Activating CA 1 and Daily Batch Processing › Remove Tapes from Cycle Control with TMSCYCLE › Cycle Abuse

Cycle Abuse

Cycle abuse is the difference between any two Cycle-Controlled tapes with the same data set name. Using a JCL parameter to TMSCYCLE, you can identify abuse of Cycle Control.

Assume, for example, that a data set uses LABEL=EXPDT=99005 in JCL for a five-cycle rotation. A specification of LABEL=EXPDT=99050 was accidentally used during the most recent creation of the data set. When the data set created with CYCLE/050 becomes the oldest, TMSCYCLE keeps 50 creations of the data set until the 51st is created. A cycle abuse setting of 1 effectively allows you to know if the Cycle Control value has changed in any way; however, you can use a higher setting.