The from DATA SET NAME field identifies the source that you are copying. It is primed with the value you specified on the Tape Library Application Selection panel. The from DEFINITION NAME field identifies the name of the tape library that you are copying. This field is primed with the value from the LIBRARY NAME field of the Tape Library List panel.

The to DATA SET NAME field identifies the target SCDS of the copy. It must be a name of an SCDS. It is primed with the value of the from DATA SET NAME if the from DATA SET NAME contains an SCDS name. It is primed with blanks if the from DATA SET NAME is ‘ACTIVE’. The to DEFINITION NAME field identifies the name of the tape library you wish to define. It is primed with blanks.

In the PERFORM ALTER field, you indicate if you want to change some of the attributes of the copy you are creating. If you specify Y for YES, you go to the pertinent Alter panel. If you specify N for NO, you remain on the COPY ENTRY PANEL, where you can perform another copy or return to the original library list panel.

When copying a tape library definition from one SCDS into another SCDS, you do not need to select the PERFORM ALTER option. In the case where a tape library definition is copied within the same SCDS, you must choose the PERFORM ALTER option because tape libraries in the same SCDS must differ from one definition to another.

When you have specified the values, press ENTER to perform the copy.