MAXRECYCLETASKS: Specifying the maximum number of active recycle tasks

Explanation: MAXRECYCLETASKS(nn) is an optional parameter specifying the maximum number of tape processing tasks initiated by a single RECYCLE request. For nn, substitute a decimal number from 1 to 15 for the number of tasks to initiate. The number of tape processing tasks can be changed dynamically, even while DFSMShsm is processing a RECYCLE request. This allows you to free tape drives for uses other than recycle processing, should the need arise. Each task that moves data requires two tape drives, one for input and one for output. In a duplex tape environment, each task moving data requires three tape drives, one for input and two for output.

SMS relationship: Parameter has the same meaning when applied to SMS-managed or non-SMS-managed DASD volumes or data sets.

SETSYS default: None.

DFSMShsm default: If you do not specify this parameter on any SETSYS command, the DFSMShsm default for nn is 2.

Note: Only one RECYCLE command is processed at a time when you use the VOLUME parameter of the specific RECYCLE command. An MVS™ image can process only one RECYCLE command at a time. If you issue a generic RECYCLE command, and multiple volumes are eligible, then MAXRECYCLETASKS is used.