If you have a vendor or home-grown subsystem type that has a qualifier
other than the IBM® supported
ones, it could use the subsystem parameter. You should check your
subsystem documentation to determine whether your subsystem supports
the subsystem parameter, and in what parameter format.
Because the subsystem parameter is up to 256 characters long, you
can nest to use more than the limit of eight characters. See Organizing work for classification for further information on how
to nest using the start position.
- DB2®
- The subsystem parameter, if any, associated with the originator
of the query.
- DDF
- The subsystem parameter. This qualifier has a maximum length
of 255 bytes. The first 16 bytes contain the client's user ID.
The next 18 bytes contain the client's workstation name. The remaining
221 bytes are reserved.
Note the following:
- If the length of the client's user ID is less than 16 bytes,
use blanks after the user ID to pad the length.
- If the length of the client's workstation is less than 18
bytes, use blanks after the workstation name to pad the length.
- IWEB
- A 47-byte string formatted as follows:
- 1-8
- Subsystem name
- 9
- Blank
- 10-24
- Source IP address
- 25
- Blank
- 26-40
- Target IP address
- 41
- Blank
- 42-47
- Target port
For more information, see Internet Connection Server User's Guide.
- MQ
- The 32-byte application_environment_name from
the APPLICID attribute of the process definition associated with the
WLM-managed queue.
- SOM
- A 246-byte string consisting of two 123-byte fields:
- Field 1 — class name
- Field 2 — method name
For more information, see z/OS® SOMobjects® Configuration
and Administration Guide.
- STC
- Indicates the system-provided service class name that will be
assigned if a started task created with the high dispatching priority,
privileged, or system task attribute is not assigned to a service
class.
Values:
- SYSTEM — Started task was created with high dispatching
priority attribute.
- SYSSTC — Started task is privileged or is a system task.
- (blank) — Started task was not created with the high dispatching
attribute, is not privileged, and is not a system task.
Note: Subsystem Parameter Groups can be used
as a work qualifier for subsystem types DB2, DDF, IWEB, MQ, SOM but
not for subsystem type STC. See
Using groups for
further information.