HP e3000 MPE/iX System Software Maintenance Manual (Release C.75.00) (30216-90344)

Chapter 7
Support Tools Manager (STM) for MPE/iX
Remote Execution
167
Distributed Structure
Efficient remote execution is possible because STM has a distributed structure. Figur e7-4 shows how the
parts of STM are distributed between the UI machine and the UUT. (This diagram also shows xstm, which is
only available on HP-UX.)
Figure 7-4 Diagram of STM's Distributed Structure
The UI system contains the binaries for the graphical, menu, and command line interfaces, as well as for the
Core UI which underlies them. The UI also contains the text to be displayed (message catalogs and help
volumes).
The Unit Under Test (UUT) contains the binaries for the support tools (Diagnose, FW Update, Exercise,
Expert, etc.) and the libraries which support them.
Improving Performance
This distributed design makes for good performance. This is because data and code reside on the machine
that makes use of them. The UI system has code for the UI, and message text for both the UI and support
tools. The UUT system has the support tool executables. Little text is passed between the two machines,
usually only the information required to locate a message.