XADM: Steps Performed During Knowledge Consistency Check

 Last reviewed: December 1, 1997
Article ID: Q174758
The information in this article applies to:
  • Microsoft Exchange Server, versions 4.0, 5.0, and 5.5

SUMMARY

The purpose of this article is to explain the steps you perform when you run a knowledge consistency check (KCC) on a Microsoft Exchange Server computer.

MORE INFORMATION

When you run a KCC either automatically or from the directory service general page of a Microsoft Exchange Server computer, perform the following checks and steps:

  1. Bind to the local server.
2. Determine the names of other Exchange Server computers in the local 
   server's site.
3. Bind to another server in the site. 4. Check whether this second server has the same server name as any that 
   were obtained in Step 2. If not, synchronize the Configuration naming
   contexts in both directions, and repeat with another server until they
   are all done or one of the server names matches.
5. Search the local server for all the writable naming contexts (NC). 6. For each NC, check that there are Reps-to and Reps-from values for each 
   server in the site. Fix any missing links.
7. Search the local directory under the local site's directory-replication 
   container for connectors.
8. For each connector found, determine whether there is a corresponding 
   remote connector locally. In other words, see whether there is a replica
   of the connector in the other site that points back to your local site.
9. If there is a local copy of the remote connector, update the inbound 
   sites on the local connector to match the remote connector's outbound
   sites.
10. Go through the local connectors and construct a list of all sites 
   replicated in from all the connectors.
11. Go through the connectors and ensure that they all replicate out all of 
   the inbound sites, plus your local site, minus the sites coming in on
   that connector.
12. Search the local directory service for non-writable replicas. 13. Check that you have all the replicas described by the local connectors, 
   add any that are missing, and remove any that you should not have.
14. Search the local directory service for authorizations. 15. Verify that you have all the authorizations as described by the 
   connectors, and remove any that you should not have.
16. Check that for each intersite replica that you replicate to this 
   directory service, you replicate on to all other servers in the site.
   Remove any replicas to non-existent servers.
17. Take replication responsibility for objects last modified by servers 
   that have been removed from the site. This is done on a random basis to
   avoid all the servers in the site adopting the same server's objects at
   the same time.
Additional query word: KCC 
Keywords          : XADM kbusage
Version           : WinNT:5.5
Platform          : WINDOWS
Issue type        : kbhowto

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Last reviewed: December 1, 1997
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