Explanation: MASTERCATALOG and USERCATALOG are mutually exclusive parameters that you use to audit data set entries in a catalog, which is a source of data set names.
MASTERCATALOG is specified to audit the master catalog.
USERCATALOG(catname) is specified to audit a particular user catalog. For (catname), substitute the name of the user catalog you want DFSMShsm to audit.
Defaults: None.