[Samba] File server and DC or just member

[Gregory Sloop]

Kind of a whole set of general questions - pardon for one more, please!

I've read some of the thinking behind not having a DC also be a file server.
But it's not a "rule" - just a suggestion.

But here's a wrinkle on things.
In more than a few setups, I'll have DC's on VM's - and they won't be serving files they'll be purely DC's.
Then on dedicated hardware, I'll have a file-server.

Obviously I can make that file server simply a domain member, or I could make it an additional DC.
Having an additional DC would probably be good, as we'd have an additional replica of the AD repository. If we lost one or all of the DC VM's we'd still have the DC on the file-server too.

So, why not make it a full DC, and not just a member server? [Or even a RODC]
[File shares will be on separate volumes/disks, from any of the OS or Samba/AD disks - so migrating data isn't also tangled with AD or OS components.]

-Greg