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    CPU Topology (Windows Specifically) only ever shows 2 sockets

    Scheduled Pinned Locked Moved Compute
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    • J Offline
      jordancalhoun
      last edited by

      Is it normal for Windows VMs to only ever show 2 sockets in the VM itself? For example, if I give the VM 24 cores in XCP-ng and assign the topology 12 sockets/2 cores per socket the VM only shows 2 sockets, 4 cores. If I change it to 4 sockets/6 cores per socket it will show 2 sockets/12cores per socket.

      Host info:
      Dell Poweredge R730XD
      2x Intel E5-2680v3 2.50Ghz
      128GB RAM
      12 2TB SAS Drives in RAID10 done through PERC H710 Mini

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      • DanpD Offline
        Danp Pro Support Team
        last edited by

        What OS version? Could this be due to licensing?

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        • J Offline
          jordancalhoun
          last edited by

          It's Windows 10 Pro, I believe I've also seen the issue with Server 2019. I don't suspect it's a licensing thing due to the fact that I could just move the topologies to 2sockets / Xcores per socket

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          • dthenotD Offline
            dthenot Vates 🪐 XCP-ng Team
            last edited by

            What I have seen from Microsoft forums would seem to indicate that Windows 10 only support up to 2 sockets and 256 cores.

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            • J Offline
              jmccoy555
              last edited by

              Windows Home is 1 socket, Pro is 2 and Workstation / Enterprise is 4 apparently......

              Windows Server is many more 64 apparently, currently I have 12 dual core sockets on my VM.

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              • J Offline
                jordancalhoun
                last edited by

                Okay, this makes sense, thank you for the clarification. The reason I was asking I've been having crazy issues with xcp-ng on my server with VMs crashing all the time on boot etc and have been trying to troubleshoot and just wanted to look into this as I've done every other thing I can possibly think of. thanks again!

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