Subsystem description attributes

Subsystem description attributes are common overall system attributes. When you create a subsystem, the first step is to define the subsystem attributes.

Subsystem attributes include:

• The name of the subsystem description and the library where it is stored
• All of the memory pool definitions that this subsystem uses

  A subsystem definition can have a maximum of 10 memory pool definitions specified. Included in the subsystem definition are:

  • Pool definition identifier: This is the identifier inside the subsystem description, of the storage pool definition.
  • Size: This is the size of the storage pool expressed in KB (1K=1024 bytes) multiples and is the amount of main storage that the pool can use.
  • Activity level: This is the maximum number of threads that can run at the same time in the pool.
• The maximum number of jobs that can be active in the subsystem at the same time
• A text description of the subsystem description
• The name and library of the signon display file that is used to show signon displays at work stations that are allocated to the subsystem
• A subsystem library name that you can use if you want to specify a library that should be entered ahead of other libraries in the system portion of the library list (This parameter allows you to use a secondary language library.)

Also included in the subsystem description is information about authority levels to the subsystem. This information is kept by Security and is not stored with the other attributes of the subsystem description. You can view the subsystem description authority by using the Display Object Authority (DSPOBJAUT) command.