Directory Server replication prevents a single point of failure for applications that are using these protocols to access identity data. Directory Server supports a theoretically unlimited number of masters and read-only consumers in a replicated environment across both local and wide area networks. Special features of the replication protocol allow for optimizations when replicating data over high-latency networks. For more information, see Using Replication and Redundancy for High Availability.
On Solaris platforms, Directory Server supports clustering, a pre-packaged high availability hardware and software solution. For more information, see Using Clustering for High Availability.