Replication Extract uses the value of the Log_identifier parameter to connect to DB2. The Log_identifier value identifies either the DB2 group attach name or a single DB2 subsystem (Sybase recommends using the group attach name as data sources for replication.
In DB2, the group attach name functions as an alias for a group of transaction identifiers. Replication Agent can use the group attach name to replicate transactions from multiple members of a data-sharing group.
