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Product Version: 6.0
Last Modified: 04 Jan 2016


The following error message appears:

Source host could not create quiesced (application-aware) snapshot of this VM.


  • When the “Application-aware mode” is enabled, NAKIVO Backup & Replication uses VMware OS quiescing to create VM snapshot.
  • In turn, VMware OS quiescing uses VSS to freeze I/O requests of applications inside the OS.
  • If VMware OS quiescing fails to create an application-consistent snapshot, NAKIVO Backup & Replication displays this error.


  1. Update your virtual infrastructure (especially the hypervisor on the source host) to the latest version.
  2. Update VMware tools on the machines you protect to the latest version.
  3. Check if there are any Volume Shadow Copy Service errors in the Windows logs on the source VM.
  4. Try to manually create a snapshot with the following settings:
    • "Snapshot the virtual machine's memory" option must be deselected.
    • “Quiesce guest file system” option must be selected.

Quiesced Snapshot of a VM

If the manual snapshot does not work, the problem is likely caused by VSS configuration.



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