RECYCLEPERCENT: Specifying the maximum percentage of valid data on a backup tape

Explanation: RECYCLEPERCENT(pct) is an optional parameter specifying the percent-valid criterionb DFSMShsm uses to recycle tape backup volumes if you do not specify the PERCENTVALID parameter of the RECYCLE command. For pct, substitute a decimal number from 0 to 100.

When DFSMShsm invalidates a data set entry for a full backup volume and the percentage of valid data on the tape backup volume becomes less than or equal to pct, DFSMShsm writes the informational message, ARC0365I, in the command activity log. You then use the RECYCLE command to recycle all eligible tape backup volumes.

For a discussion of how DFSMShsm calculates percentages based on valid blocks, refer to Managing DFSMShsm media.

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 is 20%.
Note:
  1. DFSMShsm ignores the RECYCLEPERCENT parameter of this command and the PERCENTVALID parameter of the RECYCLE command when you use the RECYCLE command to recycle specific backup volumes.
  2. DFSMShsm also uses this value for migration level 2 tape volumes when the ML2RECYCLEPERCENT parameter of the SETSYS command has not been specified.
Parent topic: Optional parameters of the SETSYS command