RE: Solaris disk wipe utilitiy?

IIRC, You need to wipe a disk with random patterns of 0's and 1's 6-8 times before the data is unrecoverable (by someone like ontrack).

/dev/zero is OK, I wonder if you could use /dev/random...

If you think that's being paranoid, do a search with google on people recovering data from formatted hard drives.

<> Jim

-----Original Message-----
From: Erik Hovland [mailto:ehovland@s383.jpl.nasa.gov] Sent: Thursday, March 06, 2003 4:39 PM
To: focus-sun@securityfocus.com
Cc: MacDougall, Shane
Subject: Re: Solaris disk wipe utilitiy?

On Thu, Mar 06, 2003 at 10:59:18AM -0600, MacDougall, Shane wrote:
> Does anybidy know of a DOD-compliant file/disk wipe utility for
> Solaris 2.8/2.9? We need to clean off our Sunfire box soon, and need to
> do it securely.

I know that NASA's requirement is fulfilled by writing /dev/zero to partition s2. Does anyone on this list see a problem with that? Does it have be done a few times to beat down the residual magnetic flux?

See this blueprint for more ideas:
http://www.sun.com/blueprints/0600/scrub.pdf

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E

-- 
Erik Hovland
Member of Technical Staff, Interferometer Section - 383
Work Phone:    (818) 354-1994
Mobile Phone:  (818) 667-3284
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