>>17263854For the job. it seems more professional.
As for doing it, you'll mostly be waiting for the dban to complete.
Frankly it's overkill anymore, due to data density it's become extremely difficult to recover much information. 3 wipe should do it fine.
>For any modern PRML/EPRML drive, a few passes of random scrubbing is the best you can do.^from Dban site.