From: S_JUFFA@iravcl.ira.uka.de (|S| Norbert Juffa)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Can 1 GB SCSI disk coexist with 2 IDE drives? (Summary of replies)
Date: 9 Nov 1992 12:19:26 GMT
Organization: University of Karlsruhe (FRG) - Informatik Rechnerabt.
Distribution: world
NNTP-Posting-Host: irav1.ira.uka.de
X-News-Reader: VMS NEWS 1.23

Hi netters!

About a week ago I asked here if I could run a SCSI disk using the Adaptec
1542B in a machine already being equipped with 2 IDE drives. I got three
email replies from Ken Germann, A.L. Squyres, and Roger Wolff, which are
appended below. Thanks guys!

The replies can be summerized by stating that the drivers supplied with
Adaptec's driver kit for the 1542B allow one to do just what we want to
do (that is, run a machine with 2 IDE disk and 1 SCSI disk).

Norbert
------------------------------------------------------------------------------
Norbert Juffa          email: S_JUFFA@IRAVCL.IRA.UKA.DE     Live and let live!



>
>To: S_JUFFA@iravcl.ira.uka.de
>Subject: Re: Can 1 GB SCSI disk coexist with 2 IDE drives?
>Newsgroups: comp.sys.ibm.pc.hardware
>In-Reply-To: <1d3rs8INNd6s@iraul1.ira.uka.de>
>Organization: Zeos International, Ltd
>Cc: 
>
>In article <1d3rs8INNd6s@iraul1.ira.uka.de> you write:
>>Hi netters!
>>
>>Our institute plans to buy a 1 GB hard disk to put all our experimental data
>>on we are collecting right now (research project on rotary plow feeder in a
>>silo). Since we also want to have an easy way to back up all that data on the
>>disk, we plan to get the Adaptec 1542B SCSI controller with the driver kit and
>>a Fujitsu 1 GB SCSI disk. We would want to install the new disk in a 486
>>machine that is already equipped with two IDE drives (120 and 240 MB). 
>
>You will need to run ASPI4DOS.SYS and AFDISK.SYS. It should work fine.
>-- 
>Ken Germann              ZZZZ EEEE  OO   SSS    ZEOS International, Ltd.  
>support@zeos.com   INET     Z E    O  O S       Technical Support Dept.
>uunet!zeos!support UUCP    Z  EE   O  O  SS     530 5th Ave N.W.
>800-228-5390      VOICE   Z   E    O  O    S    St. Paul, MN 55112
>612-633-7337             ZZZZ EEEE  OO  SSS     FAX         612-633-4607




>Re: Adaptec & IDE....
>
>The controller will work fine with MOST IDE paddle cards.  If you use
>a 1542, you must be able to disable the floppy port on the IDE card, 
>if you plan to use the floppy port on the Adaptec.  It can be disabled
>on the 1542 (AHA-1540 has no floppy support, so if you always will run
>an IDE drive in your system, it is the card of choice.  
>
>Your problems will arise with the OS; you MUST get the 154x *KIT*,
>which will include the software drivers for DOS, NetWare, and
>(currently) OS/2 1.1 ---- absolutely necessary if you keep both IDE
>drives.  If you drop one of the IDE's, it will force the BIOS in the
>AHA-1542B active, and these drivers are unnecessary.  DOS, however,
>will recognize a total of two (count 'em: 2) drives, so if you add
>another SCSI drive of any type, you will need said drivers.
>
>Hope this helps.
>als
>
>-- 
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>hounix!als(A.L.Squyres)			VOICE: (409) 756-5248
>SnailMail: P.O. Box 1612		DIRECT:(409) 756-7764 login:guest 
>	   Huntsville, TX 77340		PKEY: &^11dwblTY4
>



>In comp.sys.ibm.pc.hardware you write:
>>the impression that there are problems having more than two HD in a PC (BIOS,
>>DOS?). Does anybody run such a configuration and what are the caveats?
>
>I don't tthink that there will be extra problems. The SCSI disk wont
>work through the bios anyway, so there won't be a problem. You may not
>be able to  boot from it, but that shouldn't be a problem.
>
>					Roger.
>-- 
>****   a 486 in V86 mode is like a VW buggy with a 6 litre V12 motor.  ****
>EMail:  wolff@duteca.et.tudelft.nl   ** Tel  +31-15-783644 or +31-15-142371

Newsgroups: comp.sys.ibm.pc.hardware