We had a Win2K3 server, which was upgraded from NT4.0, running Active Directory for our domain. We installed a new Win2K3 server, joined it into the domain, transferred all FSMO roles to this new server, and made the new server the Global Catalog server with the intent of replacing the old server.
A few months later, the old server had one of it's drives in a RAID5 to fail and we decided to migrate off that server. We issued a DCPROMO to disjoin this server but were unable to get the process to complete (not sure on the error message since that was several weeks back). After researching the problem and coming up with no solutions, we decided to do a forced DCPROMO /FORCEREMOVAL. Before starting this process, we noticed that the replication was failing (probably why the DCPROMO failed in the first place) but weren't too concerned since this was the PDC (or so we thought!).
Anyway, after forcing the DCPROMO and shutting down the server, we started having issues with the domain becoming unavailable when we opened "Active Directory Users and Computers". We fixed several issues with the DNS, including removing the old Win2K3 server from DNS (by the way we are using Active Directory Integrated DNS) which fixed several event log errors. We had to recreate the NETLOGON and SYSVOL shares and were able to manually copy the contents of those folders off the old Win2K3 server (the contents remained after the forced DCPROMO).
Now when we run the DCDIAG tool, we are getting an error:
Warning: DcGetDcName (GC_SERVER_REQUIRED) call failed, error 1355
A Global Catalog Server could not be located - All GC's are down.
Warning: DcGetDcName (TIME_SERVER) call failed, error 1355
A Time Server could not be located.
The server holding the PDC role is down.
The NETDIAG tool sheds some light on this with the message that the new Win2K3 server is acting as the PDCEmulator.
By the time I discovered the errors, the local IT person had reused the old Win2K3 tapes in the new Win2K3 server, thus destroying any chances of restoring any backups (guess he's allowed a mistake since we were stupid enough to do a forced DCPROMO.....).
What we would like to do, if possible, is to copy any needed information that wasn't replicated from off the old Win2K3 server and then change this server from a PDCEmulator to the PDC. Does anyone know if this is possible or perhaps someone has a suggestion as to what can be done. We have around 30 PC's in this domain so although it's small enough to rebuild, we would obviously prefer to fix it. Any help would be greatly appreciated.