DB2 is an IBM program product that helps you leverage your information by delivering the performance, scalability, reliability, and availability you need for the most demanding e-commerce, CRM, BI, and ERP applications. Multiple Device Manager (MDM) uses DB2 for persistent storage needs. A copy of DB2 is shipped with MDM, and must be installed and configured for use with MDM.
DB2 UDB Workgroup Edition is a multiple-user version of the DB2 product. It provides the ability for remote clients to access data and perform administration on a DB2 workgroup server and provides Web access through Net.Data(R).