Resubmitting jobs for restart
When you resubmit a job for restart, be careful with any DD statements
that might affect the execution of the restarted job step. The restart
routine uses information from DD statements in the
resubmitted job to reset files for use after restart.
About this task
If you want a data set to be deleted at the end of a
job step, give it a conditional disposition of PASS or KEEP (rather
than DELETE). This disposition allows the data set
to be available if an interruption forces a restart. If you want to
restart a job at the beginning of a step, you must first discard any
data set created (defined as NEW in a DD statement)
in the previous run, or change the DD statement to
mark the data set as OLD.
The system automatically repositions input data sets that are on tape or disk.