When the job is initially brought into the queues and the USE-OVRD-LIB value is Y, the JCL is copied in from the special override library instead of the normal production library specified with the ID field on the DB.1 panel. The USE-OVRD-LIB value is then automatically reset to a value of N, to prevent that JCL from being used again.
The JCL that was copied in from the special override library is used until a successful completion of this run is accomplished. It can be altered using the QM.5 panel if necessary. When the job completes successfully, the JCL is then deleted from the special override library if the member name in the DB.1 panel field is the same as the job name.
Note: Your installation may choose to prevent the automatic deletion of JCL from the special override library. The OVJCL keyword in the OPTIONS statement in the CA WA CA 7 Edition initialization file can be used to prevent this automatic deletion. If this option is set, it applies to all CA WA CA 7 Edition jobs. For more information, see the OPTIONS statement in the Systems Programming Guide. Before using this option, you should read about alternate JCL libraries to see whether they are appropriate for your situation.
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