Take the 2-minute tour ×  We have just setup our server
(although I may be reinstalling it from scratch to use 2008
rather than 2003) and we are now looking into redundancy
options. The best option I can see would be to have a duplicate
server next to our current one which runs the domain aswell - we
can then power off one of the servers for RAM upgrades etc. and
the domain will continue to run as normal.  Is this
functionality built in to Windows Server 2008? Also, we are
using the server as a file server aswell as the domain
controller - would this be duplicated across the two servers
aswell?  So basically my questions are:  How easy would it be to
setup a continuously duplicated server next to our current
server? Would we just need another server license for 2008, or
another CAL license for each device?    share|improve this
question If you're running both simultaneously, you'll need two
sets of licences. As for real-time replication, it's possible
but probably expensive. If one is just a backup server whi