[Simh] Dec-10 Day announcement from Living Computers: Museum + Labs

[Rich Alderson]

> From: Johnny Billquist <bqt at softjar.se>
> Date: Tue, 12 Dec 2017 01:01:11 +0100

> So I would assume it at least performs similar to a real RP07, which is 
> nice. Seek times will obviously almost always be better on todays disks. 
> As long as transfer rates are acceptable, then this is a very 
> interesting improvement.

We don't run any antique spinning rust on the timeshared systems these days.

> Me thinking right now if this wouldn't be a nice project for 
> Magica.Update.UU.SE (PDP-11/70 running RSX). The RA73 disks are really 
> the slow part of that system, compared to a system I have at home with 
> SCSI disks. We certainly have RH70 adapters just sitting there, and for 
> the 11/70, this could be a serious improvement in performance compared 
> to an UDA-50.

Well, our 11/70 (running 7th Edition Unix) has an MDE attached, so it is proven
to work with an RH70 as well as RH11s, RH10s, and RH20s.  I keep looking for a
round tuit so that I can arrange to test it against the RH780 in the 11/785.
(We don't have a /750, so I can't test it against an RH750.  Somebody asked.)

                                                                Rich