The QMF for Windows server definition file (SDF) is an initialization (.ini) file that contains the technical information that QMF for Windows needs in order to connect users to database servers. Your QMF for Windows administrator is responsible for creating, configuring, maintaining and distributing the SDF for the QMF for Windows users.
Each database server that you are allowed to access is configured in the SDF. When configuring the database servers in the SDF, your QMF for Windows administrator assigned each database server a descriptive name that identifies the database. For example, Purchasing Database instead of the more technically correct name DB2P_01_PURCH.
When you open QMF for Windows the database servers that are available for you to use are listed in the Explorer window. You can select any of the database servers listed.
In some installations, you can have more than one SDF, each having different configurations of available database servers.