29 Jan
2013
29 Jan
'13
8:17 p.m.
On 29 January 2013 10:18, <microcode at zoho.com> wrote:
No. Every series until the IBM CMOS machines was water
cooled as far as I
remember although not every model in every line was water cooled. Up through
S/390 and including the ES/9000. Even the lowly 43XX (which was more
powerful than the biggest VAX ever made) was watercooled.
Based on the 1979 IBM sales manual (go find it on BitSavers), the only
models of System/370 that mention water cooling are the 168, 3032 and
3033.
Also, based on the 1974 System/360 physical planning installation
manual, the only two System/360 models that required liquid cooling
were... the model 85 and model 195.
So, by your logic of "big iron" only counting as an IBM machine that
requires a raised floor and watercooling... the label only applies to
the aforementioned machines.
I would think, though I am most definitely not an expert, that a
System/360 Model 65 counts as a mainframe and as big iron, doesn't it?
Cheers,
Christian
P.S. Both manuals, as well as other manuals all mention that any of
the machines can be installed without a raised floor, if safety
precautions are taken, and accomodations made for cabling the machines
on a non-raised floor.