If you delete a member from the CATEGORY profile, and that category is still specified in resource profiles, the resource profile listing (produced by the RLIST command, for example) shows an UNKNOWN category. To delete this category, enter the RALTER command with no category specified on the DELCATEGORY operand:

RALTER classname profile-name DELCATEGORY

To search for such profiles, enter the search command as follows:

SEARCH CLASS(classname) CATEGORY