Information Technology Reference
In-Depth Information
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Evaluation Criteria to Run Scientific
Application
s in the Cloud
Eduardo Roloff, Alexandre da Silva Carissimi,
and Philippe Olivier Alexandre Navaux
CONTENTS
Summary .................................................................................................................. 2
1.1 Introduction .................................................................................................... 2
1.2 Cloud Service Models ................................................................................... 2
1.2.1 Software as a Service ......................................................................... 3
1.2.2 Platform as a Service ......................................................................... 4
1.2.3 Infrastructure as a Service ................................................................ 4
1.3 Cloud Implementation Models .................................................................... 4
1.3.1 Private Cloud ...................................................................................... 5
1.3.2 Community Cloud ............................................................................. 5
1.3.3 Public Cloud ....................................................................................... 5
1.3.4 Hybrid Cloud ...................................................................................... 6
1.3.5 Summary of the Implementation Models ...................................... 7
1.4 Considerations about Public Providers ...................................................... 7
1.4.1 Data Confidentiality .......................................................................... 7
1.4.2 Administrative Concerns ................................................................. 8
1.4.3 Performance ........................................................................................ 8
1.5 Evaluation Criteria ......................................................................................... 9
1.6 Analysis of Cloud Providers ...................................................................... 10
1.6.1 Amazon Web Services .................................................................... 10
1.6.2 Rackspace .......................................................................................... 10
1.6.3 Microsoft Windows Azure ............................................................. 11
1.6.4 Google App Engine ......................................................................... 11
1.7 Cost Efficiency Evaluation .......................................................................... 12
1.7.1 Cost Efficiency Factor ...................................................................... 12
1.7.2 Break-Even Point .............................................................................. 13
1.8 Evaluation of Providers: A Practical Example ......................................... 14
1.9 Conclusions ................................................................................................... 16
References ............................................................................................................... 16
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