IBM® DB2® Enterprise Server is one of the supported databases for use with WebSphere Message Broker.
On Windows® only, the Derby database is embedded in the broker component. It is suitable for verification and evaluation only, and is enabled when you install the ODBC Drivers from the Launchpad as part of the WebSphere Message Broker product installation. For production systems, you must install one of the supported databases, for example, DB2 Enterprise Server. For information about how to install ODBC Drivers as part of the WebSphere Message Broker installation, see the Installation Guide.
For z/OS® systems, either DB2 Version 8.1 or DB2 Version 9.1 is required, but no other databases are supported. You must install DB2 before you install WebSphere Message Broker on z/OS systems.