[GRLUG] Disk scrubber

[Benjamin Flanders]

On 7/25/06, Michael Mol <mikemol at gmail.com> wrote:
> On 7/25/06, Tim Schmidt <timschmidt at gmail.com> wrote:
> > On 7/24/06, Michael Mol <mikemol at gmail.com> wrote:
> > > I read somewhere that shred's "doing more" is targeted at older-style
> > > hard drives, like FM, MFM and others, and most of its routines aren't
> > > any more effective on a modern disk than a simple overwrite.
> > >
> > > In essence, most of shred's passes were each designed for a different
> > > style drive.
> > >
> > > Source:
> > > http://www.cs.auckland.ac.nz/~pgut001/pubs/secure_del.html
> >
> > Possible.  However, I have used some professional data recovery
> > software and witnessed data recovered from a 0'd drive (0'd by WD
> > Diagnostics Disk).  Extra steps are welcome in my opinion.
> >
> > --tim
>
> Did that work by reading 0'd sectors, or by reading reallocated
> sectors?  Just curious.
>

I always thought they could read the latent magnetic charge left over
from the previous bit.

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>
> --
> :wq
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