Add Windows 2008 server to existing wnidows 2003 SBS network?

[realized]

So i have an existing network running off a single server running windows 2003 SBS.

I am about to add a file server that originally was going to run Linux.. However.... i was wondering if i set up windows 2008 if i could add it as another domain controller?

I just saw this: Adding a Server Running Windows Server 2008 to a Windows Small Business Server 2003 Network

which seams to say i can...

the goal of the 2nd server was to only be a file server... however, if i could use it as sort of a fault tolerance for the services running on the SBS machine (dns,wins, print server, sql, login server etc) then that would be cool as well.

Thank you!

Edited April 18, 2012 by realized

[allen2]

Login server and dns are the Active directory domain controller role. To my knowledge, you should be able to add and perhaps promote the windows 2008 server as another controller but i wouldn't do it as it is highly recommended to have all domain controller running the same OS.