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From: rrobinson@ames.arpa (Randall W. Robinson)
Newsgroups: comp.sys.att
Subject: Re: 2 Hard Disks on 3B1?
Message-ID: <3079@ames.arpa>
Date: Mon, 12-Oct-87 12:50:32 EDT
Article-I.D.: ames.3079
Posted: Mon Oct 12 12:50:32 1987
Date-Received: Tue, 13-Oct-87 06:09:05 EDT
References: <1795@killer.UUCP>
Distribution: na
Organization: NASA Ames Research Center, Moffett Field, CA
Lines: 27

in article <1795@killer.UUCP>, sean@killer.UUCP (Sean McCollister) says:
> 
> 
> 	I've seen discussions here about HD's larger than 67 MB, and adding
> more partitions to an existing disk, but.... Is it possible to add a second
> hard drive to a 3B1?  I've noticed that the /dev directory contains entries
> for [r]fp01x; the software support for a second disk seems to be there, but
> does the hardware support it?  I haven't had the courage to open the box up
> and check the controller.  Anyone know?
 
I too am interested in this.  The question is more likely to be:

Can an external controller be added?

The system has a Fixed Disk Controller built into the system
board.  This controller has 1 and only 1 data connector.  It is
an easy thing to daisy-chain and control cable but,  I know of
no easy way to chain the data cable.  If there is an external
additional/replacement controller,  I would be very interested.
If I am wrong about the data line chaining,  this would be even
better (I strongly doubt this to be the case).

Thanx in advance to anyone that has this solution.

Have Fun

Randall W. Robinson
rrobinson@ames.arpa