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From: gyugyi@earthsea.stanford.edu (Paul Gyugyi)
Newsgroups: comp.sys.ibm.pc.hardware,comp.windows.ms
Subject: Re: MFM + SCSI
Keywords: MFM SCSI Hard disk
Message-ID: <1991Apr1.121421@earthsea.stanford.edu>
Date: 1 Apr 91 20:14:21 GMT
Article-I.D.: earthsea.1991Apr1.121421
References: <1991Mar31.081159.8859@cs.uoregon.edu>
Sender: news@leland.Stanford.EDU (Mr News)
Reply-To: gyugyi@earthsea.stanford.edu (Paul Gyugyi)
Organization: Stanford University
Lines: 28

I have 2 MFM drives, and a SCSI, plugged into an IBM PC with an
Intel Inboard 386 accellerator card.  Works well.
Some hints:

1) Don't buy the seagate ST-02 scsi controller that costs about $50.
I doesn't come with drivers to let you use both MFM and SCSI
disks.  It simply makes the SCSI look like a MFM disk controller.

2) I have the future domain SCSI disk controller for the XT.  It
is an 8 bit card, which I needed.  Future Domain drivers will let you
use SCSI and MFM disks.  Get the full kit, as it has the driver you
need.  Now, future domain chose to install the scsi disk as a "block
device", not an "Int 13 device", which means that smartdrv and
hyperdisk won't cache the scsi drives (they won't complain either).
Luckily PC Quik Cache will cache block devices, so get that if you
get a future domain controller.  I wouldn't bother mentioning
future domain at all, execpt I hear they have a really fast SCSI-2
controller out (I have no details or hard facts).

3) don't forget about the virtualHardDiskIRQ=false (WARNING: the previous
spelling is probably wrong and won't work at all.  consult sysini.txt files).

Your best bet is to get an Adaptec controller, since that seems to be
widely used & supported.

--
Paul Gyugyi
gyugyi@earthsea.stanford.edu