[kwlug-disc] OT - degauss/wipe a dead hard drive/LTO tapes
bjonkman at sobac.com
Mon May 3 12:20:42 EDT 2010
Hard drive platters are inside a metal enclosure. No degaussing tool
short of a nuclear EMP will erase the data sufficiently that the
manufacturer couldn't restore it.
DBAN just does a lot of writing to the disk. Shouldn't affect it's
bootability, so the manufacturer should still be able to find mechanical
Degaussing just applies a strong magnetic field to the media. If you
have tapes they'll be blank after degaussing, so they should be
reusable. Be careful with tapes that have been stored in sub-optimal
environments -- sometimes the oxide comes off, sticking to the back side
of the tape it's been wound on. While there's probably some error
correction on tape drives, I doubt it can deal with missing chunks of
old tape oxide.
On Mon, 2010-05-03 at 10:58 -0400, Oksana Goertzen wrote:
> Hello Everyone,
> I have a hard drive that can be sent back to the manufacturer because
> it's still
> under warranty. The drive is no longer boot-able. Will degaussing
> the drive
> wipe it sufficiently? Does anyone have access to such a device or a
> electric magnet? I can't run DBAN or destroy the drive because it
> needs to
> go back to the manufacturer in good enough condition that they can
> it failed.
> And on a side note, we have a number (a lot, actually) of LTO tapes at
> that should either be destroyed or degaussed. Does anyone know
> about degaussing tapes? Can they be recycled at all?
> Thanks for any advice!
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> kwlug-disc_kwlug.org at kwlug.org
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