Backup Checkpoint not deleting

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Backup Checkpoint not deleting

Veeam Logoby Yanish » Sun Apr 27, 2014 8:03 am

Hi,

I have a vm on hyper-v 2012R2 (not update) with a backup checkpoint that I can not delete.
The checkpoint was created by veeam during backup.
There is no opting in the GUI to manually delete the checkpoint.
I ran the backup again and it was succesfull however it did not delete the checkpoint.
What can I do? the checkpoint is growing quite rapidlly.
Image
http://1drv.ms/1k7NVB4
Gil Gross- Technical Lead G-Net Ltd
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Re: Backup Checkpoint not deleting

Veeam Logoby Vitaliy S. » Sun Apr 27, 2014 1:57 pm

Hello Gil,

Can you please clarify if you don't have an option to delete it manually or this option is grayed out? Did you see new checkpoint created and deleted during successful job run?

Thank you!
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Re: Backup Checkpoint not deleting

Veeam Logoby Yanish » Sun Apr 27, 2014 5:28 pm

Hi,
There is no option to delete the checkpoint.
The backup on the affected day ran fine, with the following backup issuing a CBT Warning. "Change Tracking Files are not specified"

Thanks.
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Re: Backup Checkpoint not deleting

Veeam Logoby Vitaliy S. » Sun Apr 27, 2014 6:47 pm

Hmm...what action do you have on the right pane?

I believe CBT warning is expected due to snapshot presence. BTW, do you have a support case opened on this, so that I could check the observed behavior with the devs?
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Re: Backup Checkpoint not deleting

Veeam Logoby Yanish » Mon Apr 28, 2014 3:35 am

No i don't have a support case.
Will open one today.
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Re: Backup Checkpoint not deleting

Veeam Logoby Yanish » Mon Apr 28, 2014 5:55 pm

This is the case number: 55738.
So far the support have not been able to solve this either. This is not a normal checkpoint, it is a backup checkpoint and although it creats a avhdx file like a regular checkpoint, it can't be managed in the same way.
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Re: Backup Checkpoint not deleting

Veeam Logoby foggy » Tue Apr 29, 2014 10:19 am

Right, this one is a backup checkpoint that is created by Hyper-V after we issue a call to VSS API to create it. So we cannot affect this process in any way, it is safe to say that the issue is on the Microsoft side, I believe.

That said, the CBT warning is not related to this, but rather caused by the fact that the job is started at the time of snapshot commit and by the moment when the job tries to get changes for the said .avhdx file, it is already merged. This warning does not affect anything.
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Re: Backup Checkpoint not deleting

Veeam Logoby Yanish » Wed Apr 30, 2014 3:41 am 1 person likes this post

Hi,
I agree that it's on the Microsoft side but it's part of the Veeam BAckup Process So support should familliar them selves with this issue.

The Checkpoint it self is a differncing disk, therfore it can not be deleted using the GUI.
The soloution in the end was to run the following powershell commands:

Get-VMSnapshot -VMName vmwithcheckpoint.domain.com -ComputerName hyper-v.domain.com| fl - this returns the VM state
and to remove the checkpoint:
Get-VMSnapshot -VMName vmwithcheckpoint.domain.com -ComputerName hyper-v.domain.com| Remove-VMSnapshot

Thanks
Gil Gross- Technical Lead G-Net Ltd
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Re: Backup Checkpoint not deleting

Veeam Logoby foggy » Wed Apr 30, 2014 5:52 am

Thanks for sharing, much appreciated.
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Re: Backup Checkpoint not deleting

Veeam Logoby Yanish » Tue Oct 21, 2014 7:30 am 1 person likes this post

Just found this patch, I believe it may help prevent the problem from re-occuring
http://support2.microsoft.com/hotfix/KB ... um=2964439
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