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Vm backup failling with snapshot error (156)An error occurred while saving the snapshot: Failed to quiesce the virtual machine.

 

Hi Everyone,

I am here back with another issue.

If anyone is getting error taking backup snapshot of a virtual machine and getting the below error.

Vm backup failling with snapshot error (156)An error occurred while saving the snapshot: Failed to quiesce the virtual machine.

Apr 28, 2021 2:22:55 AM - Critical bpbrm (pid=15849) from client XXXXX: FTL - vSphere_freeze: Snapshot task for virtual machine XXX-YYY (/vmmor/vm-341) failed, 0 retries remaining, error type: 263, error message: An error occurred while saving the snapshot: Failed to quiesce the virtual machine..
Apr 28, 2021 2:23:08 AM - Critical bpbrm (pid=15849) from client XXXX: FTL - vfm_freeze: method: VMware_v2, type: FIM, function: VMware_v2_freeze
Apr 28, 2021 2:23:09 AM - Critical bpbrm (pid=15849) from client XXXXX: FTL - 
Apr 28, 2021 2:23:09 AM - Critical bpbrm (pid=15849) from client XXXXXX: FTL - vfm_freeze: method: VMware_v2, type: FIM, function: VMware_v2_freeze
Apr 28, 2021 2:23:09 AM - Critical bpbrm (pid=15849) from client XXXXXX: FTL - 
Apr 28, 2021 2:23:09 AM - Critical bpbrm (pid=15849) from client XXXXX: FTL - snapshot processing failed, status 156
Apr 28, 2021 2:23:09 AM - Critical bpbrm (pid=15849) from client XXXXX: FTL - snapshot creation failed, status 156




Please follow the below steps and restart the VMware tools in the vm.

Open the below path

C:\ProgramData\VMware\VMware Tools\

you will find a file called  Tools.Config.Example

Copy the same file and paste it in the same location and rename the file to tools.conf

if you save it you will get a new Config file.

now open the file and look for the below statement.

[vmbackup]

#vss.disableAppQuiescing = true

If its False make it true and if the statement is not there then add the above the statement and save the file.

Once the file is saved go to Services.msc and restart the VMware tools service and now initiate the backup and it must completed without error.




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