Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2
Active Directory Replication Model Technical Reference
The Active Directory directory service replication model ensures that Active Directory data on one ___domain controller is consistent with the replica of the same data on other ___domain controllers in the same ___domain. The Active Directory replication model determines how changes to Active Directory data are propagated and tracked automatically between ___domain controllers. The replication model allows directory data on each ___domain controller to be updated directly. Each ___domain controller maintains replication metadata that indicates the update status both for itself and relative to other ___domain controllers. In addition, the replication model allows each ___domain controller to request (pull) only changes that need to be replicated and to forward changes to other ___domain controllers that need them.
Note
In Windows 2000 Server and Windows Server 2003, the directory service is named Active Directory. In Windows Server 2008 and Windows Server 2008 R2, the directory service is named Active Directory Domain Services (AD DS). The rest of this topic refers to Active Directory, but the information is also applicable to AD DS.
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