Darik's Boot and Nuke ("DBAN") is a self-contained boot image that securely wipes the hard disks of most computers. DBAN is appropriate for bulk or emergency data destruction.
No longer in the spirit of open source, killed off for Blancco's commercial interests... money talks ? lol
If you find that you are booting this from a device like usb or iso and you select quick dban option without selecting drives all attached drives will be wiped. That said I did get errors trying delete standard sata drives in some pc's that wouldn't get wiped and ended up using a Ubuntu Live CD and the format "write 0's" option under the Disks program to work. So I am guessing there are some error conditions where the dban operation can fail. Though the upside of using this program is for the multipass and the speed so if you get it working its clutch.