The Mirror Activator solution includes the following Sybase software products:
Mirror Replication Agent
Replication Server
Mirror Replication Agent reads primary database transaction log devices to acquire transactions to replicate. Mirror Replication Agent is specifically designed to read remote (or mirror) log devices that reside on a separate platform from the primary data server and its devices. Mirror Replication Agent requires only read access to the mirror log devices. After acquiring transaction data from the mirror log devices, Mirror Replication Agent sends replicated transactions to Replication Server, for distribution to the standby database.
Replication Server provides the infrastructure for a Sybase transaction replication system. It manages the standby database, applying replicated transactions, and it maintains its own device-based queues to provide guaranteed transaction delivery. Replication Server also maintains its own system database, called the Replication Server System Database (RSSD), where it stores replication system data and metadata.
