On Thu, 28 Oct 2010 14:11:14 -0700 Garrett Cooper <gcoo...@freebsd.org> wrote:
> Unfortunately it's implied superficially by the 3 pass tort; but as > most people who understand magnetic disks know, unless you completely > obliterate a disk, wipe over it with random data enough times, > whatever, the content is still on the disk and retrievable via various > methods... I agree that this advice should be placed near the flag > itself so that people completely understand the implications of the > feature. I believe the only method 10-15 years ago would have been a scanning electron microscope, but that probably isn't possible with today's disks. Simply writing zeros once is enough to obliterate all the data (except for any remapped sectors). -- Bruce Cran _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
