Path: utzoo!attcan!sobmips!qnorth!mark
From: mark@qnorth.UUCP (Mark F. Proudman)
Newsgroups: comp.sys.ncr
Subject: Re: How do I setup a 400 with two 140Mb Maxtor disks?
Message-ID: <18@qnorth.UUCP>
Date: 12 Mar 90 14:06:28 GMT
References: <1990Mar1.185008.8739@is.uu.no>
Organization: Quadratron - The Q-Office people
Lines: 28

From article <1990Mar1.185008.8739@is.uu.no>, by ra@is.uu.no (Robert Andersson):
> I have a Tower 32/400 with an MSC and a 140Mb Maxtor disk.
> I also happen to have another 140Mb Maxtor disk just gathering dust.
> Wouldn't it be possible in some way to use that one in the 400?
>

I have set up a second ST506 drive on my Tower 32/400.  (In this case an
ATASI 47, but the idea is the same.)  Here's what to do:

a) remove the installed Maxtor 140, and remove it's termination resistor.
   refer to the Hardware Manual for the exact location.
b) Put the original disk back in, and lead the control cable's second
   connector outside the cabinet.  It will be used for the second disk.
c) Make sure the second disk is 1. terminated and  2. addressed as disk
   number 2.  Look in the Hardware Manual for the drive address shunts.
d) Plug in the second disk to control cable.  Run a second data cable from
   the MSC to the second disk.
e) boot from h501 and carry on with dkpart -d h502; format -d h502 etc.
f) The devices for /dev/[r]dsk/1s1 will be 2,5 and 7,5.

The only problem you may encounter could be overloading the 400's
power supply.  I have an old Tower XP next to the 400; I use it as
an auxiliary power supply and disk cabinet.  The NCR technician had
a heart attack when he looked at this arrangement, but I've been
running it for 2 years.

Mark Proudman			(514) 636 1732 (voice)
uunet!sobeco!qnorth!mark