Cloud

Decision Model for Cloud Computing Under SLA Constraints

Date Added: Apr 2010
Format: PDF

With the recent introduction of Spot Instances in the Amazon Elastic Compute Cloud (EC2), users can bid for resources and thus control the balance of reliability versus monetary costs. A critical challenge is to determine bid prices that minimize monetary costs for a user while meeting Service Level Agreement (SLA) constraints (for example, sufficient resource availability to complete a computation within a desired deadline). The authors propose a probabilistic model for the optimization of monetary costs, performance, and reliability, given user and application requirements and dynamic conditions.