Service-level objective: Difference between revisions

Revision as of 14:45, 7 February 2017

Revision as of 11:06, 8 February 2017

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==Overview==

There is often confusion in the use of SLA and SLO. The SLA is the entire agreement that specifies what service is to be provided, how it is supported, times, locations, costs, performance, and responsibilities of the parties involved. SLOs are specific measurable characteristics of the SLA such as availability, throughput, frequency, response time, or quality. These SLOs together are meant to define the expected service between the provider and the customer and vary depending on the service's urgency, resources, and budget.

The SLO may be composed of one or more quality-Quality of-service Service (QoS) measurements ([[service level indicator]]s, SLIs) that are combined to produce the SLO achievement value. As an example, an availability SLO may depend on multiple components, each of which may have a QOSQoS availability measurement. The combination of Quality of Service (QOS)QoS measures into an SLO achievement value will depend on the nature and architecture of the service.

==Examples==