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From: Peter Chubb <peter@chubb.wattle.id.au>
To: Bernd Schubert <Bernd.Schubert@tc.pci.uni-heidelberg.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2 TB partition support
Date: Thu, 13 Nov 2003 06:35:00 +1100	[thread overview]
Message-ID: <16306.35684.471324.582862@wombat.chubb.wattle.id.au> (raw)
In-Reply-To: <20031112002811.GA18177@tc.pci.uni-heidelberg.de>

>>>>> "Bernd" == Bernd Schubert <Bernd.Schubert@tc.pci.uni-heidelberg.de> writes:

Bernd> On Mon, Nov 10, 2003 at 06:12:06PM -0800, Joseph Shamash wrote:
>> Hello Peter,
>> 
>> Forgive another quick Q or two.
>> 
>> What is the maximum partition size for a patched 2.4.x kernel, and
>> where are those patches?
>> 

Bernd> Hello,

Bernd> Are 2TB possible with an unpatched 2.4.x 64bit-AMD64 kernel? 

On unpatched 2.4, the limit (depending on your driver) for a single
block device is either 2TB-1k or 1TB - 512b.

The 2.4 kernel keeps the block device sizes in an unsigned int, in 1k
units, so the maximum size is (2^32-1)*1k.

I forget which subsystem does it,but one of them tries to keep the
capacity of a disc in an unsigned int in 512byte units; if you're using
that subsystem, the macimum size you can use is (2^31-1)*512b

--
Dr Peter Chubb  http://www.gelato.unsw.edu.au  peterc AT gelato.unsw.edu.au
The technical we do immediately,  the political takes *forever*

  parent reply	other threads:[~2003-11-12 19:35 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-10 21:17 2 TB partition support Joseph Shamash
2003-11-10 23:56 ` Peter Chubb
2003-11-11  2:10   ` Joseph Shamash
2003-11-11  2:20     ` Mike Fedyk
2003-11-11  2:12   ` Joseph Shamash
2003-11-11  2:21     ` Mike Fedyk
2003-11-11  3:42       ` Peter Chubb
2003-11-11  4:03         ` Joseph Shamash
2003-11-11  5:30           ` Patrick Mansfield
2003-11-11 21:21             ` Joseph Shamash
2003-11-11 23:58               ` Patrick Mansfield
2003-11-12 22:54         ` Randy.Dunlap
2003-11-11  2:39     ` Peter Chubb
2003-11-11  2:52       ` Joseph Shamash
2003-11-11  2:53         ` Neil Brown
2003-11-12  0:28     ` Bernd Schubert
2003-11-12  3:44       ` Mike Fedyk
2003-11-12 19:35       ` Peter Chubb [this message]
2003-11-14 17:14         ` Bernd Schubert
2003-11-14 17:43           ` Mike Fedyk
2003-11-12  0:01 Xose Vazquez Perez
     [not found] <QugF.3Mq.7@gated-at.bofh.it>
     [not found] ` <Qwit.771.11@gated-at.bofh.it>
     [not found]   ` <QR40.39P.53@gated-at.bofh.it>
2003-11-12  0:45     ` Andi Kleen
2003-11-12 19:37       ` Peter Chubb
2003-11-12 22:26         ` Andi Kleen
2003-11-12 11:09           ` Hans Reiser
2003-11-12 23:45             ` Peter Chubb

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