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    • S

      XCP-ng 7.6 Performance issues

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      olivierlambertO

      Yes, system profile seems the most obvious thing to me. Double check it's on "Performance" on both hosts.

    • G

      Low CPU Performance on AMD 3960X

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      olivierlambertO

      Buggy ACPI tables is sadly more common on non-enterprise grade hardware 😞

      Might be related or not, but thanks for the feedback about frequency 🙂

    • Z

      What are VM creation templates? Can I change them afterwards?

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      Z

      @olivierlambert Ok, thanks. I will create another topic for the display issue.

    • T

      intellicache

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      T

      Ah, probably won't work then, I'll try NFS async, thanks!

    • M

      This topic is deleted!

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    • ShehuAwwalS

      Auto-Start VMs Problems

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      olivierlambertO

      Shutdown the host properly and report if those VM boots. Try to disable/enable power on via Xen Orchestra, there's an issue in XCP-ng Center with this setting.

    • J

      [Solved] Passing multiple devices to one VM...

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      J

      RTFM 🤦
      https://xcp-ng.org/docs/compute.html#pci-passthrough

      You can also passtrough multiple devices. If you wanted to passtrough another device at 00:19.0 just append it to the parameter. [root@xen ~]# xe vm-param-set other-config:pci=0/0000:04:01.0,0/0000:00:19.0 uuid=<vm uuid>
    • M

      [SOLVED] Xenctrl.Error("22: Invalid argument") after trying to passthrough a PCI

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      M

      @xTITUS-MAXIMUSx

      Thanks for the tip. I went to the bios and enabled the Intel Virtualization Technology and I thought I was done. After further research I recognized there are two steps to Enable the Intel Virtualization Technology. https://us.informatiweb.net/tutorials/it/bios/enable-iommu-or-vt-d-in-your-bios.html

      Advanced >> CPU configuration >> Intel Virtualization Technology >> Enable Advanced >> System Agent Configuration >> VT-d >> Enable
    • K

      /dev/xvda not appearing in guest

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      K

      It seems I got a kernel panic for some other reason with 5.4.21. It's all working now, thanks.

    • H

      Xen hypervisor features.

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      olivierlambertO

      Please take time to read carefully the previous link I send.

      If you can't spot it, re-read it slowly, you might see this link: https://xenbits.xen.org/docs/unstable/support-matrix.html

    • D

      IOMMU with NVIDIA quadro

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      olivierlambertO

      It should work, yes.

    • P

      XcpNG - Xen kernel crash (FATAL TRAP: vector = 2 (nmi))

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      olivierlambertO

      Hi @mauricio_hps

      This is a XCP-ng forum, please try with XCP-ng 😉 https://xcp-ng.org

    • talbarorT

      Ubuntu 18.04 get to read only mode system

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      stormiS

      @talbaror by the way you can find discussion about all this, and what users have tried, etc., at:

      https://xcp-ng.org/forum/topic/2496/xcp-ng-nfs-timeout-values-and-storage-node-active-standby-failover https://github.com/xcp-ng/xcp/issues/334 stormi created this issue in xcp-ng/xcp open Use NFS hard mount instead of soft mount to avoid RO VMs (or offer option)? #334
    • M

      Max allowable deviation in top "st" parameter

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      M

      5% sounds too much for me, but I'll check it in some populated pools (with host's cpu below 80%) to have a better idea.

    • O

      Losing Time on multiple VM machines

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      jtbw911J

      @Otis2772 Where is your time synchronization coming from? Time differences can be caused by a slew of things including power settings (VM or not), CPU availability, networking connectivity, etc. Are they all the same OS or different OSes?

    • H

      noob question about clustering

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      olivierlambertO

      64 hosts tops. But in general, people tends to use around 16 to 20 hosts max in a pool.

      Don't forget about support 😉

    • H

      migrated centos 7 from kvm or esx drops a lot of network packets (centos 8 / ubuntu is fine)

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      olivierlambertO

      Check dmesg in the VM

    • M

      installing Openwrt on xcp-ng

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      M

      I am back to the office and I am troubleshooting different settings and connection setups. I appreciate all your input. The issue is configuring the right NIC0/NIC1/WAN/ and LAN. Once I am done I post my setting. Thanks again for everyone.

    • C

      win 2019 vm-checkpoint failed on xcp-ng 7.6

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      olivierlambertO

      Wow, didn't know it was possible to violate those rules!

    • P

      Migrating docker host to new XCP host not working.

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      P

      Yep.. that did it... started it on the older host, and can now migrate it backwards and forwards with on issues...

      Thanks Olive... as always.

      Peter.