Replication System Components

A replication environment consists of components and resources that must be present or assembled before you can run Replication Server.

Each component uses the Open Client/Server™ Interface to communicate with other components.

This Replication Server Domain diagram illustrates a simple configuration for a WAN-based distributed database system based on Replication Server.

Replication Server Domain

• Replication Server
  The Replication Server at each primary or replicate site coordinates data replication activities for local data servers and exchanges data with Replication Servers at other sites.
• Replication Server System Database (RSSD)
  The Replication Server System Database (RSSD) is a database that contains the Replication Server system tables.
• Adaptive Server or Other Data Server
  Adaptive Server or other data servers in a replication system, manage databases containing either primary or replicate data.
• Replication Agent
  A Replication Agent notifies Replication Server of actions in a primary database that must be copied to other databases.
• ExpressConnect for Oracle
  ExpressConnect for Oracle provides direct communication between Replication Server and a replicate Oracle data server.
• Enterprise Connect Data Access
  Sybase Enterprise Connect™ Data Access (ECDA) is an integrated set of software applications and connectivity tools that allows you to access data within a heterogeneous database environment.
• Client Applications
  A client application is a program that accesses a data server.
• System Management Tools
  You can use system management tools such as Sybase Control Center and Sybase Central™, to manage your replicaton system.