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Date:      Mon, 17 Mar 1997 02:41:13 -0500 (EST)
From:      John Clark <email@john.net>
To:        questions@freebsd.org
Subject:   SCSI Drive Geometry
Message-ID:  <3.0.32.19970317024201.00a8bdb0@199.3.74.250>

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Hello,

I have spent the last two days trying to determine a compatible drive
geometry for my SCSI disks.  I have a 2GB Seagate ST12400N and a 1GB
Seagate ST31230N.  The _correct_ geometry for the first disk is: 2621/19/83
and the _correct_ geometry for the second is: 3992/5/103.  See below.

	http://web1.seagate.com:80/cgi-bin/view.cgi?/scsi/st12400n.txt
	http://web1.seagate.com:80/cgi-bin/view.cgi?/scsi/st31230n.txt

The FreeBSD install utility complains saying that the drive geometry is
incorrect, and resets to 261/255/63.  Ok, but the install fails with a
"Page Fault."  When I try other geometries, ie. 1024/128/32 I get much
better results and sometimes make it through the install.  The success is
short lived as when paging occurs, so does another page fault (panic).

Does anyone have advice on this topic?  I am not sure that I understand
what gives here!

Thanks a million,



John Clark
[email@john.net]



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