The IT staff wiping the drive to their satisfaction should obviate that concern, I'd imagine. And the worst-case scenario would be that happening, and your pri

The IT staff wiping the drive to their satisfaction should obviate that concern, I'd imagine. And the worst-case scenario would be that happening, and your primary backup drive failing, and your running drive failing, on the day you get fired. A failed primary backup drive just means you're out a backup; it takes a failure of the drive you're backing up for the situation to achieve disastrous proportions.