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Availability Management

What is Availability Management

Availability Management is concerned with design, implementation, measurement and management of IT services to ensure the stated business requirements for availability are consistently met. Availability Management requires an understanding of the reasons why IT service failures occur and the time taken to resume service. Incident Management and Problem Management provide a key input to ensure the appropriate corrective actions are being progressed.

The measurements and reporting of IT availability ensures that the level of availability delivered meets the SLA. Availability Management supports the Service Level Management process in providing measurements and reporting to support service reviews.

Other ITIL Processes

In order to have a good understanding of ITIL and the importance of configuration management, we first define what ITIL is: ITIL is literally a collection of documentation.

This documentation can help IT organizations implement the best practices. The documentation grows and grows as more successful techniques are documented and guidelines established for what can make others successful. The latest ITIL resources are published by the UK Office of Government Commerce (OGC).

Integrated service delivery refers to the need for Configuration Management, Change Management, Incident Management, Problem Management and Release Management processes that are linked together in a meaningful manner. For example, the process of releasing components to the live environment (the domain of Release Management) is also an issue for Configuration Management and Change Management whilst the Service Desk is primarily responsible for liaison between IT providers and the Users of services. This section highlights the links and the principal relationships between all the Service Management and other infrastructure management processes.

ITIL processes fall under Operational Layer or Tactical Layer, as follows:

Operational Layer: Configuration Management - Service Desk Management - Incident & Problem Management - Change Management - Release Management
Tactical Layer: Service Level Management - Availability Management - Capacity Management - Continuity Management - Financial Management