Re: Monitoring for power outages on a dual-powered system

Personally I don't like this setup as it adds exposures and solves none.

1) You will get a message in QSYSOPR (CPF1816 maybe?) *IF* the UPS is properly connected to the system. This will happen whether or not both power supplies are connected to the UPS. Nothing gained in your setup.
2) You lose the power conditioning capability of the UPS on the non-UPS side with your setup.
3) You MUST remember to always keep enough capacity on the UPS to carry the entire system when the utility fails or the additional load will overload the UPS and 'down she goes'. Since that's the case, why not have both power supplies on the UPS to start with?
4) When utility power fails you get a bunch of errors in SAL and WRKPRB because one of the Power Supplies loses power and to the system appears to have failed. This will probably cause the system to cry wolf with IBM about a problem that isn't their fault. So now you get to un-clutter these logs and beg IBMs forgiveness.

FYI the 110000AC SRC is logged AFTER the system comes back up so looking for that one is like tacking up a 'no smoking' after a gas explosion.

The CPPEA56 is a possibility but that goes back to the system thinking a component has failed and you'd then need to look in the problem log for SRCs to see what actually failed. I'd focus on getting the UPS interface working properly.

- Larry "DrFranken" Bolhuis

On 8/2/2010 11:38 AM, James H. H. Lampert wrote:

We have one side of our production box plugged into the UPS, and the
other side plugged into the wall. This not only guards against UPS
malfunctions; it also gives us a way to monitor the power.

This weekend, we had an unattended 80-minute power outage, which (not
surprisingly) drained the UPS completely dry, and left us down for most
of a day.

The fact that I found a 110000AC SRC, and a CPPEA56 in the history log
suggests that there's something I can tie into, so that the system can
send a distress call as soon as the outage occurs.

But what should I be looking for?

--
JHHL