About cooling and power data display

The appliance provides the following detailed health data, which you can use to determine the power and cooling capabilities of the devices in your data center.

Screen component


Width x Depth

A maximum of 50 meters (164.042 feet); metric or US measurements, determined by the locale setting of your browser.

Electrical derating

The percentage below the rated maximum power dissipation at which the devices are operated, accounting for case/body temperature, ambient temperature, and type of cooling.

You can specify a derating percentage by selecting Custom or you can choose not to apply derating to the rated maximum power dissipation by selecting None. The default value is: NA/JP (20%)—North America/Japan

Default voltage

220 V

Power costs

The energy cost per kWh, specified by the user-selected currency.

Cooling capacity

The maximum cooling capacity for the data center, in KW. The appliance analyzes heat generation using this value.

Cooling multiplier

The ratio of cooling cost to power cost for the data center. This value represents the relative cost of cooling the system compared to the cost of powering the system. The default value of 1.5 indicates that it costs 1.5 times as much to cool the system as it does to power the system.

The cooling multiplier is multiplied by the kWh consumed by the system to obtain the cooling kWh. The appliance uses this value for graphs that display power consumption.

While the overall cooling in your data center might be sufficient, there might be areas that are insufficiently cooled due to factors such as poor airflow, concentration of excessive heat output, or wrap-around airflow at the ends of aisles. You can also determine the ratio of the cooling cost to the power cost for the data center by looking at the Cooling multiplier value.

You can investigate cooling issues using the 3D data center visualization, which uses color coding to display the peak temperatures of your racks. To do this, you must first enter the physical positions of the racks in your data center. You can then view the peak observed temperature in each area of your data center over the last 24 hours. If you have configured thermal limits for your racks, you can view any potential violations of these limits by hovering your pointer over a rack.