It is a key element for proactive engineering of IT services, making sure that certain IT resources and infrastructure can be utilized or are made available should the need arises. Capacity Management activities include the following :
> Monitoring and modeling to simulate the performance of IT services and its supporting components, and understand future resource needs
>Analyzing, tuning, and implementing necessary activities to make efficient uses and changes in resource utilization
> Managing and understanding the current demands for computing resources and deriving forecasts for future requirements, which involves an understanding of business priorities
> Application sizing to ensure required service levels can be met
> Building the yearly infrastructure growth plan with input from other team members
> Storing capacity management data while predicting the IT resources needed to achieve agreed service levels and
> Producing a capacity plan that documents current utilization and forecasted requirements, as well as support costs for new applications or releases.