Configuring the PUE DCiE

EcoStruxureIT · ‎2019-11-06

Configure the device sensor measurements, or any known constants of the energy system, to ensure the configuration accurately reflects the live physical infrastructure of the system.

When configured, you can view the PUE/DCiE dial published to the PUE/DCiE Dashboard, showing the PUE/DCiE value based on the configured values for power entering the data center and IT load.

The PUE/DCiE Dashboard, available in the IT Advisor web client Dashboard menu, shows measured data collected daily (midnight to midnight), also referred to as measurement sampling level 2, intermediate according to the Green Grid definitions.

For information about the energy efficiency concepts, such as Power Usage Effectiveness (PUE), go to: the Green Grid and read the White Papers:

WP-157: Selecting an Industry-Standard Metric for Data Center Efficiency
WP-154: Electrical Efficiency Measurement for Data Centers
WP-114: Implementing Energy Efficient Data Centers
WP-113: Electrical Efficiency Modeling for Data Centers

You can toggle the efficiency metric between PUE and DCiE in the desktop client Tools> Preferences> General option.

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123 Steps to...

Configuring the energy system

Use the icons in Power In section of the Configuration tab to set up the system with information about the total amount of power entering the data center.
1. Add device sensor measurements by clicking this icon 102237710_360038495533.png.
2. In the wizard, follow the steps to select one or more devices and sensors from the list.
  
  Tip: Select multiple non-consecutive items by using Ctrl-click, or multiple consecutive items by using Shift-click.
3. You can filter the list and search for one or more devices or sensors to add to the PUE/DCiE calculation by starting to type the name or model in the Search field.
  As you type in the Search box, the list shows all equipment that contains the typed characters in the selected column.
4. Add custom values by clicking this icon 102237673_360038495533.png.
5. In the dialog box, type Name, Value, Unit, and Factor.
  Unit and Factor can be used to make adjustments to the value, e.g. if the unit of one item does not match the others, such as kW and W or kVA, or if there is a factor that needs to be left out of the calculation, for example if the value is a total and some of it is used for other data centers as well.
6. Delete any obsolete entries by clicking this icon 102237669_360038495533.png.
Use the icons in IT Load section of the Configuration tab to set up the system with information about how much power is needed by the IT load in the data center.
1. Add device sensor measurements by clicking this icon 102237710_360038495533.png.
2. In the wizard, follow the steps to select one or more devices and sensors from the list.
  
  Tip: Select multiple non-consecutive items by using Ctrl-click, or multiple consecutive items by using Shift-click.
3. You can filter the list and search for one or more devices or sensors to add to the PUE/DCiE calculation by starting to type the name or model in the Search field.
  In the Search box, start typing some characters of the equipment you want to see. As you type, the pane shows all items that contain the typed characters in the column that is selected.
4. Add custom values by clicking this icon 102237673_360038495533.png.
5. In the dialog box, type Name, Value, Unit, and Factor.
  Unit and Factor can be used to make adjustments to the value, e.g. if the unit of one item does not match the others, such as kW and W or kVA, or if there is a factor that needs to be left out of the calculation, for example if the value is a total and some of it is used for other data centers as well.
6. Delete any obsolete entries by clicking this icon 102237669_360038495533.png.
See the results of the configuration expressed as a graph in the PUE/DCiE dial published to the PUE/DCiE Dashboard available from the ITA web client Dashboard menu.

Note: The PUE/DCiE graph shows the calculated PUE/DCiE based on measured data collected on a daily basis (midnight to midnight). This data collection method is also referred to as measurement sampling level 2, intermediate according to the Green Grid definitions.

When you add a sensor to the calculations, the data collected from this sensor the previous day, if any, is included in the calculations immediately.
When you add a newly-installed sensor, its value will be included in the calculations once the data collection has run for 24 hours or at least since before the previous midnight.