SCRATCHFREQUENCY: Specifying how long to retain list data sets

Explanation: SCRATCHFREQUENCY(days) is an optional parameter specifying the number of days DFSMShsm should keep list data sets. For days, substitute a decimal number from 0 to 9999 specifying how long DFSMShsm should keep an unused list data set. If you specify 0, DFSMShsm scratches list data sets during the next space management of the volume. If the last qualifier in a data set name is .LIST, .OUTLIST, or .LINKLIST, the data set is a list data set. DFSMShsm scratches list data sets during volume space management after the specified number of days have passed since anyone used the data sets.

SMS relationship: Parameter does not apply to 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 9999 days.