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OK Consider:

Properly connected UPS cable sends message to ALL LPARS on the system immediately. Said LPARs can be in any condition, including dedicated, and will still get UPS messages.

SNMP will require the partitions to be up and running and have the correct service running or they will not know the UPS has gone to battery or potentially low battery. If for example a switch between the Power Server and the SNMP device happens not to be up the UPS the system will never get the UPS on battery signal. This would be bad practice/configuration of course, but another point of failure.

- Larry "DrFranken" Bolhuis

On 3/18/2011 2:48 PM, rob@xxxxxxxxx wrote:
Instead of dedicated UPS interface cables, which, figuring out the wiring
gets to be a PITA and then there's the whole multilpar thing... I am
looking at SNMP also. With two UPS in two different cities, both
controlling their own systems I would like an SNMP message to my cell
phone. However I only want a message if the blackout/brownout lasts over
a minute. Apparently standard SNMP software throws up it's hands at
conditioning based on two messages. And if I start getting pages in the
middle of the night for every temporary hiccup you can bet that cell phone
will be turned off and left downstairs.


Rob Berendt

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