Figure 6: Power consumption graph in Insight Control showing the and average and peak observed power consumption and the power cap for a rack of servers.

Power monitoring

As we mentioned earlier, potentially overloaded circuits can lead to unscheduled downtime. The power monitoring capabilities of Insight Control let you accurately measure power use so you can manage it better. Insight Control provides a detailed power summary at several distribution levels, including the data center, rack, PDU, and server. Figure 7 displays a Power Summary meter for a server showing the following information:

Peak Observed Power is the peak power consumption concurrently observed for all attached devices during a recorded history of up to three years.

Calibrated Max Power is a prediction of the server’s maximum power use based on a benchmark test that occurs when the server boots.

Minimum Power is the least amount of power required to power-on the server

Capacity is the available or maximum power limit of the power delivery device, such as a circuit breaker or PDU.

Power cap (yellow dot) is the capped power consumption of the server.

You can safely use the Calibrated Max Power to reserve enough capacity for the server, based on its present configuration, without relying on inaccurate estimates made from faceplate ratings or other

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