On 2018-09-13 20:27, Ed Jaffe wrote:
A TCB-level JSAB is created *only* in those rare cases in which the application wishes to generate spin-off output -- usually with jobname/jobid that doesn't match the parent address space. The only IBM exploiters I can think of right now are APPC/MVS and z/OS UNIX. The only ISV exploiter of which I am aware is (E)JES, though I'm sure there are others.
Good info, thanks! It's easy to see that IAZXJSAB goes through the motions of checking for a TCB level JSAB, but IBM doesn't bother to state when/whether such a JSAB should exist.
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