Common Replication Scenarios; Single-Master Replication - Red Hat DIRECTORY SERVER 7.1 - DEPLOYMENT Deployment Manual

Common Replication Scenarios

Common Replication Scenarios
You need to decide how the updates flow from server to server and how the
servers interact when propagating updates. There are four basic scenarios:
•

Single-Master Replication

• Multi-Master Replication
• Cascading Replication
• Mixed Environments
The following sections describe these methods and provide strategies for deciding
the method appropriate for your environment. You can also combine these basic
scenarios to build the replication topology that best suits your needs.
Single-Master Replication
In the most basic replication configuration, a supplier server copies a replica
directly to one or more consumer servers. In this configuration, all directory
modifications occur on the read-write replica on the supplier server, and the
consumer servers contain read-only replicas of the data.
The supplier server must perform all modifications to the read-write replicas
stored on the consumer servers. Figure 6-1, on page 117, shows this simple
configuration.
116 Red Hat Directory Server Deployment Guide • May 2005