Picture 1. PDU delivering power to 8 server machines in our experimental system rack.
Picture 2. Screen dump of the PDU’s Web interface. We can turn individual servers ON or OFF. We can observer power consumption of individual servers as well as the overall power consumption of the PDU.
Picture 3. One of the many lessons we learned during the course of this project. Shown in the figure is an extension cord (15 Amps) that was supplying power to our PDU (which is 20 Amps). Upon connecting 11 servers to the PDU, the extension cord melted! With the help of our CSE IT support, we isolated our servers and the PDU to a separate part of the machine room and directly connected the PDU to a 20 Amp wall-circuit without using any extension cords.