We have a Windows 2003 server DC1 which is our primary DC holding all FSMO roles. It also is a DNS server for our domain domain.local which is an active directory integrated zone.

We also have a Windows 2008 DC name DC2

All servers have the correct DNS entries etc. However on all dns servers there are event id 4515 indicating there are duplicate zones in separate directory partitions and only one will be used until the other is removed.

And I see these, there is a zone for domain.local under the default naming partition CN=System, CN=MicrosoftDNS, DC=domain.local. As well as the DomainDNSZones partition DC=DomainDNSZones, DC=DOMAIN, DC=local, CN=MicrosoftDNS

It seems that the partition in the Default Naming partition is the one which is being used currently. Which one should be in use? How do I make the EventID 4515's go away?

EventID 4515: http://support.microsoft.com/kb/867464

Thanks