[Samba] Best File Server Backup Practice

[Marco Shmerykowsky]

Maybe a stupid and tangential question, but ...

Are there best practices for how to setup backup routines
on a Samba file server when all the users are managed
by AD?

Files are owned by users and typically the group
"Domain Users".  I often read that backup routines
should be set up using a non-root user set up for
backups only, but that is always for a linux environment.

Does the same apply when everything is in AD even though
the backup program is actually running on the Linux machine?