Open Access Open Access  Restricted Access Subscription or Fee Access

Penalty Model for SLA Architecture in Cloud

S. Absa, Shajulin Benedict


Cloud computing is emerging as a commercial infrastructure for providing the computing facilities on par with Supercomputers. It has the capability to scale up to „n‟ number of processes or threads as required by the application developers. The cloud concept has motivated the application developers to host their applications as Cloud service with the service providers such as Amazon, GoGrid, Mosso, Google Cloud, and so forth. To host such applications, in general, they sign up a Service Level Agreement (SLA) with the providers to ensure high availability (99.99%), security, and reduce managerial issues. Similarly, the cloud users who utilize the cloud services sign up the SLA as a part of a service contract where the level of service is formally defined. The service contract could explicitly specify the number of cores available for a certain time, the CPU speed, the network bandwidth, the cache behaviour, the percentage of parallelization, and so forth. In most of the cases, however, the performance is not met as per the agreement signed between the service providers and the service consumers. The challenge is more crucial when the number of consumers increases or when the demand for resources increases. This paper proposes a penalty-based SLA architecture for cloud environments. In case of violation by the service provider this model imposes penalty measuring the degree of violation. In addition, the paper highlights the merits and demerits of the existing architectures in SLA-based clouds.


Service Level Agreements, SLA Parameters, Monitoring, Cloud services, Architecture

Full Text:



Sherif Sakr, Anna Liu, Daniel M. Batista, and Mohammad Alomari, 2011,A Survey of Large Scale Data Management Approaches in Cloud Environments, IEEE communications surveys and tutorials, vol. 13, no. 3,

Rimal, B.P.; Eunmi Choi; Lumb, I. 2009, A taxonomy and survey of cloud computing systems, Fifth International Joint Conference on INC, IMS and IDC NCM '09

Mohammad Alhamad, Tharam Dilloon and Elizabeth Chang. 2010, Conceptual SLA framework for cloud computing, 4th IEEE International Conference on Digital Ecosystems and Technologies.

Attila Kertesz, Gabor Keeskemeti and Ivona Brandic. 2011,Autonomic SLA-aware Service Virtualization for Distributed Systems, 19th International Euromicro Conference on Parallel, Distributed and Network –Based Processing.

Mohammad Alhamad, Tharam Dilloon and Elizabeth Chang.2010, SLA-Based Trust Model for Cloud Computing, 13th International Conference Network –Based Information Systems

Asma Al Falasi and Mohamed Adel Serhani.2011, A Framework for SLA-Based Cloud Services Verification and Composition.2011 International Conference on Innovations in Information Technology

Ivona Brandic. Vincent C.Emeakaroha, Michael Maurer, Schahram Dustdar, LAYSI: A Layered Approach for SLA- Violation Propagation in Self-manageable Cloud Infrastructures, 34th Annual IEEE Computer Software and Applications Conference Workshops. 2010.

Stefano Feretti, Vittorio Ghini, Fabio Panzieri, Michele Pellegrini and Elisa Turrini.2010, “QoS aware Clouds”, IEEE 3rd International Conference on Cloud Computing, 2010.

Alexandru losup,Simon Ostermann, Nezih Yigitbasi, Radu Prodan, Thomas Fahringer and Dick Epema., “Performance Analysis of Cloud Computing Services for Many-Tasks Scientific Computing”, IEEE Transactions on Parallel and Distributed Systems, 2010.

Amazon Inc.,‟Amazon Elastic Compute Cloud (Amazon EC2),”Dec2008,[online] Available:

GoGrid ,”GoGrid cloud-server hosting,”Dec 2008,[online] Available: OpenNebula,

Pankesh Patel, Ajith Ranabahu, Amit Sheth, “Service Level Agreement in Cloud Computing”, Knoesis Center, Wright State University, USA

Ludwig, H., Keller, A., Dan, A., King, R., Franck, R.: Web service level agreement (WSLA) language specication. IBM Corporation (2003)

Government, U.S.: Federal cloud computing initiative overview [] (2009)

A. Sahai, S. Graupner, V. Machiraju, and A. van Moorsel, "Specifying and Monitoring Guarantees in Commercial Grids through SLA", Hewlett-Packard Laboratories, 3rd IEEE/ACM International Symposium on Cluster Computing and the Grid, Japan, May 2003.

Rubach, P. and M. Sobolewski, Dynamic SLA Negotiation in Autonomic Federated Environments. 2009.

I. Brandic, D. Music, S. Dustdar. Service Mediation and Negotiation Bootstrapping as First Achievements Towards Selfadaptable Grid and Cloud Services. In Proceedings of Grids meet Autonomic Computing Workshop. ACM. 2009.

R. Buyya, C. S. Yeo, S. Venugopal, J. Broberg, and I. Brandic. Cloud computing and emerging it platforms: Vision, hype, and reality for delivering computing as the 5th utility. Future Generation Computer Systems, 2009.

I. Brandic, S. Venugopal, M. Mattess, and R. Buyya.Towards a Meta-Negotiation Architecture for SLA-Aware Grid Services. SENOPT08, in conjunction with International Conference on High Performance Computing 2008 (HiPC 2008), Bangalore, India, December 17 - 20, 2008

NextGRID Consortium, “Next GRID project home page,” 2008,

Amazon. S3 storage, ec2 computing power and sqs for network services, 2009.


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.