iSeries Subsystem Information

A server program should run in the same subsystem that other server programs are running. For controlling resource use, such as main storage, a separate subsystem for running all server programs is usually best. This is also advantageous for allowing performance tuning, such as the number of page faults. Generally, iSeries^(TM) applications run in subsystem QBASE.

If the subsystem under which you want the server program to run was created with the system defaults, you will not have to add a work station entry to the subsystem description. If you do need to add a work station entry to the subsystem description, however, you can use the Add Work Station Entry (ADDWSE) command.

Before a work station is allowed to sign-on, it must be defined to a subsystem. In this case, the work station is the virtual terminal device (QPADEVnnnn) automatically created by the i5/OS^(TM) licensed program. The work station name, work station type, or *ALL must be specified in the subsystem description. Use the Display Subsystem Description (DSPSBSD) command to see the list of work station entries defined for a subsystem. The following command can be used to add all work station types to a subsystem named QBASE:

ADDWSE SBSD(QBASE) WRKSTNTYPE(*ALL)

For more information on automatically creating virtual terminals, see Setting the Number of Automatically Created Virtual Terminals.

Note: The ADDWSE command is valid only when the subsystem description is not active.