ML
    • Recent
    • Categories
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    KVM Virtual Machine Boot Order

    IT Discussion
    virtualization kvm boot order
    9
    45
    9.4k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • DustinB3403D
      DustinB3403 @matteo nunziati
      last edited by

      @matteo-nunziati said in KVM Virtual Machine Boot Order:

      @dustinb3403 but this will include "wait until vm A is operational/service B is available"?

      The hypervisor has no way of knowing what the VM does, so no. It just says start this VM first, then that one, and then that one etc.

      matteo nunziatiM 1 Reply Last reply Reply Quote 0
      • matteo nunziatiM
        matteo nunziati @DustinB3403
        last edited by

        @dustinb3403 said in KVM Virtual Machine Boot Order:

        @matteo-nunziati said in KVM Virtual Machine Boot Order:

        @dustinb3403 but this will include "wait until vm A is operational/service B is available"?

        The hypervisor has no way of knowing what the VM does, so no. It just says start this VM first, then that one, and then that one etc.

        At this level hyperv acts like xen. Anyway pre post hooks could be available...

        matteo nunziatiM 1 Reply Last reply Reply Quote 0
        • matteo nunziatiM
          matteo nunziati @matteo nunziati
          last edited by

          Now to be fair both mine and @dafyre cases could be solved with longer polling intervals, so they are a sysadmin issue not related to virtualization. Anyway hv agents are used for a lot of things, I don't see why they couldn't act as kubernates with containers. I suppose it is just a lack of demand.

          1 Reply Last reply Reply Quote 0
          • JaredBuschJ
            JaredBusch @Obsolesce
            last edited by

            @obsolesce said in KVM Virtual Machine Boot Order:

            @matteo-nunziati said in KVM Virtual Machine Boot Order:

            @dustinb3403 said in KVM Virtual Machine Boot Order:

            @obsolesce that's annoying. . .

            Edit: still annoying but doesn't Hyper-V have startup priority?

            No it hasnt until I checked 6 months ago. Only way is build a delay schema by hand and assign delays to VM batch start them in layers

            Hyper-V had startup priority since 2012... fully configurable... startup action and startup delay.

            This is inaccurate. There is not a priority.

            Hyper has only ever had this.
            0_1533154098692_7bc8e1f1-b436-47db-8e4e-726f1555ebb1-image.png

            ObsolesceO 1 Reply Last reply Reply Quote 1
            • ObsolesceO
              Obsolesce @JaredBusch
              last edited by

              @jaredbusch said in KVM Virtual Machine Boot Order:

              @obsolesce said in KVM Virtual Machine Boot Order:

              @matteo-nunziati said in KVM Virtual Machine Boot Order:

              @dustinb3403 said in KVM Virtual Machine Boot Order:

              @obsolesce that's annoying. . .

              Edit: still annoying but doesn't Hyper-V have startup priority?

              No it hasnt until I checked 6 months ago. Only way is build a delay schema by hand and assign delays to VM batch start them in layers

              Hyper-V had startup priority since 2012... fully configurable... startup action and startup delay.

              This is inaccurate. There is not a priority.

              Hyper has only ever had this.
              0_1533154098692_7bc8e1f1-b436-47db-8e4e-726f1555ebb1-image.png

              Okay, technically incorrect.... I'll give you that.

              The point I was trying to make, was you can artificially set priority VM booting by adjusting the "startup delay" for each VM.

              1 Reply Last reply Reply Quote 0
              • 1
              • 2
              • 3
              • 3 / 3
              • First post
                Last post