>>-+------------------------------------+----------------------><
   |                         .-,---.    |   
   |                         V     |    |   
   '-+-RELBlockaddress-+--(----dsn-+--)-'   
     '-RELBLKA---------'                    

RELBLOCKADDRESS identifies the direct data sets (BDAM) whose names match the fully or partially qualified names specified (dsn). These direct data sets are organized by relative block address instead of TTR and are to be copied block by block. DFSMSdss updates the block reference count (the relative position of the physical record as stored on its track) of dummy records. This keyword applies only to direct data sets with fixed record formats and without standard user labels.

Restriction: If the data set is actually organized by TTR, the data set might become unusable.