I believe that DRM will only expire DBBackup VIRTUAL volumes, not normal
DBBackup tape volumes. This is for server-2-server DB backups. You have to
do a DEL VOLH T=DBB TOD=TODAY-n. I have this in a server script that does
all my server backup commands:

ba db type=full devclass=3590off scratch=yes wait=yes
/*------------------------------------------------------------------*/
/*   If the backup worked, then delete volhistory...                */
/*------------------------------------------------------------------*/
if(rc_ok) -
    del volh t=dbb tod=today-8


Bill Boyer
DSS, Inc.