Replication Server

A Replication Server at each site coordinates data replication activities for local data servers, and exchanges data with Replication Servers at other sites.

A Replication Server:

Receives primary data transactions from databases via Replication Agents and distributes them to sites with subscriptions for the data
Receives transactions from other Replication Servers and applies them to local databases

Replication Server system tables store information needed to accomplish these tasks. The system tables include descriptions of replication definitions and subscriptions, security records for Replication Server users, routing information for other sites, access methods for the local databases, and other administrative information.

Replication Server system tables are stored in an Adaptive Server database called the Replication Server System Database (RSSD), or an SQL Anywhere® (SA) database called the Embedded Replication Server System Database (ERSSD). An RSSD or ERSSD is assigned to each Replication Server. An Adaptive Server data server with an RSSD can also store application databases. For more information, see the Replication Server Administration Guide Volume 1.

Use Replication Command Language (RCL) or the Replication Manager plug-in of Sybase Central™ to manage information in Replication Server. You can execute RCL commands, which resemble SQL commands, on Replication Server using isql, the Sybase interactive SQL utility. The Replication Server Reference Manual is the complete reference for RCL. You can find information about Replication Manager and Replication Monitoring Services in the Replication Server Administration Guide Volume 1 and in the online help for Replication Manager.