Well... since I am still awake....
Other than the older MFM/RLL stuff that probably will work if you can
still find the IBM drives (I guess this was inherited, as the ps/2 mod
60 based 6152s used the stock "R"s, so was that RLL?, if I remember
right, 40s or 70s I think, but I never saw anything but "E"-series ESDI
drives in the towers, in a few sizes, 70, something around 100, and
then the big 310). I think that some really old adaptec SCSI adapter
was also supported (forget the model # right now, think it was the
aha-1522 but with a less common letter?) & that was back in the days of
small SCSI drives (sub-1GB) ... of course, that SCSI card wasn't
"easily obtainable" several years ago when I thought about trying this
under AOS (someone had ported the drivers), so I don't know if anyone
is out there still doing this or what might be out there still. I know
that there was even a limitation on the ESDI drives that would work....
something about a short pulse that was odd (so you had to get a
specific version of the Maxtor 310MB drive & other ESDIs we tried
wouldn't work). Most info is in the RT FAQ
[
http://www.contrib.andrew.cmu.edu/~shadow/ibmrt/faqs/], so don't trust
my bad memory, look it up... =-) ANywho... I still have some of this
gear, but are there others out there with it too?
-j
On Apr 2, 2004, at 12:53 AM, Doc Shipley wrote:
> On 2 Apr 2004, R. D. Davis wrote:
>
>> Quothe Doc Shipley, from writings of Thu, Apr 01, 2004 at 05:06:34PM
>> -0600:
>>> I have to agree, though, that I haven't found a lot of similarity
>>> between
>>> what's installed on the RT and what I run on my 43Ps.
>>
>> Speaking of the RT, did anyone ever get these to work with any sort of
>> easily obtainable hard drives? Finding ESDI drives that would work
>> was
>> somewhat of a pain, and is why I stopped using my RT (hmmm... I wonder
>> if it still works?)
>
> Mine's running an old ISA Dell I/O card with 2x 5.25" floppy drives
> and a
> Seagate 280MB IDE Medalist hanging off it. I have the bookmark for the
> instructions somewhere, but it boils down to needing an IDE adapter
> that's
> pretty brainless, and that either has no serial ports or can be turned
> off,
> a Seagate Medalist <2GB, a goat, and 2 plucked chickens.
>
> I seriously did have to beat the drive repeatedly with the AOS
> LL-format
> utility to get it running. After it took a BSD filesystem, it then
> happily accepted TLC from the VM tools.
>
> Apparently, *only* the Medalist line supports an arcane instruction
> or
> sense bit or something that the ESDI adapter used and the system
> firmware
> wants to see. And, at this point, I'm not sure that a <2GB Medalist
> qualifies as "easily obtainable". ;)
>
> At that point I was able to power up the RT without dimming my office
> lights. Three very tired E70s suck some serious amps spooling up.
>
> I'd dearly love to snarf a mouse and a Matrox graphics adapter for
> the
> thing, but it's one of my pride & joy items just as it is.
>
>
> Doc
>
>
Jeff Brendle (bli_at_psu.edu)
Penn State - E & M S
Received on Fri Apr 02 2004 - 02:16:32 BST