On 02/20/2012 06:24 PM, Dave wrote:
-----Original
Message-----
At Newcastle there were lots of problems with their IBM 370 I think it
was
eventually tracked down to some circuits with faulty bonding of the copper
to the pcbs in some units. Recently when we had an IBM MP3000 which some
would call a mainframe (It runs 370/xa and ESA code) it had a lower
availability that our Windows servers.
That's scary.
I have an MP3000 here that I'm trying to get running. Do you know a
bunch about them?
I'd definitely call it a mainframe; it uses the same processor
chipset as an S/390 G5. (for others reading this, ZERO relation to
PowerPC G5)
To me a Mainframe was largely about the i/o, so
perhaps eparate, dedicated ,
programmable, identifiable i/o processor? I am note sure if the z9 has
these, or if like the MP3000 the i/o processors are "emulated" by a service
processor...
The z9 has massive, massive I/O capacity that is most definitely NOT
emulated.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA