Adaptable Service Level Objective Agreement (A-SLO-A) for Cloud Services

Abstract

Reducing IT costs by using Cloud Computing is tempting for start up companies. To attract companies to outsource their services to Clouds, Cloud provider need to offer Service Level Objectives specified in SLAs individually for their customers. Cloud provider like Amazon can not afford to negotiate individual SLAs manually. Therefore, it becomes important to develop a format for machine-readable SLAs which can easily adapt to the individual Service Level Objectives requested by the customer any time. Because of its adaptability at run time by each individual customer on demand, this comply with the characteristics of Cloud Computing and to satisfies the customer's requirements to be flexible. This paper describes an adaptable Service Level Objective Agreement (A-SLO-A) format being machine-processed to offer the possibility to integrate the SLA management into the highly automated processes of resource provisioning. Use cases show its applicability.