ASA Database Administration Guide
  Replicating Data with Replication Server
    Introduction to replication

Replicate site components

You can use Adaptive Server Anywhere as a replicate site with no additional components.

The following diagram illustrates the components required for Adaptive Server Anywhere to participate in a Replication Server installation as a replicate site.

• Replication Server receives data changes from primary site servers.

• Replication Server connects to Adaptive Server Anywhere to apply the changes.

• Adaptive Server Anywhere makes the changes to the database.

Asynchronous procedure calls 

The Replication Server can use asynchronous procedure calls (APC) at replicate sites to alter data at a primary site database. If you are using APCs, the above diagram does not apply. Instead, the requirements are the same as for a primary site.