32Meg Limit and > 512 Byte Sectors

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#1742

From: Brian Who?
Date: Tue, 31 Jul 1990 20:47

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     I am writing a SCSI device driver for the Seagate ST-01 interface card
and want to have it utilize large drives without having to partition them.
In reading thru the documentation available on Bios Parameter Blocks, I tried
to get around the 32Meg drive limit by makeing the sectors larger (2048).
What I ran into was that DOS refused to use the driver and complained about
"Invalid Sector Size in C:\SCSI.SYS".  It turns our that you cannot have
a loadable driver that defines a sector size larger than the largest sector
size used by the internal/resident drivers.

     Now for the question.  Does anyone know of a way to convince DOS to
allow the larger sector sizes?  It might be possible to create a boot floppy
with large sectors, but I don't want to have to boot from a floppy all the
time.  Help!?!?!?!?

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!uunet!isc-br!tau-ceti!briana
From: briana@tau-ceti.isc-br.com (Brian Who?)
Newsgroups: comp.os.msdos.programmer
Subject: 32Meg Limit and > 512 Byte Sectors
Keywords: Stupid Resident Drivers......  guuurrrr
Message-ID: <643@tau-ceti.isc-br.com>
Date: 31 Jul 90 20:47:38 GMT
Organization: I Saute Cats - Barbecue Rats, Spokane, WA
Lines: 14