To provide quick and efficient directory services to clients across the enterprise, clients should have the data that they require most frequently within close proximity. For example, to provide the same local directory services to clients in London as those needed locally by clients in Taipei, it is necessary to replicate the directory data between the DCs that provide those services. Understanding replication leads to a site and domain design that replicates efficiently enough to support the enterprise.
Multi-master means just that; no one master source manages directory data. Unlike Windows NT 4.0, where the Primary DC is that master of the domain database and the Backup DCs cannot write to the directory, ...