Automatic Class Selection (ACS) Routine Adjustments

To extract the Management Class for a tape data set, Control-M/Tape invokes the DFSMS Automatic Class Selection (ACS) routines, usually several times. ACS parameter &ACSENVIR can be used to distinguish between Control-M/Tape activation’s of the ACS routines and other activation’s (probably DFSMS) of these routines. The value of &ACSENVIR also helps distinguish between the different events in that Control-M/Tape invokes the ACS routines.

Since DFSMS activates the Management Class (MC) ACS routine only if a Storage Class (SC) is assigned for the data set, adjustments are made to both the Storage Class ACS routine and the Management Class ACS routine. The Storage Class ACS routine should assign a Storage Class for the tape data set, and the Management Class ACS routine should assign the tape data set a Management Class.