On Thu Jun 12 17:21:43 UTC 2014, John R Pierce pierce at hogranch.com wrote: > On 6/12/2014 10:12 AM, m.roth at 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. An EMP gun on the other hand. . . -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB at Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3