Each server described previously can be understood as a distribution chunk. The suffix that contains the naming context and the entries under ou=groups, is the same on each chunk. A multi-master replication agreement is therefore set up for this suffix across each of the three chunks.
For availability, each chunk is also replicated. At least two master replicas are therefore defined for each chunk.
The following illustration shows the Directory Server configuration with three replicas defined for each chunk. For simplification, the replication agreements are only shown for one chunk, although they are the same for the other two chunks.