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    Adding new host to pool failed

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    • nick.lloydN Offline
      nick.lloyd @tony
      last edited by

      @tony It shouldn't matter since the hosts are in the same pool, it should list both of them. You can run it against both hosts to be sure

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      • T Offline
        tony @nick.lloyd
        last edited by

        @nick-lloyd They are not in the same pool yet, because of the error above, the new host cannot be added to the pool. I ran the host-license-remove command on the new host and still the same thing, the result of the host-license-view remains unchanged.

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        • T Offline
          tony
          last edited by

          More information, both are XCP-ng 8.2.1, I ran the host-all-editions command and both returns just xcp-ng

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          • nick.lloydN Offline
            nick.lloyd @tony
            last edited by

            @tony Huh, interesting... What hardware is in each of the hosts? And can you double check that you're running similar-ish firmware/bios on both servers?

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            • T Offline
              tony @nick.lloyd
              last edited by

              @nick-lloyd They are both xeon but around 4 generations apart, how do I check if they are compatible? I have successfully added a non xeon with a xeon to the same pool before (there were warnings that some feature set will be disabled) so I thought this should be fine too, but please let me know otherwise.

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              • nick.lloydN Offline
                nick.lloyd @tony
                last edited by

                @tony That should be fine, are you adding the older host to the newer host's pool, or vice-versa? My guess is that the newer one needs to be added to the older server's pool so that it can "properly" mask the CPU features

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                • nick.lloydN Offline
                  nick.lloyd @nick.lloyd
                  last edited by nick.lloyd

                  @tony And again, double check the BIOS updates. There may be a bug fix in one of them for Xen

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                  • T Offline
                    tony @nick.lloyd
                    last edited by

                    @nick-lloyd The new host is has new CPU, the old host already in the pool has older CPU. I will try to update the BIOS of the new host and see if it helps. I don't think the old host will have any updates.

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                    • T Offline
                      tony
                      last edited by

                      Updating the BIOS of the new host made no differences. So I tried to add it to my test pool and what do you know, it works without any issue and the test pool has a master of even older CPU so I don't think its compatibility issue.

                      There must be something wrong with my main pool that I'm trying to add the new host to.

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                      • T Offline
                        tony
                        last edited by

                        Ok figured it out at the end using xe pool-list on the existing pool gives me a list of existing hosts on the pool, and there was one that has been taken offline, without detaching in XO. So I did a xe host-forget uuid=<host uuid> because xe pool-eject doesn't work on offline host. And now I can add the new host just fine. Thanks everyone for helping!

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