Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!usc!ucla-cs!uci-ics!zardoz!tgate!ka3ovk!drilex!axiom!adelie!mirror!frog!rmk
From: rmk@frog.UUCP (Rick Kelly)
Newsgroups: comp.sys.ibm.pc
Subject: Re: SCSI drive info anyone?
Message-ID: <1571@frog.UUCP>
Date: 30 Jun 89 05:00:00 GMT
References: <441b1d44.1042a@apollo.COM>
Reply-To: rmk@frog.UUCP (Rick Kelly)
Organization: Charles River Data Systems, Framingham MA
Lines: 29

In article <441b1d44.1042a@apollo.COM> yon@apollo.COM (David Yon) writes:
>	What I'm curious to know is, how does the AT BIOS know how to inter-
>face to the drive if you have a SCSI port in the way?  Does the BIOS have
>built-in code to recognize that a SCSI port is in the system (which I doubt)
>or does the SCSI port look remarkably like a drive controller board (which I 
>would also doubt).   Is it really as easy as telling the AT the drive parameters
>and it all just magically works?  Also, I would like to continue using Disk
>Technician+ with the new drive, does anyone have any experience at using 
>Disk Technician with a SCSI drive?
>
>	Thanks...
>
>David Yon

The SCSI disk controller has an extended BIOS rom that get loaded at boot
time.  The system will basically timeout looking for a normal floppy or
winchester, and then use the extended BIOS code to poll the SCSI bus.
If it finds a bootable device, you're up and away.

I have been told that Seagate's SCSI boards are excellent.

Rick Kelly
Test Engineering
Charles River Data Systems
983 Concord St.
Framingham, Ma. 01701

Phone: 508-626-1011  days
       508-879-2179  nights