On 6/12/2014 10:12 AM, m.roth@5-cent.us wrote:
We use two methods: for the drives that are totally dead, or*sigh* the SCSI drives, they get deGaussed. For SATA that's still running, we use DBAN.*Great* software. From what I've read, one pass would probably be good enough, given how data's written these days. With my name certifying it, I do paranoid, and tell DBAN the full 7-pass, DoD 5220.22-M. I *really* don't think anyone's getting anything off that.
if the drive has remapped tracks, there's stale data on there you can't erase with DBAN.
We don't have any SSDs, so I can't speak to that. Bet you could deGauss them, easily enough. Or maybe stick 'em on a burner on a stove to get over the Curie point....*
degaussing would do nothing to flash memory, its semiconductor, not magnetic.