Capacity management

Capacity management is a process used to manage information technologies (from here onwards). The objective is to ensure that the capacity of IT systems meet the current and future requirements of the organization with affordable costs. One of the usual definitions of capacity management is defined by the ITIL framework. The different versions of ITIL consider that capacity management encompasses three sub-processes: business capacity management, service capacity management, and component capacity management (known as capacity management of the resources in the version 2 of ITIL).

As the use of IT services changes and the functionalities evolve, the processing capacity, memory, etc. also changes. It is necessary to understand the impact of loading on the resources / infrastructure of the current Business demand and how this will change over time, to plan the necessary action plans to ensure that the needs of the Business are covered while eliminating the (possible system saturation, possible breakdown of Sla's, etc ...) so that the management of IT services is proactive and simplified (lower number of incidents). For example, if there is a sudden increase in the need for processing capacity at a certain time of the day, you should analyze what happens at those times and make the necessary changes to maximize the necessary infrastructures, such as performing an application tuning or schedule batch cycles to a schedule with less usage.

These activities are performed to optimize performance and efficiency, and to plan and justify investments. Capacity management takes into account:

Capacity management interacts with performance engineering discipline, both during requirements taking and system design and construction activities, as well as using performance monitoring to obtain information on the capabilities of the systems. systems used.

It is increasingly important to maintain a constant link with demand management, so that it can be influenced by a criterion of performance and efficiency for all incoming new needs (projects, new services, etc.)

Capacity management is a process used to plan the occupation of industrial processes by determining the theoretical capacity of the process and its occupation according to demand, so that an optimum of installation and response to the demand.

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