KB ID : 105130
Products :
Published : Feb. 17, 2020
Created : Feb. 17, 2020
Last Modified : Feb. 17, 2020

Details

Vembu leverages VMware snapshot for VM Backup & Replication. When initiating snapshot for backup or replication, Vembu always quiesces the VM to ensure on-disk data are in a consistent & suitable state. You will get the error message “Unable to create VM snapshot. Failed to quiesce the VM.” if there is an error while quiescing the VM to create a snapshot.

Causes

This error will occur, if:

1) The VSS writers of the Windows VM are not in a stable state.

2) The snapshot operation exceeded the time limit for holding off I/O in the frozen virtual machine

3) The operating system of the VM is Windows Server 2019 VM with EFI-boot and has the recovery volume & the system disk is GPT disk.

4) The operating system of the VM is GPT disk without MSR partition.

Solution

As all of these causes are specific to the VMware snapshot creation, VMware has already provided the necessary steps for troubleshooting in their knowledge base section.

Below you can find the links to VMware’s knowledge base section for each of the above-mentioned causes.

1) If the VSS writers of the Windows VM are not in a stable state

https://kb.vmware.com/s/article/1007696

2) If the snapshot operation exceeded the time limit for holding off I/O in the frozen virtual machine

https://kb.vmware.com/s/article/1018194

3) If the operating system of the VM is Windows Server 2019 VM with EFI-boot and has the recovery volume & the system disk is GPT disk.

https://kb.vmware.com/s/article/60395

4) If the operating system of the VM is GPT disk without MSR partition.

https://kb.vmware.com/s/article/71130

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