17 Jul
2026
17 Jul
'26
8:35 a.m.
I have several that work fine and one that is a primary disk on TITAN (a
11/73+ system) using the RQDX3.
It's dog-slow compared to the ESDI disk and controller in the 11/83+
(PMI) but to be honest firing up a lot of memory as cache gets the
system to reasonable performance levels. Still a bit slow.
C
On 7/17/26 11:28, Hans-Ulrich Hölscher via cctalk wrote:
How many RD54s are still alive? Mine (10) are all dead
:-((
Am Fr., 17. Juli 2026 um 17:00 Uhr schrieb Chris Zach via cctalk <
cctalk(a)classiccmp.org>gt;:
> Well, you can fit VMS onto an R(M,A, )80 drive with no problem, the
> mighty 11/730 is living proof.
>
> RD54's though are a lot less power hungry.
>
> C
>
> On 7/16/26 14:41, Martin Bishop via cctalk wrote:
>> You can fit a VMS systems onto an RD54 - I ran systems like that from
> the 80's into the early 00's. Albeit with another RD54 for the user
> software, and another two RD54's for analysis data. However, SCSI or a
> solid state solution is a markedly better solution.
>> Martin
>>
>> PS VMT pointer to 5volts.ch : not previously above my horizon
>>
>> -----Original Message-----
>> From: emanuel stiebler [mailto:emu@e-bbes.com]
>> Sent: 16 July 2026 17:18
>> To: General Discussion: On-Topic and Off-Topic Posts <
> cctalk(a)classiccmp.org>
>> Cc: Martin Bishop <mjd.bishop(a)emeritus-solutions.com>
>> Subject: Re: [cctalk] Re: uVAX-II new MSCP media?
>>
>> On 2026-07-16 11:59, Martin Bishop via cctalk wrote:
>>> Q-bus disk options, using uSD or recent media, arguably include:
>>> - RQDX3 - MSCP - David Gesswein's MFM emulator (or similar)
>> He has ~660MByte disks in the system. MFM won't work for him :)