4 Replies Latest reply on Sep 19, 2016 4:10 AM by VMBoy79

    VM powered on by DRS

    Chaton Novice





      I have seen something I had never seen before: DRS powered on a VM that has been

      powered off for days. I checked the tasks and it was DRS that powered

      the VM on, not a user. It looks like DRS needed to migrate it to

      another host, so it moved it and then powered it on. I have never seen

      this behavior before. Just curious if you have seen this or have an

      explanation. Thanks!



        • 1. Re: VM powered on by DRS
          Marcelo Soares Virtuoso

          How did you find out it was the DRS? I really never seen this...


          Marcelo Soares

          VMWare Certified Professional 310/410

          Technical Support Engineer

          Globant Argentina


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          • 2. Re: VM powered on by DRS
            weinstein5 Guru

            DRS will not power on a VM by itself - it will however start a VM on any node in the DRS cluster when it is powered on - depnding on the configuration of DRS if it is Fully Manual then the user selects which host to start it on - if it configured for Partially Automated or Fully Auotmated DRS will start the VM on the host with the most available resources - so I would look for whoever powered on the VM - 





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            • 3. Re: VM powered on by DRS
              vmjoe Enthusiast

              I experienced the same phenomenon (without the VM being migrated before) on ESXi 5.1/vCenter 5.1 enivronment. The VM seems to be suddenly powered on, and the only thing the task and event logs reveal is, that "DRS powered On" the VM. The task itself is "Initiated by System", the "related events" do NOT show a task by a user (could be considered a bug).



              On datacenter level, select "Show datacenter entries" instead of "Show all entries" and search for the same date and time. There should be a task "Initialize powering On" initiated by the actual user. There's no reference to the VM, the target is the datacenter. So the only correlation is the time stamp!



              Make sure the list size in vSphere client is set to the maximum: Edit -> Client Settings -> Lists -> Page size: 1000 (the maximum).

              1 person found this helpful
              • 4. Re: VM powered on by DRS
                VMBoy79 Novice



                Yeah it is correct. The Powered on events actually get triggered under the Datacenter not at cluster or VM level. DRS put the VM to the correct host under the cluster once the VM gets powered up.


                info      <Time Stamp>                                       VM(******) on host (*******)  in datacenter (******) is starting

                info     <Time Stamp>                                        Task: Power On virtual machine

                info    <Time Stamp>                    <Username> Task: Initialize powering On