From: mark@physchem.ox.ac.uk (Mark Jackson)
Subject: Re: Help adding a SCSI Drive
Originator: mark@joule.pcl
Organization: Physical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ
Lines: 61


In article <1993Apr19.195301.27872@oracle.us.oracle.com>, ebosco@us.oracle.com (Eric Bosco) writes:
> 
> I have a 486sx25 computer with a 105 Mg Seagate IDE drive and a controler  
> built into the motherboard. I want to add a SCSI drive (a quantum prodrive  
> 425F 425 MG formatted). I have no documentation at all and I need your  
> help!
> 
> As I understand it, here is the process of adding such a drive.  Could you  
> please tell me if I'm right..
> 
> 1- Buy a SCSI contoler.  Which one? I know Adaptec is good, but they are  
> kind of expensive.  Are there any good boards in the $100 region? I want  
> it to be compatible with OS2 and Unix if possible.  Also, I have seen on  
> the net that there are SCSI and SCSI2 drives. Is this true? Does the  
> adapter need to be the same as the drive? What type of drive is the  
> quantum?


I have tried others, but I think that the Adaptec is best value for money.


> 2- connect the drive to the adapter via a SCSI cable and the power cable.
> Do i have to worry about the power supply? I think I have 200 watts and  
> all I'm powering are two floppies and the seagate drive.


I dont think you can mix the two types of drive, unless you have one of the
SCSI/IDE cards that is available.  You will have to turn your IDE off.


> 3- Setup the BIOS to recognize the drive as the second drive.  What type  
> of drive is this? I don't have the numbers for this drive.


Instructions for drive type are included with the controller.  With some it may be
a type 1. no matter what the disk is.  With others it may be a type 47.  I had one
controller that I had to tell the BIOS that no hard disk was installed.

 
> 4- Format and create partitions on the drive. Do I use format or fdisk? I  
> think that IDE drives can't be low-level formatted. Is it the same with  
> SCSI? How exactly does fdisk work? I have a reduced msdos 5.0 manual  
> (clone obliges) and there is no mention of fdisk.  Ideally, I would want  
> the drive partitioned in to two partitions D: and E: how do I do this?


Do not low level format a SCSI unless you have the SCSI low level format program. 
First use fdisk to set the partitions, then use format.


> Well that seems to be all. Is there anythiing I'm forgetting? 
> Any help is *really* appreciated, I'm lost...
> 
> -Eric
> 
> ebosco@us.oracle.com
-- 
Mark 
______________________________________________________________________________
mark@uk.ac.ox.physchem