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Chapter 11 Cloud Services Chen Xu , Jizhe Xia, Qunying Huang, and Myra Bambacus

Chapter 11 Cloud Services Chen Xu , Jizhe Xia, Qunying Huang, and Myra Bambacus. C. Xu , J. Xia, Q. Huang, and M. Bambacus , 2013. Chapter 11 Cloud Services, In Spatial Cloud Computing: a practical approach, edited by C. Yang, Q. Huang, Z. Li, C. Xu , K. Liu, CRC Press: pp. 181-200.

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Chapter 11 Cloud Services Chen Xu , Jizhe Xia, Qunying Huang, and Myra Bambacus

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  1. Chapter 11 Cloud ServicesChen Xu, Jizhe Xia, QunyingHuang, and Myra Bambacus C. Xu, J. Xia, Q. Huang, and M. Bambacus, 2013. Chapter 11 Cloud Services, In Spatial Cloud Computing: a practical approach, edited by C. Yang, Q. Huang, Z. Li, C. Xu, K. Liu, CRC Press: pp. 181-200.

  2. Learning Objectives • Critical factors that may impact the capacities of cloud providers to effectively offer services to customers. • Three IaaS cloud services: Amazon EC2, Windows Azure, and NASA Nebula

  3. Learning Modules • Critical factors that may impact the capacities of cloud providers to effectively offer services to customers. • Three IaaS cloud services: Amazon EC2, Windows Azure, and NASA Nebula

  4. Critical Factors • Geographic presence • User interfaces and access to servers • Automatic scaling and load balancing • Service level agreement (SLA)

  5. Amazon EC2 – Geographic presence • Amazon has data centers located in nine regions.

  6. Amazon EC2 – User interfaces and access to servers • AWS Management Console

  7. Amazon EC2 – User interfaces and access to servers • Amazon EC2 is a paravirtualized environment based on Xen. • Amazon EC2 supports both Windows and Linux operating systems. • Amazon EC2 has flexible and multiple price models. • Then tenant model • Geographic regions • Computing usage • Instance types • Operating system of the instance

  8. Amazon EC2 – Automatic scaling and load balancing • Amazon EC2 provides an auto-scaling service. • Two advanced services in the Cross Service layer. • Elastic Beanstalk • CloudFront

  9. Amazon EC2 – Service level agreement (SLA) • Amazon EC2 SLA guarantees 99.95% availability for all Amazon regions. • All other AWS services, such as CloudFront, provide an SLA with a service level commitment of 99.9% availability in general.

  10. Windows Azure – Geographic presence • Windows Azure has data centers located in eight regions.

  11. Windows Azure – User interfaces and access to servers • Windows Azure interface includes a management portal and command-line tools. • Several Microsoft products (e.g., Microsoft Visual Studio and Microsoft WebMatrix) could help deploy and manage user applications and cloud resources.

  12. Windows Azure – User interfaces and access to servers • Windows Azure Hypervisor is specially designed. • Windows Azure currently supports both Windows and Linux operating systems for VMs. • Windows Azure’s service price is calculated based on computing usage: • Website cost • Virtual machines cost • Cloud service cost • Mobile service cost • Data management cost

  13. Windows Azure – Automatic scaling and load balancing • Windows Azure enables computing resources to be separated from storage to achieve independent scalability of computing and storage. • Flat Network Storage (FNS) improves bandwidth of network connectivity to support Windows Azure VMs.

  14. Windows Azure – Service level agreement (SLA) • Windows Azure guarantees a 99.95% computing reliability and 99.9% role instance and storage reliability.

  15. A Brief Introduction of NASA Nebula • Nebula is a federal cloud computing service served by NASA. • It is an open-source project. • Nebula is dedicated to support NASA scientific tasks with a private cloud.

  16. A Brief Introduction of NASA Nebula • Nebula only has so far realized limited scalability. • Its services are compatible with Amazon EC2. • It leverages the Eucalyptus API for VM control.

  17. A Brief Introduction of NASA Nebula • Nebula provides an graphical user interface and a set of command-line tools for service management. • Nebula uses KVM hypervisor. • It supports two Linux distributions: Ubuntu and CentOS.

  18. Conclusion

  19. Questions • Please enumerate five key considerations in commercial cloud service comparison. • Please enumerate the five layers of Amazon AWS architecture and briefly summarize their core functionalities. • What are the core advantages and the biggest concerns of Amazon AWS? • Please enumerate the core components of Windows Azure and briefly summarize their core functionalities. • What are the core advantage and the biggest concerns of Windows Azure? • What are the major difference of NASA Nebula from the other tow cloud services regarding their targeted customers? • Enumerate two other popular cloud services and discuss the advantages of using the cloud services.

  20. References • AWS , 2012. Overview of Amazon Web Services.http://media.amazonwebservices.com/AWS_Overview.pdf • Bondi, A.B., 2000. Characteristics of scalability and their impact on performance.ACM WOSP’00 Proceedings of the 2nd International Workshop on Software and Performance, New York, NY. • ISACS, 2012. Cloud Computing Market Maturity: Study Results. https://downloads.cloudsecurityalliance.org/initiatives/collaborate/isaca/2012-Cloud-Computing-Market-Maturity-Study-Results.pdf (Retrieved on Jan. 24, 2013). • Li, A., Yang, X., Kandula, S., and Zhang, M., 2010.CloudCmp: Comparing public cloud providers. IMC’10, November 1-3, 2010, Melbourne, Australia. • Saini, S., Heistand, S., Jin, H., Chang, J., Hood, R., Mehrotra, P., and Biswas, R. 2012.An application-based performance evaluation of NASA’s Nebula cloud computing platform.2012 IEEE 14th International Conference on High Performance Computing and Communications, 336-343. • Scheier, R.L. 2012. Virtualization management: A single pane of glass. CIO.IN. http://www.cio.in/article/virtualization-management-single-pane-glass (accessed on April 19, 2013). • Smith, R. 1996. Distance is dead: the world will change. BMJ 313: 1572. • Solnik, R. 2012. Cloud Management Through a Single Pane of Glass, Not a Kaleidoscope. http://www.informationweek.com/cloud-computing/infrastructure/cloud-management-through-a-single-pane-o/240001622 (last accessed 2/22/2013). • Varia, J., 2011.Amazon EC2 and AWS Elastic Beanstalk Introduction.http://www.slideshare.net/AmazonWebServices/amazon-ec2-and-aws-elastic-beanstalk-introduction

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