Question : DC 2003 KCC database is corrupted

Hi Guys,

I got this following error when i try to force a replication of a server that is not replicating.
It also gives an I/O error, we fixed the RAID However the KCC database is corrupted( i think AD database is corrupted)
how can i fix this problem and force a replication or overrite from other DC

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Event Type:      Error
Event Source:      NTDS KCC
Event Category:      Knowledge Consistency Checker
Event ID:      1311
Date:            13/03/2006
Time:            10:38:01
User:            NT AUTHORITY\ANONYMOUS LOGON
Computer:      TestBTFS01
Description:
The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition.
Directory partition:
CN=Configuration,DC=Test,DC=local
There is insufficient site connectivity information in Active Directory Sites and Services for the KCC to create a spanning tree replication topology. Or, one or more domain controllers with this directory partition are unable to replicate the directory partition information. This is probably due to inaccessible domain controllers.
User Action
Use Active Directory Sites and Services to perform one of the following actions:
- Publish sufficient site connectivity information so that the KCC can determine a route by which this directory partition can reach this site. This is the preferred option.
- Add a Connection object to a domain controller that contains the directory partition in this site from a domain controller that contains the same directory partition in another site.
If neither of the Active Directory Sites and Services tasks correct this condition, see previous events logged by the KCC that identify the inaccessible domain controllers.
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I am Also getting Warnings with
event id 1566 and 1865
and also event id 1308 with following additional warning
Additional Data
Error value:
1127 While accessing the hard disk, a disk operation failed even after retries.

regards
Naren

Answer : DC 2003 KCC database is corrupted

http://technet2.microsoft.com/WindowsServer/en/Library/819bea8b-3889-4479-850f-1f031087693d1033.mspx

its a fairly interactive tool thats easy to work your way around    just run ntdsutil and follow the prompts for metadata cleanup
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