SMB problem with shares / backing up


I have RockStor in production environment on an old IBM server with 2 TB storage. The idea is to use it solely as terminal for Windows Server 2012 R2 backups.

I’ve set everything up, and Windows shares work; however when I try to backup to RS, the backup copies everything and than fail at the end. I tried starting command manually, and automatically.

The issue this might be connected to is that RockStor doesn’t show share folder free space when connected to it through File Explorer.

Any ideas?