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Re: Default number of overwrites in shred

From: Paul Eggert
Subject: Re: Default number of overwrites in shred
Date: Thu, 03 May 2007 19:05:07 -0700
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)

Peter Eckersley <address@hidden> writes:

> I was wondering if you would consider reducing the number of default
> overwrites for "shred" from 25 to something more like 5?

As near as I can make out, for modern disks the default should be 1.
That's easy to change.  Any objections?

There's also the Secure Erase facility built into modern ATA drives,
which it sounds like 'shred' should use if it's available.
Does anybody know how well GNU/Linux supports it?
See <http://cmrr.ucsd.edu/hughes/SecureErase.html>.

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