Dave McGuire wrote:
On 8/10/10 1:27 AM, Michael B. Brutman wrote:
Things I'm interested in particular:
- What SCSI adapter were you using? What device drivers and OS?
Adaptec 1542C. I don't recall which drivers, this was ~1991 or so.
I'm almost thinking there weren't any drivers (the 1542C had an onboard
BIOS ROM) but I seem to recall having a special formatting program.
(this was with a 44MB drive) The OS in use was DOS, probably v3.3.
I'm using the Adaptec ASPI utilities, but not on an Adaptec card. I'll
fix that tonight. (I have a 1542CF that I can put in the machine,
although I hate changing the config on my machines.)
- On the older
8" drives - are 10" carts read only, or should they be
Digging in very dusty memory here; I used quite a few of these. I'm
kinda sad that I don't have any left, but I've not touched them since
about 1991. I used the 10MB and 20MB 8" drives at home, and 5.25" 44MB
drives at work around that time, both under DOS. Distant memories
suggest that the 10MB disks are read-only in 20MB drives but I'm not
positive. At home I had an Iomega controller board for the 8" drives,
The Iomega controller is a PC2B-50. (There is a version without a boot
ROM too.) I have two samples of these, so I'm ok there.
- Does anybody
know of a source for 20MB cartridges for the older 8"
drive? Having used 10MB cartridges that I'm not sure I can write too is
kind of useless.
...eBay...not hard to find..
Point me at some off list. I've been looking for over two months. I've
found 10MB carts (bought the only 5 that were there), an original manual
for the 10MB 8" units with software, and a controller card. But the
20MB 8" disks haven't been there, unless I'm doing something very wrong.
to need therapy after this. I have thought about throwing the
damned things out the window.
I actually had really good luck with them. I had dozens of disks, but
I think I only had one or two of the 8" disks fail, and I've never seen
a 44MB disk fail. They're surprisingly reliable.
I think the build quality and the technology were great for the time,
and that's why I want to get one working. This is the kind of thing
that was 'high end' back when I was a PC user, and the Bernoulli boxes
were legendary for being tough and weird. So I'm really motivated to
get one of these working. But wow, there just isn't a lot of
information out there - this stuff is dangerously close to falling into
the bit bucket.
Oh wait, I DO have one 8" subsystem left,
it's a dual 20MB subsystem
on a PDP-11 in a Kevex spectrometer for my SEM. I've not actually tried
to fire it up, it's in storage so I can't look at it, but I know I still
have it. Someday, when there's time..