From owner-freebsd-fs@FreeBSD.ORG  Wed Sep  1 10:41:35 2010
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From: Matthias Gamsjager <mgamsjager@gmail.com>
Date: Wed, 1 Sep 2010 12:41:04 +0200
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To: Jeremy Chadwick <freebsd@jdc.parodius.com>
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Cc: Carl <k0802647@telus.net>, freebsd-fs@freebsd.org
Subject: Re: gjournal alignment on 4K sector advanced format drives
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> Can't you just set the jumper on the drive to us 512-byte sectors?
> I mean, that's what it's there for...

apparently this isn;t the case because all it does is change to offset