Restrictions

Because the task is running under the master scheduler, you must note the following restrictions:

You cannot use any SYSOUT data sets. Use pre-allocated DASD data sets for the logs. This is because the master subsystem does not support SYSOUT data sets.
Allocated data sets should be stored on a DASD volume that is mounted by default, to ensure that the required data sets are available at IPL time. Depending on your catalogue, you might need to specify a unit and a VOLSER for each DD in the started task JCL and RUNSYSIN members.

Note: These restrictions are taken care of if, during region setup, you indicated that you want to run the region under the master subsystem.