2 companies with 2 different AD / Exchange environments coming together as one
Posted on 2007-12-05
I have just ben notified that in a little over a month we will be aquiring another company of equal size and thus doubling our physical size however we will be residing in 2 different locations for at least a couple of years until leases etc. run out on office space.
Currently the surviving company has 1 AD Forest / Exchange server along with other servers like Blackberry, Rightfax, SQL, etc...
The aquired company currently has 1 AD Forest / Exchange server / SQL server.
What is the best way to connect the 2 offices and have them operate as one?
My initial thought is to install a new server at the new location and have it joined to our current domain across a dedicated connection T1 or otherwise between the locations and move the users to our exchange server and the main office having users connect to the exchange server via cached mode etc.. Then the only purpose the server at that location serves is file and print services.
Seems like a lot of expense and work though the more i think about it
Is there a way to have 2 separate AD Forest / Exchange servers in different locatoins have a "trust" between them and operate separately but together? Seems somewhat like some redundancy that would be nice for our disaster recovery plan. Could we have the 2 exchange servers in different domains / forest duplicate to one another? So if one or the other location went down we could pick up and run at the remaining site?
Im sure all of this has been done many different ways over and over. Any advice anyone has is greatly appreciated