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    Recent Best Controversial
    • Problem: XOA becomes unusable when XCP-ng master host is rebooted

      Hi everyone,

      I’m facing an issue in my XCP-ng environment and would really appreciate some advice or best practices.

      I have a pool with 3 XCP-ng hosts, and I’m running Xen Orchestra (XOA) as a VM on the second host (not the master). Everything runs fine under normal conditions.

      However, if I reboot the master host, I temporarily lose all control of the pool through XOA. Even though XOA is still up and running on the second host, it can’t see any hosts, VMs, or storage — it’s like the entire pool becomes unmanageable until the master comes back online.

      My setup:
      • 3-host XCP-ng pool
      • XOA is a VM on host 2 (not the master)
      • When the master is rebooted, XOA loses access to the infrastructure
      • When the master is back online, everything works again

      My questions:
      1. Is this behavior expected in a multi-host pool?
      2. Is there a safe way to promote another host to master automatically or manually during planned or unplanned downtime?
      3. Would it be better to run XOA outside of the pool, on a dedicated device (e.g., a NUC, VM on another hypervisor)?
      4. Are there best practices for ensuring high availability of the management layer (XAPI + XOA)?

      Thanks a lot for your help!

      posted in Management
      C
      Cygace
    • RE: Migrating a Client to XCP-ng – Stability of the Community Edition?

      @Andrew How to find the good version in 8.3 ?

      posted in Migrate to XCP-ng
      C
      Cygace
    • Migrating a Client to XCP-ng – Stability of the Community Edition?

      Hello everyone,

      I have a client who recently ordered a new physical server infrastructure along with a SAN. They are currently running two CentOS hosts that haven’t been updated in five years. Given their strong preference for open-source solutions (they are a higher education institution), I’m considering migrating them to XCP-ng.

      My initial plan is to deploy the fully open-source version of XCP-ng (Community Edition) to allow them to test the platform for about a year before potentially moving to the paid version at the end of 2025.

      My main questions are:
      1. Is the Community Edition stable enough for production use in this type of environment?
      2. Has anyone here deployed the free version in a similar scenario, and what were your experiences?
      3. Are there any key limitations in the Community Edition that might impact long-term adoption before transitioning to a paid plan?

      The primary goal is to ensure a smooth migration and provide them with a reliable solution while staying within their open-source philosophy. Any insights or recommendations would be greatly appreciated!

      Thanks in advance!

      posted in Migrate to XCP-ng
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      Cygace