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On 9/28/23 17:38, Johnny Billquist wrote:
> I`ve never actually tried running en RM05 on an RH11. I`ve not tried an
> RP07 either. But I suspect you might be dropping data on the DMA
> transfer, so potentually a non-solvable overrun problem.
Ok. But since there aren`t any RM05s around anyway, at least none
that anyone is aware of, it`s a non-issue. One of our PDP-11/55s has an
RH11 in it so I mentioned it.
>> But my admittedly decades old memory does recall that a CDC 9766 on an
>> Emulex controller (possibly an SC03) is media compatible with an RM05.
>
> That would be interesting to get confirmed.
A brief look at the Emulex SC03 manual confirms it.
>> It`s definitely the case that an Emulex controller (specifically)
>> for the VAX-11/750, whose model number I`ve forgotten, connected to a
>> CDC 9762 is media-compatible with the RM02. I ran such a
>> configuration at work in the early 1990s and regularly moved packs
>> between the two.
>
> That`s interesting, and good to know. The RM02 and RM03 are the same
> drive, and packs can be moved freely between them. The RM02 just spins
> slower.
Yes.
-Dave
--
Dave McGuire, President/Curator
Large Scale Systems Museum
New Kensington, PA
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