Sun Java System Directory Server Enterprise Edition 6.3 Deployment Planning Guide

Redundancy at the Software Level

Failure in Directory Server or Directory Proxy Server can include the following:

These SPOFs can be mitigated by having redundant instances of Directory Server and Directory Proxy Server. Redundancy at the software level involves the use of replication. Replication ensures that the redundant servers remain synchronized, and that requests can be rerouted with no downtime. For more information, see Using Replication and Redundancy for High Availability.