We have a Server 2003 functional-level forest with three domains:
NYC is the forest root domain
LAX is a child domain of
SEA is another child domain of
Some time in the distant past, someone decided that it would be best to retire the name
NYC and starting putting everyone in the two child domains,
NYC is still there, it just has no actual users, groups or shared resources.
Now we'd like to make
LAX the forest root domain, and get rid of
SEA would remain unchanged and stay a child domain.
Is this possible? If so, how do I go about this process, assuming that nothing needs to be migrated away from the old
NYC domain? Is it simply a process of removing all the DCs from
NYC and decommissioning it, or is there more to it?
I haven't been able to find any relevant information on this process from Microsoft's resources. Please let me know if I can add any clarification, I'm still new to managing AD.