DRM has its own, strict discipline for managing DBbackup tapes. Once fully implemented, according to product documentation, you should not interfere with it via Delete Volhistory or other non-DRM commands. The List archives contain past postings where partial implementations and meddling have resulted in problems. Your disaster recovery mechanisms should be allowed to proceed according to their discipline, and not be fooled around with.
Richard Sims http://people.bu.edu/rbs
