Availability Management
Availability management is the optimisation of the availability and reliability of IT services and of the supporting IT infrastructure and organisation, in order to ensure that the requirements of the business are met.
Availability management entails systematically undertaking preventative and corrective maintenance of IT services, within justifiable cost. Technical, organisational, procedural, security and contractual aspects have an important role in this process.
The aspects of availability management to be covered by this questionnaire are:
Reliability:
the capability of an IT component to perform a required function under stated conditions for a stated period of time.
Maintainability:
the capability of an IT component or IT service to be retained in, or restored to, a state in which it can perform its required functions.
Serviceability:
a contractual term which is used to define the availability of IT components as agreed with external organisations supplying and maintaining these components.
Security:
providing access to IT components or IT services under secure conditions.
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