Required parameters

TYPE=TAPE: Specifies a request related to the TCDB.
FUNC=OLN: Specifies a request to obtain information for a given library.
LIBNAME=library-name: Specifies the name of a character variable (eight-byte length) that contains the fully-specified library name. The library name must be left justified in the field and padded on the right with blanks.
LIBID=library-ID: Specifies the name of a character variable (five-byte length) that contains the library ID (sequence number) associated with the library on the ISMF library define panel.

Rule: You must specify either LIBNAME or LIBID, but you cannot specify both.