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I have been going through agony with UPSs myself. This is some of what I
learned:

If you plug in a cable to the UPS port on the iSeries, it reports a UPS
connected - EVEN IF THE OTHER END OF THE CABLE IS NOT CONNECTED TO A UPS.
This can be done while the system is running with no negative results. Take
out the cable and it reports that you are disconnected from the UPS.

OTOH, if you are plugged into another "server" (MSFT in our case) via USB
connecter, and then attach the iSeries cable AS WELL, the iSeries seems to
get a message that power has been lost, and will power off using whatever
method you have installed - in our case, 5 minutes. After it happened twice
to the same system we took the hint and didn't connect both system's sense
cables to the same UPS.

What we are planning to do is install the Ethernet management card,
disconnect the MSFT server and let the networking side control the system as
a result of feed back from the ethernet card. Then we can connect the sense
cable to the iSeries and all should be well.

Still learning,

Dave


On 9/4/07, Lukas Beeler <l.beeler@xxxxxxxxxxx> wrote:

The only way i found so far to test this was very very stupid (there
probably is a better one):

Power down the machine. Unplug the power (to power down the FSP). Unplug
the UPS cable. Power up the machine. You might now see a message telling
you that an UPS has been disconnected. Power down the machine. Unplug
the Power. Plugin the UPS cable. Power up the machine. Check DSPLOG and
QSYSOPR MSGQ for a message telling you that an UPS was found.

I've also found no way to read battery status, power remaining, battery
lifetime remaining from the System i. The Relay interface cards seem
kinda limited, but with bigger UPSes I can have both an Ethernet card
and a relay card.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Pete Massiello
Sent: Tuesday, September 04, 2007 8:32 PM
To: 'Midrange Systems Technical Discussion'
Subject: UPS Connection at V5R4

I had two customers call me today and tell me that they had a power
outage
and their machines never were signaled. One is a 515 and the other is a
520, they are both running V5R4 (have early 2007 Cumulative), but they
have
different UPS(s).

The new 515 never knew if this worked before, but they are connected to
the
correct port, and the 520 customer thought this had worked when we first
installed the machine at V5R3.

Anyone else come across this issue. It's weird that two people called
me
with the same problem.

Thanks

Pete Massiello
iTech Solutions




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