HP-UX Directory Server 8.1 deployment guide

Figure 9-3 Server topology for Example Corp.
Modify requests from compatible servers are routed to the appropriate consumer server. The
consumer server uses smart referrals to route the request to the supplier server responsible for
the master copy of the data being modified.
9.1.5 Local enterprise replication design
Example Corp. decides to use a multi-master replication design to ensure the high availability
of its directory data. For more information about multi-master replication, see “Multi-master
replication”.
The following sections provide more details about the supplier server architecture and the
supplier-consumer server topology.
9.1.5.1 Supplier architecture
Example Corp. uses two supplier servers in a multi-master replication architecture. The suppliers
update one another so that the directory data remains consistent. The supplier architecture for
Example Corp. is described below:
128 Directory design examples