Page 256 - Cloud computing: From paradigm to operation
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1                                    Framework and requirements for cloud computing




                             Table II.3 – Distributed cloud infrastructure and service management

                                                         Use case
             Figure



















             Pre-conditions
             (optional)
             Post-conditions
             (optional)
             Requirements     –  Heterogeneous device access (See clause 7.1)
                              –  Global management (See clause 7.4)
                              –  Heterogeneous resource management (See clause 7.4)
                              –  End device connectivity management (See clause 7.4)
                              –  Resource isolation and protection (See clause 7.5)

            II.4    Distributed cloud infrastructure and service provisioning


                              Table II.4 – Distributed cloud infrastructure and service provisioning

                                                         Use case

             Name             Distributed cloud infrastructure and service provisioning.
             Description      This use case describes the distributed cloud infrastructure and service provisioning.
                              Distributed cloud can provision infrastructure and deliver service among core, regional and edge
                              cloud.
                              The distributed cloud infrastructure contains various hardware and software, including servers,
                              storage, network devices and software. The edge cloud especially is resource-constrained due to
                              space and power.  The infrastructure provision process includes hardware initiation, network
                              configuration  and  software  installation.  After  provisioning,  the  services  including  security
                              functions and suites can be provided based on the infrastructure. Also, if a cloud service needs
                              to use an edge cloud resource, it is reconfigured or developed to run on the edge cloud with small
                              capacity and heterogeneous resources.
                              The  distributed  cloud  infrastructure  can  be  maintained  and  upgraded  by  distributed  cloud
                              management.  The  provisioning  is  a  policy-based  process so  it  can  be  done  automatically  on
                              distributed cloud resources.
                              Once  the  distributed  cloud  infrastructure  has  been  provisioned,  the  cloud  service  should  be
                              deployed and delivered rapidly to the suitable distributed cloud resource by high-speed and
                              reliable  network  connectivity  based  on  service's  SLA,  such  as  required  resources,  maximum
                              latency, required or useful services, etc. The deployed service can be maintained and upgraded
                              based on global management. For accurate global management,  status information of cloud
                              service and distributed cloud resource are synchronized from edge/regional cloud to core cloud.





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