SCSI options for PDP 11/23

From: Zane H. Healy <healyzh_at_aracnet.com>
Date: Wed Feb 27 20:52:32 2002

> After my recent RX02 problems, I've decided I'd like to add a SCSI
> controller in my 11/23, and keep my programs on a hard disk. What Q-bus
> controllers will work with RT-11? What's the minimum version of RT-11
> that I can get by with? Can I use any disk, or does it have to be
> something in particular?

Is it a /23 or a /23+? I'm not sure how the various controllers might
handle an 18-bit system vs. a 22-bit system. For RT-11 you need 5.x for
MSCP (disk) support and 5.4 for TMSCP (tape) support.

I run my /73 with a Viking QDT SCSI controller, and have a RRD-42 CD-ROM,
TZ30 Tape drive, and two SCSI HD's in removable trays attached to it. Works
great under both 5.4 and 5.6.

                ane
Received on Wed Feb 27 2002 - 20:52:32 GMT