A real projection for a system considers that actual power requirements may ebb or spike with workloads and usage levels. Whether a customer is replacing systems, managing regulatory changes, or considering a consolidation project, it has become a business requirement to accurately forecast a data centre’s power and operational requirements.
HP provides several tools that work together in helping customers to make accurate projections of power needs.
A more accurate and easier to use power estimate results when combining Capacity Advisor with Insight Control power management. Capacity Advisor will get detailed power readings from ICpm, 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 for the power calculators to reflect a conservative estimate of the power needs for the server. Together with Insight Control power management, Capacity Advisor can estimate the power that will be used by the specific application being run 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.