ITIL Capacity Management

Capacity Management is directly related to the business requirements and is not simply about the performance of the system's components, individually or collectively. Capacity Management is involved in Incident resolution and Problem Identification for those difficulties relating to capacity issues.

Capacity Management activities raise Requests for Change (RFCs) to ensure the appropriate capacity is available. These RFCs are subject to the Change Management process, and implementation may affect several CIs, including hardware, software and documentation, requiring effective Release management.

Capacity Management should be involved in evaluating all Changes, to establish the effect on capacity and performance. This should occur both when changes are proposed after they are implemented. Capacity Management should pay regular attention to the cumulative effect of Changes over a period of time. The negligible effect of single Changes can often combine to cause degraded response times, file storage problems, and excess demand for processing capacity.