How can i delete an ex DC from AD

[vekkas]

My ex DC appears again in AD Sites and Services. When i
try to delete it i got the message "The DSA object cannot
be deleted"
Also, in Directory Service log i have following message
every 4 hours "The checkpoint with the PDC was
unsuccessful. The checkpointing process will be retried
again in four hours. A full synchronization of the
security database to downlevel domain controllers may take
place if this machine is promoted to be the PDC before the
next successful checkpoint. The error returned was: The
DSA operation is unable to proceed because of a DNS lookup
failure."
I think both these things are in the relationship. Am I
true? Anybody helps me?
Thanx

 

[Lemon]

How did you remove the ex DC ? did you run dcpromo to
depromote it. ?

 

[Simon Geary]

Follow the metadata cleanup process in this KB
http://support.microsoft.com/?id=216498

 

[Guest]

Hi Vekkas,
Actually , it is like this .
To remove a dc from the AD you just have to move all the FSMO roles to another server and do a demotation using dcpromo. If you experience any error and you still have any entrys inside the AD about the DC you demoted then you should do a metadatabase cleanup.

Actually, as allways and due the grateness of Microsoft you will find lots of KB on both demoting and meatadatabase cleanup in the technet.

Knowledge is power
MS_d3vil

 

[Jimmy Andersson [MVP]]

You need to do a metadata cleanup in your environment and remove all
records that your DNS have about this removed DC (don't forget to check
_msdcs). You also might need to delete the object in the Sites container
with ADSI Edit or Ldp.

http://support.microsoft.com/default.aspx?scid=kb;EN-US;216498

Regards,
/Jimmy