PDP-11 SCSI was RE: RT-11 - An Open letter to Mentec?

From: The Wanderer <quapla_at_xs4all.nl>
Date: Wed Apr 18 13:18:37 2001

I am. Using an Unibus SCSI card with 2 jaz drives and one ZIP drive.

Ed

Quoting Ethan Dicks <ethan_dicks_at_yahoo.com>:

>
> --- Lee Courtney <leec_at_slip.net> wrote:
> > > Which brings up another interesting point, how many
> > > Hobbyists are running any of their PDP-11's with SCSI controllers?
> >
> > ...or how many would like to? (My hand is raised). While not being a
> 'pure'
> > PDP-11, it does offer some significant advantages.
>
> If I had it, I'd use it. I only have Qbus MFM (RQDX1, RQDX3), SDI
> (KDA-50),
> and Systems Industry proprietary (SI9900) controllers. I don't even have
> an ESDI or SMD controller (but I do have a pile of ESDI and SMD drives).
>
> It's been a big drawback when attempting to play with a real OS on real
> hardware (as opposed to emulation). I have a couple RD54 drives a few
> RD53 drives, a couple RA81s, a couple of RA70s and lots of <1Gb SCSI
> disks (and <150Mb MFM ;-)
>
> I always wanted to run 2.9BSD on something real (had the tapes since 1987).
> Never had the right combination of CPU, controller and disk to make it
> work (except for playing with a dual RL02 setup - it loaded, but there was
> no room to do anything). I did dump the tapes to image files and emulate
> the whole shebang on my first SPARC1 in 1994 - ISTR it ran about 30% of
> real speed.
>
> Anyway... if I could find a Qbus SCSI controller for <$200, I'd be
> interested. If I could find one for <$50, I'd buy it on the spot.
>
> -ethan
>
> -ethan
>
>
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Received on Wed Apr 18 2001 - 13:18:37 BST

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