1 2 Previous Next 19 Replies Latest reply on Dec 11, 2019 12:38 PM by johnw230873 Go to original post
      • 15. Re: Problem with Windows Server 2019 snapshot quiescing
        bigvern2 Enthusiast

        can someone break this down so we can understand what we are disabling and any caveats, getting confused by quiesce , microsoft vss, vmware vss , vmware snapshot providers etc.


        we have 2019 servers, they were created with GPT (as we went went with uefi default bios which means gpt).


        I am getting quiesce error when trying to clone a VM,  not sure if this means file system quiesce or application VSS quiesce


        If we follow the KB article and do this vss.disableAppQuiescing = true


        what do we loose, I assume it will get rid of the error but then I ask what benifit are we losing as its the default option..


        Also disabling the service as others have mentioned - is that exactly the same effect as the setting above.

        • 16. Re: Problem with Windows Server 2019 snapshot quiescing
          bigvern2 Enthusiast

          This gets worse you know, disabling the service, as suggested by VMware, gives a false positive.


          before disabling;


          if you try and take a  quiesced a snapshot from within VMware it fails with an error - expected


          A non  quiesced snapshot works without error - expected


          A snapshot with memory works - expected


          A clone fails with an error - expected (as it uses snapshots I suspect which default to  quiesce)


          then you disable the service "" vmvss"" within windows (Im GUESSING the hack config file does the same thing ?)


          you then specifically do a  quiesced snapshot,, hey presto it works,, no errors or warnings that there was no  quiescing at all..??

          • 17. Re: Problem with Windows Server 2019 snapshot quiescing
            ewy Novice

            Can some from VMware clarify this (non-consistent backups when VMware Snapshot Provided disabled). We have several non-2019 servers too where this "fix" has been applied and the assumption is that the snapshots are app consistent as long as the app "can be quiesced", not that we were removing the possibility of it being quiesced and being fooled into thinking all is good.


            Also where in this architecture if so would this service sit.



            • 18. Re: Problem with Windows Server 2019 snapshot quiescing
              giox Novice

              Same problem happened to me: windows server 2019, GPT disk with recovery partition (hidden), ESXi 6.7.

              Taking a quiesced snapshot of windows server 2019 with ESXi failed with
              EventID: 12363
              An expected hidden volume arrival did not complete because this LUN was not detected.

              My workaround was:

              • Boot the VM with gparted live ISO x64
              • Remove diag and hidden flag from the recovery partition (it was the 1st partition). msftdata flag will automatically be set.
              • Boot on windows, open disk manager and remove drive letter
              • 19. Re: Problem with Windows Server 2019 snapshot quiescing
                johnw230873 Novice

                We had the same issue, fix for us was to convert the Main Drive to a Dynamic Disk.


                This allowed us to keep EFI and GPT.

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