QBUS SCSI controller for RT-11

From: Zane H. Healy <healyzh_at_aracnet.com>
Date: Wed Feb 26 20:36:00 2003

> I tested a Viking QDT with RT-11 and a 1 gig HD. Of course, I could only use
> the first 30 megs. This one is destined for a BSD machine anyhow.

The Viking QDT and RT-11 can address a lot more of a HD than 30Mb. For
example V5.3 supports 8 partitions (8 * 30 = 240MB), newer versions support
more. I can't remember off the top of my head how much as I'm running a
newer version, but I'm using 100Mb and 200Mb HD's under RT-11.

The QDT is a great board, on my /73 I've got a Plextor 8x CD-ROM, DEC TLZ06,
and two PC Removable disk trays (for easy swapping of HD's) hooked to one.
I've successfully run RT-11, RSX-11M, RSX-11M+, and RSTS/E on this setup.
I was originally using 100MB and 200MB SCSI disks, I now use 2GB 7200RPM
Seagate Barracuda's.

> I got the QDT for $45 on eBay. Someone put it up with a buy-it-now of $45.
> Someone tipped me off, and I got there first. It pays to keep a sharp eye on
> eBay. I just bought a KDJ11-SD off eBay for $5. This is a nice one: rev -09
> CPU, 18 MHz, 1.5 megs RAM. Other recent eBay steals: RQDX3 for $10, DESQA
> for $8.50.

Nice, it shows I've not been keeping a close enough eye on eBay.

                        Zane
Received on Wed Feb 26 2003 - 20:36:00 GMT