[rescue] pSeries 660 6H1 Questions (7026-6H1)
Jonathan C. Patschke
jp at celestrion.net
Sat Oct 13 14:27:22 CDT 2007
On Sat, 13 Oct 2007, Andrew Weiss wrote:
> Ouch... this is good to know. I was under the impression that the
> machine was good to go all by itself and was thinking of replacing my
> B80 with one of those from the basement at work (retired systems). I
> was all set to grab one Monday. I was hoping to just run it and an
> SSA shelf. So I'd need 8U (two boxes) to do that?
Yes, you need both halves. Bear in mind that it's been two years since
I did any maintenance on one but, IIRC, the CEC doesn't have any
external I/O at all--its just the RS64 processor complex, memory cards,
service processor, and interface to the I/O drawer. The I/O drawer has
all the PCI slots, console ports, etc. I -think- the half with the
power button and operator's console is actually the primary I/O drawer.
My recollection of the CEC is that it's a completely nondescript box
with nothing other than an ID plate on the bezel, two power cables, and
two boa-cables out the back.
Another thing to bear in mind is that the RS64-IV processors aren't that
great at many applications, as they're targeted at "commercial
workloads". They're amazing beasts for database apps and low-end
"mainframe" tasks (EDI, merge/sort, etc.), a little pokey for
compute-intensive integer tasks, and amazingly slow for anything FP.
For anything that -isn't- Oracle or DB2, I'd almost bet the B80 is
faster. The B80 is certainly faster per watt for general workloads.
 Hence originally showing up in the AS/400 systems.
Jonathan Patschke ) "So far, 99% of illegal activity has been caused
Elgin, TX ( by criminals."
USA ) --David Willis
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