Modify job request types

The IAZSSJM modify job SSI does not require callers to be PSW key/state authorized. The IAZSSJM SSI does not support being broadcast, but it can be directed to any subsystem, including subsystems that run independently of any JES environment.

In z/OS 2.1, SSI85 supports two functions: modifying a job and any memory management that is required by the request. IAZSSJM supports the same filtering capabilities as Extended Status SSI 80 (macro IAZSSST).

IAZSSJM supports all of the following actions against jobs (JQEs):

Modify job characteristics ($T) – specifically job class, priority (absolute or relative), SYSAFF (replacement list of JES members or MVS systems), service class, WLM scheduling environment or offload status (OFFS=).
Hold a job ($H)
Release a job ($A)
Purge a job ($P)
Cancel a job ($C) – with options to purge, dump, force or ARM restart.
Restart a job ($E) – with the cancel or step and hold options
SPIN a job ($T,SPIN) – with the optional DDNAME option.
Change execution node ($R XEQ) – only before the execution phase.
Start a job ($S)

Each of these items is an ACTION on the modify job function. Only one action is permitted per SSI call, but the action can operate on an arbitrary number of jobs.

Additional action-dependent data is included with a mask to indicate which fields are set. For example, to modify the job class for a job, a bit indicates that a new class was specified, with a new field for the updated class. Flags are provided to specify options, such as the purge option on the cancel action.