Migrating Windows 2000 domain controller to Windows 2003 domain controller
Posted on 2005-04-27
I have 4 Win2k SP4 domain controllers running AD integrated DNS two in one site and two in another site. We have purchased VMWare ESX and loaded them on a 2 servers. I would like to build 4 virtual domain controllers in the ESX boxes and bring them online to retire my current Windows 2000 Domain controllers.
I would like some suggestions on the approach that I am taking:
1. Build Win2k3 VM with DNS, DHCP and WINS services on them. I have left them built in workgroup status.
2. Connect these Win2k3 boxes to the current production domain with the DNS, DHCP and WINS services turned off.
3. Run netdom to determine my FSMO roles.
4. all FSMO roles except schema master are on the same server. my oldest dc has the schema master role.
5. both these servers will be retired and replaced.
6. run adprep/domainprep
7. run adprep/forestprep
8. make Win2k3 box DC with WINS, DHCP and AD integrated DNS on the same machine
9. Replicate the domain.
10. leave the domain in windows 2k3 mixed mode (aka Windows 2000 native mode).
11. move FSMO roles to new virtual server
12. demote the old DCs and turn them off.
big question is where are the gotchas? I know that there are some of them somewhere. I can't have the network down for more than 8 hrs during the evening.