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Date:      Tue, 11 Jun 2002 07:00:40 +0200
From:      Poul-Henning Kamp <phk@critter.freebsd.dk>
To:        Gordon Tetlow <gordon@FreeBSD.org>
Cc:        arch@FreeBSD.org
Subject:   Re: Statement of architectural direction: disklabel64 / GPT. 
Message-ID:  <15243.1023771640@critter.freebsd.dk>
In-Reply-To: Your message of "Mon, 10 Jun 2002 16:36:15 PDT." <Pine.LNX.4.44.0206101635150.28471-100000@smtp.gnf.org> 

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In message <Pine.LNX.4.44.0206101635150.28471-100000@smtp.gnf.org>, Gordon Tetl
ow writes:
>On Mon, 10 Jun 2002, Poul-Henning Kamp wrote:
>
>> The GPT handles 16k partitions, 64 bit addressing, has decently
>> checksummed and redundant meta-data and space for per partition
>> meta-data.
>
>So it has a place to stash data suitable for GEOM mirror partitions and 
>other "special" things that need to keep some meta-data about their 
>operations?

I generally belive that such meta-data should be in the partition so
people don't get surprised that
	dd if=/dev/da0p1 of=/dev/da1p7 bs=1m
doesn't do what they want.

So while the answer to your question technically is "yes", I belive
we shouldn't use that space unless we have a very good reason.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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