts
    2k Views
    olivierlambertO
    I already suggested you the solution, now it's up to you to live with those process or to decide to reboot (ideally after doing updates because it's very dangerous to NOT being up to date)
  • V

    Citrix tools after version 9.0 removed quiesced snapshot

    2
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    2 Posts
    480 Views
    TeddyAstieT
    @vkeven XCP-ng 8.1 release note says VSS and quiesced snapshots support is removed, because it never worked correctly and caused more harm than good. Note that Windows guest tools version 9 (the default for recent versions of Windows if you install Citrix drivers) already removed VSS support, even for older versions of CH / XCP-ng I am not sure if this VSS feature is bound to the PV drivers, or if it also needs hypervisor support. Though it is not recommended to stay on a old version of the guest agent.
  • T

    Diagnosing frequent crashes on host

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    15 Posts
    3k Views
    T
    @olivierlambert @olivierlambert said in Diagnosing frequent crashes on host: Maybe there's a usage that's slightly different since when it was "more solid" and now it's trigger more easily. Is your XCP-ng fully up to date? No; as said originally, I'm still on 8.2.1. I have been concerned about moving to 8.3 because it's a new installation, and I don't want to screw it up, but I'm willing to accept that it's the right thing to do.
  • S

    Script to auto mount USBs on Boot/Reboot. Monitoring Multiple UPS

    7
    0 Votes
    7 Posts
    2k Views
    olivierlambertO
    Ping @stormi so we track this somewhere internally
  • G

    Grub looking for /dev/vda instead of /dev/xvda

    1
    0 Votes
    1 Posts
    398 Views
    No one has replied
  • Y

    Storage migration logs

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    2 Posts
    393 Views
    olivierlambertO
    Hi, Check the task view, you'll have the duration of the process visible.