The Third 
      Generation
     reach                                                 The
                                                         Cloud
                                          The                       virtualized 
                                         Web                          services
                                                 information &
               The                               e-commerce
            Internet                       “A pool of abstracted, highly scalable, 
                          connectivity     “A pool of abstracted, highly scalable, 
                                           and managed infrastructure capable of 
                                           and managed infrastructure capable of 
                                           hosting end-customer applications and 
                                           hosting end-customer applications and 
                                                                                time
                                              billed by consumption,” Forrester
                                              billed by consumption,” Forrester
                 1970     1980    1990      2000     2005     2010      2020
      2
                    “Everything as a Service”
                          Delivered by the Cloud
                                  Media sharing      Business Apps
                        Backup
                                                                  Management Apps
                     Search
                                                                    Mobile Services
                   Email
              Productivity                                      Location-Based
                  Apps                                             Services
                       Social
                    Networking                              Storage 
                                 Platform                      on
                               on Demand Infrastructure
                                              on Demand Demand
                               Cloud Computing Means Many 
                               Cloud Computing Means Many 
                            Different Things To Different People
                            Different Things To Different People
      3
      What do we mean by cloud?
             Service providers                               Service users
                     The cloud is a means by which global class, 
                     highly scalable and flexible services can be 
                     delivered and consumed over the internet 
                    through an as-needed, pay-per-use business 
                                          model. 
                                    What’s new?
                 New access:         New capabilities:      New connections: 
                everything is a         multi-tenant          information in 
                    service               software               context
      4
      The cloud (r)evolution: solving 
      problems that current technology 
      models can’t solve 
            Service providers                                                 Service users
             Services and                New connections                     Information 
             data break                                                      relevance
             apart
             Multi-tenant                   New capabilities                 Flexible 
             applications                                                    consumption
                                           New access
                                               EaaS
            Existing apps 
            and                                                              Contract-
            infrastructure          Technology over the internet             based 
                                                                             consumption
       5      Sep 10, 2022
      Massive Scale-out and the Cloud
                Enterprise Class                                        Global class
                                  On-premise                  Hybrid/off-premise
                              100s -1000s of nodes             10,000+  nodes
                                  Proprietary                    Commodity
                                 HW resiliency                  SW resiliency
                               Max performance                  Max efficiency
                               Silo’ed Resources              Shared Resources
                                    Clusters                     Grids/Cloud
                                     Static                        Elastic
         Cost-Center                                                                     Value/
                                Shared storage                Replicated storage   Revenue-Center
                                  Facility costs            Power Usage Efficiency
       6   17 Decmeber 2008