Hiya guys, MOAHDD donor here, and it's past history.
While I admit that years of LSD use in the 60s and 70s has pretty much fried my memory, most the details are accurate, maybe just mixed up.
My partners and I had several big-ass HDDs, some older and some much larger. So the 10/20MB capacity must have been of the others, my mistake.
My factory was next door to the site, so techs would drop in, for convenience. I visited the site on a couple occasions, and was always
apprehensive of the safety measures, so I stayed away. As for the cooling system. I recall that it was mentioned that at THIS site, running plain
cool air was not adequate, plus there was a fear of internal combustion, so they came up with a chilled halon (mix), with white colouring? and a
distinct smell (for safety). I'd cracked open 2-3 in all, but the first time I did, I was standing directly over the HDD when I cracked it. A burst of white?
gas whooshed out, and that's when I recalled the safety instructions. I held my breath and ran for it.
Maybe it was from another installation, but I don't think so, but then I could have sworn I remembered it as one of the 20MBs.
Facts are all there, just stick them together yourselves :-) It's GREAT to see members adding to the history.
NOTE: It may not be the world's most expensive drive, but note "TEARDOWN". Until then, it stands :-)
PS: Most of the others were converted to wall clocks and such, some still run today.