Joined: 09 Aug 2008 Posts: 1631 Location: Mumbai, India
Posted: Mon Mar 14, 2011 2:09 pm Post subject:
I'm sorry - your question is not clear to me. May be CLASS in Job card would do, what you are loking for.
From the "z/OS Basics" manual:
The initiator is an integral part of z/OS that reads, interprets, and executes the JCL. It is normally running in several address spaces (as multiple initiators). An inititator manages the running of batch jobs, one at a time, in the same address space.
What does an initiator do?
In order to run multiple jobs asynchronously, the system must perform a number of functions:
Select jobs from the input queues (JES does this).
Ensure that the required datasets are available (this might mean mounting tapes).
Ensure that multiple jobs (including TSO users) do not conflict in dataset usage.
Ensure that sufficient disk space is available for output datasets.
Find the executable programs requested for the job.
Clean up after the job ends and then request the next job.
All this must be done in a manner that produces no deadlocks (contentions).
Most of this work is done by the initiator, based on JCL information for each job. The primary purpose of JCL is to tell the initiator what is needed for the job.
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