serial cable right! Now, onto the finer details of event configuration
and working out exactly how to deal with our dual-PSU servers supplied by different UPS: Some work ahead for me.

Good to hear that you got things going. As for the dual supply servers on two ups units, this is what lead me to use Nut in the first place. The docs discuss this setup:

http://www.networkupstools.org/doc/2.0.1/data-room.html

The main thing you need to make sure of is that your server does not freak when it looses power on one unit. We had some ML370 Compaq servers that would boot and run on one supply but if the server booted with all three supplies (yes three) plugged in and the one plug was pulled the server would shut off. Our dual unit servers seem to be fine loosing one supply (DL380) as I have moved the servers between UPS units by moving one plug at a time.

In my scenario I used one server (actually a virtual server) to monitor all 20+ UPS units and then let the servers talk to it for status.

Doug


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