If you try to backup the files and folders on a windows server 2008R2 (it’s true also for windows 7/8.1/10 backup and restore), selecting as “backup target” a share folder created in a Linux system with samba, after starting the backup and taking several minutes, this error message will appear:
“the backup of volume xxx could not be completed, Error: the version does not support this version of the file format.”
The backup operation stopped before completing.
To solve the problem add this option on your smb.conf:
strict allocate = yes
To understand the reason of that check: https://blogs.technet.microsoft.com/asiasupp/2010/11/03/windows-server-backup-failed-with-error-the-version-does-not-support-this-version-of-the-file-format/
Luca's Space 