On Apr 6, 2006, at 2:31 PM, Lawrence Clark wrote:
Is the DB backup of any use after the next db backup is taken. The data on the volumes changes, and data is expired and tapes reclaimed...so what is the value of older db backups? ...
You're kidding...right? We make and retain multiple backup versions - of all kinds - because of the possiblities of both destruction and initially-undetected corruption. And Reusedelay keeps storage pool volumes intact for contingency purposes after expiration and reclamation. What would you do, for example, if damage or corruption in your TSM db lay dormant for several days, and was suddenly exposed by fresh activity in that area - and you had only the most recent db backup tape? The issues of data integrity assurance over time is well described in industry literature, and is certainly implicit in using a premier product such as TSM. Richard Sims