Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!umich!umeecs!shim
From: shim@zip.eecs.umich.edu (Sam Shim)
Newsgroups: comp.sys.ibm.pc
Subject: Re: INFO needed for MFM, SCSI, IDE drive
Message-ID: <2224@zipeecs.umich.edu>
Date: 8 May 90 14:58:03 GMT
References: <2575@crash.cts.com>
Reply-To: shim@eecs.umich.edu (Sam Shim)
Organization: University of Michigan EECS Dept., Ann Arbor, MI
Lines: 42

In article <2575@crash.cts.com> jca@pnet01.cts.com (John C. Archambeau) writes:
>khioe@mona.Jpl.Nasa.Gov (Kent Hioe) writes:
>>
>>1. Does any one know if we can install SCSI disk drive with MFM controller
>>   (WD1006V) ?
> 
>Yes.  The actual nuts and bolts of doing it varies greatly from manufacturer
>to manufacturer, but it can be done.

I think Kent is wondering if you can directly connect a SCSI disk drive to a
MFM ST-506/412 controller and the answer is no.  

>>2. Can we install MFM (controller + disk drive) as drive 1 and 
>>   SCSI (controller + disk drive) as drive 2 on the same machine 
>>   (386) ? 
> 
>Drive 2 meaning the drive 2 in your BIOS?  If that's the case, no.  The reason
>being that SCSI is not supported in any motherboard BIOS chip (only exception
>are those odd ball motherboards that have an on-board SCSI port, and there are
>a few of them).  The SCSI host adaptor will have its own on-board BIOS and how
>the logical drives are mapped varies greatly from manufacturer to
>manufacturer.

I think what Kent meant was whether the SCSI drive can be a second drive on
a computer with a ST-506/412 MFM controller and disk drive if the SCSI drive
is connected to a SCSI controller card and I believe it is possible.

[text deleted]
> 
>     // JCA
[sig deleted]



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| Sam Shim                                 | "I am a computer consultant.      |
| EECS Departmental Computing Organization |  I deal with User IQ errors!"     |
| University of Michigan                   | "It's not a bug, it's a feature!" |
| internet: shim@eecs.umich.edu            | "A mind is a terrible thing."     |
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