| Values from the power calculators can be entered into Capacity Advisor, which will use these values to compute the power and energy needs of a target server at different times of day and under different loads.
A more accurate and easier to use power estimate results when combining Capacity Advisor with Insight Power Manager (IPM). Capacity Advisor will get detailed power readings from IPM, and then use least squares techniques to find the relationship between the use of the system and the power consumed.
Different applications have different power profiles as they run. The power calculators are calibrated with floating point intensive workloads that draw a lot of power. The goal is to for the power calculators to reflect a conservative estimate of the power needs for the server. Together with IPM, Capacity Advisor can estimate the power that will be used by the specific application being run on the server.
Once the relationship between system use and power is established from historical data, Capacity Advisor can use that to predict power needs in the future. This prediction takes into account the forecasted growth rate of the workloads, and will take into account planned configuration changes such as stacking more workloads or virtual machines on the server.
When considering upgrading to different servers, Capacity Advisor can compare how much electricity each server will use per month. This allows energy costs to be considered in purchasing decisions.
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