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I can't talk about current systems, but many years ago we had an S/36 on a
UPS. A squirrel fried himself in the local transformer, so we lost power.
We watched the UPS drain, and when it go to about 10 minutes worth of
power, we ended all used activity, but left the system running. It took
another hour before the UPS gave up the ghost and cut power, so I'd expect
a very noticeable reduction in power in lightly used system versus a
heavily used Power6 system.

Steve

Steven Morrison
Fidelity Express





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System power question








OK... this is a strange question...


Picture an i5 system (a 3800 cpw 525) that is powered on and humming away
as it processes work to support Mimix replication, a Domino server, and a
WAS/HTTP server.

Now picture that same i5 system (a 3800cpw 525) that is powered on and
sitting in restricted state.


Now here's the question... are they consuming approximately the same
amount
of electrical power from the circuit (conditioned by the UPS, of course)?
If there is a difference in the electrical power being drawn, is it a
significant difference? I'm looking to get a handle on this question... I
can make a guess, but i'd like to hear from someone who is certain of the
answer!





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