You can produce an allied report by scanning your dsmaccnt.log to
report on large adds (Archive or Backup operations) over a long period
of time, by dividing quantity of data sent to the TSM server by the
number of objects, allowing you to identify nodes and users (but not
filespaces) involved in biggies.  This alone may be sufficient for
your needs; or you might use it to perform a more limited Select on
formidable tables.

   Richard Sims