Path: utzoo!utgpu!water!watmath!clyde!rutgers!ames!aurora!labrea!decwrl!decvax!bhjat!bhj
From: bhj@bhjat.UUCP (Burt Janz)
Newsgroups: comp.sys.att
Subject: Re: More HD on my 3b1.  How?
Summary: Swapping disks on the 3B1
Message-ID: <168@bhjat.UUCP>
Date: 16 Jan 88 21:06:07 GMT
References: <287@flatline.UUCP> <7010002@hpcupt1.HP.COM>
Organization: BHJ Associates, Nashua, NH
Lines: 31

In article <7010002@hpcupt1.HP.COM>, gberg@hpcupt1.HP.COM (Greg Berg) writes:
> % / hpcupt1:comp.sys.att / andys@shlepper.ATT.COM (a.b.sherman) writes
> % Your best bet is to put the largest drive possible on the system.  That
> % is 80Meg (67Meg formatted) unless you do the hardware change.  You can't
> % do anything else, because the hardware won't support it.  The /dev
> % entries for a second drive are there for the Convergent miniframes used
> % to develop software for the beast.
> % ----------
> 
> 	According to AT&T online support, the power supply installed in
> 	the 7300 with 20MB is not sufficient to feed 40MB or 80MB disks.
> 
> 	Has anyone done a straight swap of the hard disk with success?
> 	If so, was the new disk a "fast" or slow variant?

I guess this means that I've broken the rules of physics again.  I purchased
a vanilla 3b1 with 1mb and a 20mb Miniscribe (slow access stepper).  As you
may have noticed, that ain't enough to hold all of the development kit and
still have space left for source!  I waited until the warranty period
was over, ripped out (carefully but forcefully) the Miniscribe, and shoved
in (gently but firmly) a Seagate ST251.  I formatted it using the boot disk
and loaded all the software on it.  I've been running happily since.

The power supply puts out a standard amount of jolts at a specified current
rating.  If you can get a drive which rates the same (like I did) but stores
more data... go 4 it!

Burt Janz

..decvax!bhjat!bhj (my Microport system)
..decvax!bhjatt!bhj (my 3b1)