If your database is at application identity mapping stage 3, no generic profiles in class UNIXMAP, NOTELINK, or NDSLINK should exist. If you find one, you can ignore it just as RACF® does, or you can delete it using RDELETE. For example:

RDELETE UNIXMAP U1

If the mapping profile contains lowercase letters, you cannot specify them on the RDELETE command. You must use BLKUPD or RACROUTE to delete the profile.