SCSI options for PDP 11/23

From: Zane H. Healy <healyzh_at_aracnet.com>
Date: Wed Feb 27 22:49:29 2002

> I have a regular 11/23 in a BA11 11/03 box, which I believe to be 18-bit.
> Its a collection of pieces from different systems as many PDPs are I'd
> imagine.
>
> Will existing compiled Fortran programs from version 4 run okay and
> without recompiling on 5.x? I don't have the source.

OK, what I see that concerns me is the fact you're using a 11/03 box.
Unless I'm mistaken the 11/03 was only Q16, which has me wondering how
you're even running a 11/23 CPU, which should be Q18, in it (it's possible
someone upgraded the backplane to be 18-bit).

I took a quick look and it looks like CMD made SCSI controllers that would
work in either a Q18 or Q22 system. It also looks like Viking controllers
only work in a Q22 system.

As for your Fortran programs, I would think they would work on V5.x, but am
not sure. The best people on the list to know about that would be Megan or
Jerome.

Is this a hobbyist system, or is it a production system?

                        Zane
Received on Wed Feb 27 2002 - 22:49:29 GMT