From owner-freebsd-hackers  Wed Oct  4 17:19:56 2000
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Date: Wed, 4 Oct 2000 17:19:44 -0700 (PDT)
From: Matthew Jacob <mjacob@feral.com>
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To: Doug White <dwhite@resnet.uoregon.edu>
Cc: Jaye Mathisen <mrcpu@internetcds.com>, hackers@FreeBSD.ORG
Subject: Re: IDE drives doing BBR?
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> > Or do I just write nul's to the block or 0's, and it's supposed to do it
> > automatically?  or do I just punt.
> 
> 'dd if=/dev/zero of=/dev/ad1 bs=4k' works great; takes about an hour to
> scrub the entire disk.  Run until clean.  Running it right now in fact.

Err, Umm, I wouldn't assume that drives always know that writes have
failed. Do a read pass too.




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