ASA Database Administration Guide
Replicating Data with Replication Server
Data replication is the sharing of data among physically distinct databases. Changes made to shared data at any one database are copied precisely to the other databases in the replication system.
Data replication brings some key benefits to database users.
Replication makes data available locally, rather than through potentially expensive, less reliable and slower connections to a single, central database. Since data is accessible locally, you are always have access to data, even in the event of a long-distance network connection failure.
Replication improves response times for data requests for two reasons. First, retrieval rates are faster since requests are processed on a local server without accessing some wide area network. Second, competition for processor time decreases, since local processing offloads work from a central database server.
Sybase replication technologies
Replicate sites and primary sites
Replicate site components
Primary site components