Use the MVS LIBRARY,REQUEST command to request information pertaining to the current operational state of the TS7700 Virtualization Engine, its logical and physical volumes, and its physical resources. This command can also be used to perform outboard operations at the library. Based on the operation requested, the library then returns information to the host that is displayed in a multi-line WTO (CBR1280I). The data displayed in the multi-line WTO reflects the data exactly as it is returned to the host by the library. For a detailed discussion of the operations that are supported and the keywords that can be specified, refer to IBM Redbooks, IBM System Storage Virtualization Engine TS7700: Tape Virtualization for System z Servers, and IBM Whitepaper, IBM Virtualization Engine TS7700 Series z/OS Host Command Line Request User's Guide.
The syntax of the command for the REQUEST function:
>>-+-LIBRARY-+--+-REQUEST-+--,library_name----------------------> '-LI------' '-REQ-----' >--,--keyword1-,--keyword2-,--keyword3-,--keyword4--------------> >--+----------------+------------------------------------------>< '-,L=-+-a------+-' +-name---+ '-name-a-'