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Activity failed „Deleting snapshot“

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Hello,

 we have got a problem with the backup of only one server. This is a backup of the entire computer, 

it crashes on the deleting snapshot error. I send the logs in the attachment.

 

Can you please help with this problem?

 

 

Thanks for your help.

Anhang Größe
logs (2).zip 4.51 KB
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Hi,

As workaround you may want to install an Agent for Windows into the guest operating system of the affected virtual machine (as far as I understand from the log you're backing up Hyper-V VMs) and back up this particular machine as "VM with agent". Does the backup works flawlessly in this case? 

Make sure you are using the latest available build version (the installation file can be downloaded from your personal account). Update all Acronis components. After successful update re-attempt backup of the faulty server to check if the issue is gone. 

To troubleshoot the issue with snapshot I'd first of all check Windows Event logs (on hypervisor and affected VM) for any related error messages. 

Acronis software uses snapshots executed by the hypervisor while taking the virtual machine backup. It is necessary that these snapshots work correctly. You can check the consistency of the snapshot in the following way.

Create a VSS snapshot of the Hyper-V server and check that the Hyper-V VSS writer shows no errors. Follow instructions in Using DiskShadow to Determine Issues with VSS to create a VSS snapshot with Microsoft Hyper-V VSS writer verification.

If you backup a virtual machine with transactional applications installed (SQL, Exchange ect.), then:

  • Hyper-V Integration Services should be installed inside that guest OS.
  • VSS service should not be disabled inside the guest OS.

Keep in mind the Hyper-V virtualization platform limitations: Microsoft Hyper-V does not provide control over pass-through disks to a host system. As a result, the Microsoft Software Shadow Copy provider cannot provide Agent for Hyper-V with snapshots of pass-through disks. To overcome these limitations install an agent into the guest OS.

Thank you, 

Hi,
We do have the same problem on a updated acronis 12.5 hypervisor trying to backup 3 VM. Everyday, the same problem with one VM.

Here is the log

Can you help lease?

Thx

Anhang Größe
451582-147979.zip 7.18 KB
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Beiträge: 250
Kommentare: 7092

Hi,

Please refer to the following comment https://forum.acronis.com/comment/414425#comment-414425  So the recommendation would be updating to the latest build 10130, then testing a new backup with the legacy archive format (version 11) and if the issue still persists on the archive format 12, contact Acronis support team for investigation.

For more information about backup formats see https://www.acronis.com/en-us/support/documentation/AcronisBackup_12.5/#38763.html

Thank you,