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Date:      Wed, 5 Jan 2000 14:37:10 +1300
From:      Joerg Micheel <joerg@cs.waikato.ac.nz>
To:        Greg Lehey <grog@lemis.com>
Cc:        Mitch Collinsworth <mkc@graphics.cornell.edu>, Mike Smith <msmith@freebsd.org>, Brandon DeYoung <brandon@schoolpeople.net>, freebsd-hardware@freebsd.org, joerg@cs.waikato.ac.nz
Subject:   Re: 36 GB IDE Hard Drives
Message-ID:  <20000105143710.I2049@cs.waikato.ac.nz>
In-Reply-To: <19991226102238.G1316@freebie.lemis.com>; from Greg Lehey on Sun, Dec 26, 1999 at 10:22:39AM %2B1030
References:  <msmith@FreeBSD.ORG> <199912250416.XAA78976@benge.graphics.cornell.edu> <19991226102238.G1316@freebie.lemis.com>

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On Sun, Dec 26, 1999 at 10:22:39AM +1030, Greg Lehey wrote:
> On Friday, 24 December 1999 at 23:16:54 -0500, Mitch Collinsworth wrote:
> >
> >>> Are hard drives larger than 32 GB supported by Free BSD. I've had both =
> >>> the 3.3 and 3.4 releases fail during the make New FS portion of the =
> >>> install, when installing on a Maxtor 36 GB drive.
> >>
> >> There shouldn't be any issues with large drives, no.  Since you don't
> >> provide any details to qualify "fail", it's hard to guess where your
> >> problems might lie.
> >
> > There's been discussion of this recently, I think on -questions.
> > Those involved seemed to agree there is a newfs barrier at around
> > 27 to 27.5 GB.  Smaller works fine, larger fails.  Based on that you
> > should be able to partition your 36 GB and make it usable now.  IIRC
> > there is a new driver in the works that's supposed to solve the
> > problem.
> 
> Correct.  That's a thing I forgot to mention in my last message: we've
> tried the new ata driver with large disks and had no problems.  That
> doesn't mean there are none, though: until we know what causes the
> problems, we can't be sure that they're gone.  ata is standard in 4.0.

FIW, I'm running a Seagate 50GB SCSI drive since about a month in a 
3.3-RELEASE system without problems.

Dec 10 13:50:17 negara /kernel: da0 at ahc0 bus 0 target 1 lun 0
Dec 10 13:50:17 negara /kernel: da0: <SEAGATE ST150176LW 0002> Fixed Direct Access SCSI-2 device 
Dec 10 13:50:17 negara /kernel: da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queue
ing Enabled
Dec 10 13:50:17 negara /kernel: da0: 47702MB (97693755 512 byte sectors: 255H 63S/T 6081C)

	Joerg
-- 
Joerg B. Micheel			Email: <joerg@cs.waikato.ac.nz>
Waikato Applied Network Dynamics 	Phone: +64 7 8384794
The University of Waikato, CompScience	Fax:   +64 7 8384155
Private Bag 3105			Pager: +64 868 38222
Hamilton, New Zealand			Plan:  TINE and the DAG's


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