The CHANGEVOLUME TSO subcommand updates details for a volume defined to DFSMSrmm. This diagram shows the syntax of the MEDIATYPE operand and the RECORDINGFORMAT operand for the CHANGEVOLUME TSO subcommand.

>>-+------------------------------+----------------------------->
   |            .-*-----------.   |   
   '-MEDIATYPE(-+-CST---------+-)-'   
                +-ECCST-------+       
                +-EHPCT-------+       
                +-HPCT--------+       
                +-+-MEDIA5-+--+       
                | '-ETC----'  |       
                +-+-MEDIA6-+--+       
                | '-EWTC---'  |       
                +-+-MEDIA7-+--+       
                | '-EETC---'  |       
                +-+-MEDIA8-+--+       
                | '-EEWTC--'  |       
                +-+-MEDIA9-+--+       
                | '-EXTC---'  |       
                '-+-MEDIA10-+-'       
                  '-EXWTC---'         

>--+-------------------------------------+---------------------><
   '-RECORDINGFORMAT--(--+-*--------+--)-'   
                         +-18TRACK--+        
                         +-36TRACK--+        
                         +-128TRACK-+        
                         +-256TRACK-+        
                         +-384TRACK-+        
                         +-EFMT1----+        
                         '-EFMT2----'        

To use the EFMT2 recording technology, you must specify the MEDIATYPE(MEDIA5, MEDIA6, MEDIA7, MEDIA8, MEDIA9, or MEDIA10) operand of the CHANGEVOLUME TSO subcommand.