For Jobs (or Warning Messages)

The library can be any standard cataloged partitioned data set (PDS or PDSE), LIBRARIAN or PANVALET. The record length must be 80.

The library and the member do not have to exist when the job production parameters are defined. Their existence is checked by Control-M before actual submission of the job.

If, during the access to a library by Control-M (before submission), the library is held exclusively by another user, such as a TSO user or job, the monitor tries to access the library every few seconds until the library is released and the job can be submitted. If the library is migrated, for example, through HSM, Control-M remains in a WAIT state until the library is recalled.

Use of the library name DUMMY is intended for scheduling events, for example, adding a prerequisite condition without actually running the job. If the library name DUMMY is used, the job is not submitted; submission and sysout checking are skipped. In this case, the job is assumed to have ended OK (ON PGMST...DO processing is not performed), and Post-Processing parameters associated with an ENDED OK status are activated (OUT, SHOUT WHEN OK).

If the library name is GENERAL:

• The job is submitted from the library referenced by the DALIB DD statement of the Control-M procedure. This library must be a partitioned data set or a concatenation of partitioned data sets.
• The standard ISPF Editor cannot process more than four concatenated libraries. The editor saves the edited member in the first library in the concatenation.

  Control-M Exit CTMX014 (the CTMX014G member in the IOA SAMPEXIT library) enables you to bypass these limitations if the members are going to be edited online through the J (JCL) option in the Job List screen or the Active Environment screen.

• The prefix USER= must be specified when a special type of user library is used. When using this prefix, the member is not read by Control-M using the normal mechanism. Instead Control-M submission Exit CTMX002 must be coded to handle access and submission of the library and member. In such cases, the Control-M monitor ignores the data specified in the MEMLIB/MEMNAME parameters; however, the substring following the USER= may be used by the exit. For examples of the exit, see the IOA SAMPEXIT library.

When specifying option J (JCL) in the Job List screen or the Active Environment screen in order to edit the JCL member, Control-M must determine which library (MEMLIB or OVERLIB) to use.

Note: The algorithm for this decision is described in Editing A Member through The J (JCL) Option.