Availability management is the management of the uptime of business and technology services. It is typically focused on designing services for high availability, managing maintenance activities and reporting uptime data to customers and internal clients. Availability management is also closely related to incident & problem management activities that seek to minimize the impact of service failures.
Common TargetsIn the case of technology services, it is common for the following availability targets to be established.
|Availability||Downtime (annual)||Known As|
|99%||3.65 days ||two nines|
|99.9%||8.76 hours||three nines|
|99.99%||52.56 minutes||four nines|
|99.999%||5.26 minutes||five nines|
|99.9999%||31.5 seconds||six nines|
|99.99999%|| 3.15 seconds ||seven nines|
This is the complete list of articles we have written about service management.
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A list of IT service management terms.
The difference between a SLA and a OLA.
The difference between incidents and problems explained.
A list of common high availability techniques.
The common functions of application management.
An overview of capacity management.
A definition of DevOps with an outline of its components.
The definition of IT services with examples.
An overview of patch management with examples.
An overview of process improvement with examples.
A definition of service level agreement with a few examples.
A list of common service level objectives.
The difference between Service Level Agreements and Service Level Objectives.
An overview of service delivery with examples.
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