OUTLINE
      • What is Cloud Computing ?
           – Examples of Campus clouds
      • Benefits of Cloud Computing, 
           – What can we do with Cloud Computing?
      • Challenges of Cloud Computing
      • Making the case for Campus Clouds
      • Conclusions
         The 20th International Conference on Computer Theory and Applications (ICCTA 2010)           2
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                      What is Cloud Computing
         The 20th International Conference on Computer Theory and Applications (ICCTA 2010)           3
                                    http://iccta.aast.edu/index.php
                      What is Cloud Computing
         Resource availability is a key factor to achieve prosperity 
             of any society,
         Particularly important are computing resources
         To attain their full potential, computing resources need to 
             be efficiently utilized preferably in an aggregated manner. 
         The demand for computing resources can now be met by 
             utility computing, grid computing, and most recently cloud 
             computing.
         The 20th International Conference on Computer Theory and Applications (ICCTA 2010)           4
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                 What is Cloud Computing
                            Utility Computing
      Utility computing providers rent capacity on computing resources 
       that they maintain
        Metered computing: analogous to electric power (Pay per use)
        Resources often virtualized and shared by multiple tenants
        Example: Amazon Elastic Compute Cloud (estimated $60 
           USD/Month for one EC2 Instance for 24hrs/day-7days/week). Pay 
           per use option
            Amazon Elastic Compute Cloud (Amazon EC2) web service 
              provides resizable compute capacity in the cloud
            Designed to make web-scale computing easier for developers. 
           The 20th International Conference on Computer Theory and Applications (ICCTA 2010) 
                             http://iccta.aast.edu/index.php                   5
                What is Cloud Computing
                 Utility versus Cloud computing 
       Cloud computing not only provides raw computing resources, 
         but also hosts the applications that use these resources.
          Applications usually accessed via a web browser.
          User data typically stored on provider's file systems.
       Underlying computing infrastructure concealed from user.
          Example: gmail servers are concealed from users
       Cloud Computing middleware systems are available for building 
         clouds and their applications (e.g., Eucalyptus and Hadoop) 
           The 20th International Conference on Computer Theory and Applications (ICCTA 2010) 
                            http://iccta.aast.edu/index.php                 6