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RID master dc CRASH. NEED HELP

By REZUMA ·
I have a problem.
In an multisite network with 17 DC I have the first DC that we installed(DC01),(the one holding PDC role, RID pool manager and the Infrastructure owner role) crashed.
I rebuilt it but I haven't promote it yet to DC.
My questions is how to proceed next.
Will it work if I just promote to be DC considering that have exactly the same FQDN name? My guess is not because of SID but don't know for sure.
On the hand Microsoft advice to seize ( force transfer) those roles to another DC. But it also says that if we do so, the crashed DC (DC01) should no be bring back to the network (the old one must never come up again). What this exactly means?, Does it mean that I can not use that machine at all? I doubt it, does it mean that that server can't be brought back with the same FQDN?
It would important for me to have that machine on the network with he same name because of an application that looks for file in that server, can I have that machine with the same name but don't promote it to a DC and transfer the roles to another DC.

I am really in pickle :)

Thanks

Rezuma

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by p.j.hutchison In reply to RID master dc CRASH. NEED ...

i have done this in a test environment, you can use the same Computer account as before with the same name, use Reset Account in AD users and computers.
You may need to get the FSMO roles to another server if you have problems.
You can then run DCPromo to make it a DC and replicate the Domain back to your new DC.

See MS KB on forcing FSMO roles.


Then you can get the the FSMO roles

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by razz2 In reply to RID master dc CRASH. NEED ...

Seize the the roles to another DC.

Then follow the steps in this KB article to remove the old DC
from AD.:

http://support.microsoft.com/kb/216498

Then promote the rebuilt server to DC. You could then take
them back to the rebuilt server if you wanted. Make sure to take
your time and allow for full domain sync on each step. I have
seized roles before, and used the ntdsutil & ADSIEdit utilities
before, but I should say never where I had the name issue you
have. It seems to me to fine as along as you clear AD of any
reference to the old DC first.

Good Luck,

razz

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by REZUMA In reply to RID master dc CRASH. NEED ...

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