DC failure corrupt DB...

[Guest]

Have Windows2000 server w/ corrupt AD db on secondary DC. No recent backups but the main Domain Controller is funtional. Is it possible to just demote the failed DC remove NTDS and then repromote the server w/ DCPROMO? Will it then resync with the main DC ? Thanks for any help

 

[Chriss3]

Yes. First try for a successfully demotion using DCPROMO else have a look at
the articles below:

HOW TO: Remove Orphaned Domains from Active Directory Without Demoting the
Domain Controllers:
http://support.microsoft.com/default.aspx?kbid=251307

HOW TO: Remove Data in Active Directory After an Unsuccessful Domain
Controller Demotion:
http://support.microsoft.com/support/kb/articles/Q216/4/98.ASP

--
Regards
Christoffer Andersson

No email replies please - reply in the newsgroup

Have Windows2000 server w/ corrupt AD db on secondary DC. No recent

backups but the main Domain Controller is funtional. Is it possible to just
demote the failed DC remove NTDS and then repromote the server w/ DCPROMO?
Will it then resync with the main DC ? Thanks for any help

 

[Guest]

Can't run DCPROMO on failed server because AD is corrupt. Had to come up into Safe Mode Restore AD Mode. Appreciate any help. Thanks

 

[Chriss3]

You have to use ntdsutil. I think the steps are in the follow KB:

HOW TO: Remove Orphaned Domains from Active Directory Without Demoting the
Domain Controllers:
http://support.microsoft.com/default.aspx?kbid=251307

--
Regards
Christoffer Andersson

No email replies please - reply in the newsgroup

Can't run DCPROMO on failed server because AD is corrupt. Had to come up

into Safe Mode Restore AD Mode. Appreciate any help. Thanks

 

[Guest]

Thanks Christopher. I guess my only option then is to reinstall Windows 2000 and then DCPROMO to create Domain Controller. Is there a way to view the current configuration between the primary DC and the 2nd DC? If it was setup as a add'l DC on an existing Domain or a new child etc? Also the current FSMO settings? thanks again

 

[Chriss3]

Since Active Directory Database seems to be corrupted for you at your
promoted Domain Controller in the forest that by default hold all five FSMO
roles. You can't move the FSMO roles and have to look for seizure the FSMO
roles to another Domain Controller but before you take this step. You should
successfully remove this corrupted Domain Controller from the Active
Directory see the article below to do so.

HOW TO: Remove Data in Active Directory After an Unsuccessful Domain
Controller Demotion:
http://support.microsoft.com/default.aspx?scid=kb;EN-US;216498

See the follow articles for seizing the roles to another Domain controller.
Using Ntdsutil.exe to Seize or Transfer FSMO Roles to a Domain Controller:
http://support.microsoft.com/default.aspx?scid=kb;en-us;255504

Flexible Single Master Operation Transfer and Seizure Process:
http://support.microsoft.com/default.aspx?scid=kb;en-us;223787

FSMO Placement and Optimization on Windows 2000 Domain Controllers:
http://support.microsoft.com/default.aspx?scid=kb;en-us;223346

If the database are corrupted and Active Directory can't start last changes
supposed to be on another Domain Controller.

--
Regards
Christoffer Andersson

No email replies please - reply in the newsgroup

Thanks Christopher. I guess my only option then is to reinstall Windows

2000 and then DCPROMO to create Domain Controller. Is there a way to view
the current configuration between the primary DC and the 2nd DC? If it was
setup as a add'l DC on an existing Domain or a new child etc? Also the
current FSMO settings? thanks again

 

[Guest]

Chris - thanks for all the help