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    Dynamic Memory Increase says VM needs to reboot

    Scheduled Pinned Locked Moved Compute
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    • H Offline
      hitechhillbilly
      last edited by

      Hello,

      I am running a Linux box on XCP-NG 8.2.1 that shows the tools in use, and when I try to change the VM's dynamic memory, it says it needs to be rebooted. Am I missing something?

      a4a6db0b-a299-4d0b-97a2-f38cc0760e59-image.png

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      • olivierlambertO Offline
        olivierlambert Vates 🪐 Co-Founder CEO
        last edited by

        Hi,

        Are you changing the static or dynamic range?

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        • H Offline
          hitechhillbilly @olivierlambert
          last edited by

          @olivierlambert Dynamic.

          c6c20e54-261a-45fb-8c45-15057afd8fbd-image.png

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          • olivierlambertO Offline
            olivierlambert Vates 🪐 Co-Founder CEO
            last edited by olivierlambert

            You are asking to grow the RAM beyond the dynamic limits, so it needs to modify the static values. See static at 16GiB Max, so going to 32GiB in dynamic needs to also grow static to 32GiB, explaining the reboot needed.

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            • H Offline
              hitechhillbilly @olivierlambert
              last edited by

              @olivierlambert ok, i see my order of operations is wrong. Thank you for the help.

              So quick question about memory ballooning since we're talking about memory. I assume you can over-subscribe memory? This would be done with the dynamic ranges?

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              • olivierlambertO Offline
                olivierlambert Vates 🪐 Co-Founder CEO
                last edited by

                Yes, and then Xen will reduce the RAM if there's not enough available to boot a new VM (reducing down to dynamic min).

                Static means it can't be changed live, while dynamic can.

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