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Page 12

The relationship between the cloud provider and the cloud consumer must be described with a Service Level Agreement. Because cloud consumers trust cloud providers to deliver some of their infrastructure services, it is vital to defne those services, how they are delivered and how they are used.

In addition to the prose that defnes the relationship between the consumer and provider, an SLA contains Service Level Objectives (SLOs) that defne objectively measurable conditions for the service. The consumer must weigh the terms of the SLA and its SLOs against the goals of their business to select a cloud provider.

An SLA contains several things:

• A set of services the provider will deliver • A complete, specifc defnition of each service • The responsibilities of the provider and the consumer

• A set of metrics to determine whether the

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consider which of these best suits the needs of the organization before choosing a cloud provider.

SLA Considerations It is impossible to know whethe are being met without monitori the performance of the service. Management is how that perfor gathered and handled. Measure are based on the Service Level O

The goal of Service Level Manag providers make intelligent decis business objectives and technic example, a provider might notic a particular service is barely me requirements. The provider cou situation by reallocating bandw physical hardware online. Howe

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