You do not need to purchase a copy of DB2 Connect™ to replicate data from DB2® for z/OS®, IBM® DB2 for IBM i, or IBM Informix® database servers.
DB2 database products do not include the technology to replicate to and from IBM Informix (IDS), therefore the DB2 database products use federation to first make IDS appear to be a DB2 database. The DB2 database product can then replicate data to and from the IDS database.
To use heterogeneous replication (non-IBM data sources) or Q replication, you must purchase IBM InfoSphere Replication Server.