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For the last week one server is failing backups to a NAS with

The backup operation that started at '‎2017‎-‎12‎-‎17T23:37:47.558318200Z' has failed with following error code '0x807800C5' (There was a failure in preparing the backup image of one of the volumes in the backup set.). Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.

It creates the shadow copy, backs up the EFI partition, moves on to backing up the C: drive and then fails

Backup_Image

Other servers, plus a whole raft of Sybase databases backup to the same NAS without any problems

I changed WindowsImageBackup to a different name. It created the directory but still fails, getting only as far as

Drive_Image_One

This Saturday (after patch Tuesday) it was rebooted, but still the same. At a loss with this one!

Thank you

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Stumpped by the same problem on my VM 2016 Server were the following error entries on the BU job in the wbadmin GUI: enter image description here wbadmin GUI Backup listed errors

In my case I resolved the issue by:

  1. Deleting the existing scheduled Job

  2. Opened the Config Settings: enter image description here (Right mouse click 'Local Backup') and changed from 'Faster Backup Performance' to 'Normal': enter image description here

  3. Executing a backup once job that did not point to a sub directory as show in the first image above.

The job executed successfully.

Afterwhich I then created a scheduled job & executed it once to confirm functionality.

Perhaps, this may help some of you guys out.

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