gtpc3m1eConcepts and Structures

Multiple Database Function (MDBF) Overview

The multiple database function (MDBF) of the High Performance Option (HPO) feature provides the user with the ability to:

The use of MDBF introduces the concepts of subsystems (physical separation of data) and subsystem users (logical separation of data). Figure 27 shows these concepts.

The reasons for separation are those that the user installation requires, and do not necessarily contribute to meeting the performance objectives of the TPF system. An example of separating data files is an enterprise that provides a reservation service to multiple hotels; the enterprise can choose whether to separate files of data related to one hotel physically or logically from those of another hotel.

Figure 27. Multiple Database Function (MDBF)