Capacity management is concerned with optimized utilization of IT resources in order to achieve the level of performance agreed to with the client. These resources are supplied by supporting organizations to ensure the requirements of the business are met. The process of capacity management can be either reactive or proactive. Iterative activities, such as monitoring, analyzing, tuning, and reporting, are also important in the process of managing resources and service performance. The type of data for each differs. For example, the level of utilization of individual components in the infrastructure is of interest to management of IT resources, while the transaction throughput rates and response time are of interest in managing service performance.
Report the performance of the service into data that can be used to support decision making.
For clarity, it may be easier to calculate the daily statistics on a per performance object basis. You should also consider that these reports will feed into measuring of SLAs, operating level agreements (OLAs), and underpinning contracts (UCs).
Performance logs being captured on the service. (See Process: Perform Monitoring)
Microsoft Excel or third-party spreadsheet application