SMS 2003 - Troubleshooting - 4918 Errors in SMS_SITE_COMPONENT_MANAGER
If you've recently upgraded your SMS infrastructure to SP2, you may have encountered repeating 4918 errors within the SMS_SITE_COMPONENT_MANAGER component. Here is a brief of how the error would read:
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Message ID: 4918
Systems Management Server cannot update the dNSHostName property for the existing object "cn=SMS-MP-Z13-LWSMSLWPRIM" in Active Directory. This property is used to publish fully qualified host names in Active Directory.
Possible cause: The Active Directory schema has not been extended with latest version of the SMS Active Directory classes and attributes.
Solution: Ensure the schema has been extended with the latest version of the SMS Active Directory classes and attributes. The schema can be extended with the tool "extadsch.exe" from the SMS directory on the SMS Site server that reported this message.
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The resolution presented is correct in this situation. SP2 for SMS 2003 has an added feature of utilizing the Site Server FQDN's within Active Directory. To use this function, you must extend the Active Directory Schema. The tools you need are provided with the SP2 upgrade files. You can extend the schema using extadsh.exe or with the provided LDIF file using ldifde.exe. I've provided links to explanations for both methods, but I prefer using extadsh.exe.
*** It should be noted that it is NOT necessary to extend the schema for SP2 if you do not plan on taking advantaged of the extended features. These errors are not malicious and will not affect the operation of your site.