PUE Summary Report Calculations
In this sample, all time periods are based on July 25, 2013.
|
24 Hours |
7 Days |
30 Days |
Last 12 Months |
|---|---|---|---|
|
From July 24 12:00AM until |
From July 18 12:00AM until |
From June 25 12:00AM until |
From July 25, 2012 12:00AM until |
The values in the table below are calculated as follows:
PUE – The ratio between the data center and IT equipment energy measurement values. This value is calculated for each of the required time periods by the following formula:
|
PUE = |
Sum of Data Center Energy |
|
Sum of IT Equipment Energy |
IT Equipment – The average of the IT equipment power measurement values for each of the time periods.
Data Center – The average of the data center power measurement values for each of the time periods.
The values displayed in the charts below are calculated as follows:
PUE Trend – The weekly PUE values are calculated by the following formula where N represents a week of the year:
|
PUE week N = |
Sum [ Data Center Energy ] week N |
|
Sum [ IT Equipment Energy ] week N |
Energy Trend – The weekly energy values for IT equipment and support are calculated by the following formulas where N represents a week of the year:
|
IT Equipment Energyweek N = |
Sum [ IT Equipment Energy ] week N |
|
|
Support Energy week N = |
Sum [ Data Center Energy] week N - Sum [ IT Equipment Energy ] week N |
|