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Date:      Tue, 3 Oct 2000 09:08:46 +0930
From:      Greg Lehey <grog@lemis.com>
To:        Terry Lambert <tlambert@primenet.com>
Cc:        freebsd-fs@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG
Subject:   Re: Partitioning (was: ccd with other filesystems)
Message-ID:  <20001003090846.F372@wantadilla.lemis.com>
In-Reply-To: <200010022052.NAA10099@usr05.primenet.com>; from tlambert@primenet.com on Mon, Oct 02, 2000 at 08:52:24PM %2B0000
References:  <Pine.BSF.4.21.0010012343530.5871-100000@besplex.bde.org> <200010022052.NAA10099@usr05.primenet.com>

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On Monday,  2 October 2000 at 20:52:24 +0000, Terry Lambert wrote:
>>> I strongly object to the Microsoft "partition" table, and I don't use
>>> it myself.  And of course you're welcome to use whatever you find
>>> convenient.  It's not until you advocate making this a standard way
>>> that anybody can have any objection.
>>
>> Why?  It is only broken in different ways than the BSD label.
>
> The PReP specification makes it crystal clear how you can
> support up to 2^32 sectors with the DOS partition table
> mechanism.  It's perhaps the best documentation I've ever
> seen for the DOS partition table, and the 32 bit sector
> field.  I'd have bought the thing for that documentation
> alone, had I known it was there when I needed it.

Why do we need it?

> PS: That's 112 TB, in LBA mode.

I make 1 TB for signed sector numbers, which is what we already have.
How do you get 112 TB out of 512*2**31?

Greg
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