Remember that DB2 backups come in as Backup data, not Archive.  So after
the DBA expires the file, you will keep it around for the Retain Only
number of days.  If the copy group for the management class they are stored
under has that set at 90 days, you'll start getting tapes back in about 3
months.

There are some tricks to this, so if you need help, you can probably get 3
or 4 different methods from the list here.

Nick Cassimatis
nickpc AT us.ibm DOT com