Are you looking to add an extra measure of security in the knowledge that your TPC database backups are a valid means of recovering your TPC server after an unexpected hardware failure or operating system malfunction?
The following document provides a step to ensure that your DB2 backup is a valid, usable file: http://www-01.ibm.com/support/docview.wss?uid=swg21633975
I'd highly recommend adding this step to your periodic/scheduled TPC Database backup routine. Finding out that your database backup isn't a valid means of disaster recovery when you need it is no fun. This will help assure that this doesn't happen.