Environment: TSM server 3.7.1 on MVS

Analysing the number of VTS tapes used to backup the servers of my client I
remarked that no VTS was used querying the BACKUPS table but querying the
VOLHIST table did show some old tapes. Executing a DEL VOLHIST type=STGD will
delete all the delete references for all tapes. Is there a possibility to
cleanup the volhistory table without destroying still valuable information?

Thanks in advance,

Michel Engels
TSM Consultant
Devoteam Belgium