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PDC to a BDC

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9 replies

by mndthegap1

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I took the PDC offline and promoted the BDC to the now new PDC on the domain. My question is once i put the original PDC back online will it be demoted to a BDC, and if not what can i do to make it a BDC now ????

9 replies

by gigelul

In normaly circumstances with both PDC and BDC online you don't have any problem to promote a BDC as PDC. The old PDC automaticaly is demoted to BDC.
If I understand correct your issue now you have 2 PDC, one online and one offline.
If don't want to risk some tests, you can put the HDD of the offline PDC in other machine, copy all you data, put it back and after that you can perform a fresh install as BDC.

by nettek

When you bring the other PDC on line it will not automatically demote, and you will see error messages in Event Viewer. To find out how to demote it to a BDC, refer to
Q167248 at support.microsoft.com

by mysguyded38

When the original PDC comes back online you will have to demote it manually through server manager and leave the old BDC as the new PDC.

by gperrie

Just bring it back online, go into Server Manager, choose the one you want to demote(you can choose which one, it doesn't matter) then choose Demote from the menu. The Demote option will appear in place of Promote to Primary DC.

This is the onlytime the Demote option is available.

Gavin

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