Problem Description
Virtual machine (VM) backup fails during the snapshot creation phase due to a quiescing error.
Cause:
The error indicates that VMware Tools was unable to successfully quiesce the VM during snapshot creation. This is commonly caused by a conflict or malfunction in the VMware VSS Provider service within the guest operating system.
Traceback
method=createVMSnapshot message="VM snapshot creation failed."
Error="An error occurred while quiescing the virtual machine. See the virtual machine's event log for details."
code: 4296146951
actualErrType: *types.ApplicationQuiesceFault
actualMsg: An error occurred while quiescing the virtual machine. See the virtual machine's event log for details.
Resolution:
To resolve the quiescing issue, follow the steps below to disable the VMware VSS Provider service on the affected VM:
Log in to the guest VM (Windows OS).
Press Win + R, type services.msc, and press Enter.
In the Services window, locate the service named VMware Volume Shadow Copy Service Provider or VMware VSS Provider.
Right-click on the service and select Properties.
Change the Startup type to Disabled.
Click Stop (if the service is running), then click OK.
Wait for the next scheduled backup job or manually trigger a backup to verify if the issue is resolved.