The Directory Server Access Control Model
Understanding the Directory Server Schema
Understanding Directory Server Plug-Ins
Basic Replication Architecture
Directory Server Change Processing
Historical Information and Conflict Resolution
What is a Replication Conflict?
Purging Historical Information
Schema Replication Architecture
Replication Status Definitions
Full Update Status and Bad Generation ID Status
Replication Groups in a Multi-Data Center Deployment
Safe Read Mode and Replication Groups
Assured Replication Connection Algorithm
Assured Replication and Replication Status
Assured Replication Monitoring
The directory server replication model is a loosely consistent, multi-master model. In other words, all directory servers in a replicated topology can process both read and write operations.
Replication is built around a centralized publish-subscribe architecture. Each directory server communicates with a central service, and uses the central service to publish its own changes and to receive notification about changes on other directory servers. This central service is called the replication service.
The replication service can be made highly available by using multiple server instances running on multiple hosts. Within the replication architecture, a server instance that provides the replication service is called a replication server. A server instance that provides the directory service is called a directory server.
The topics in this section describe the replication architecture and the various elements that make up this architecture.