Page 907 - Cloud computing: From paradigm to operation
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Intercloud and interoperability                                     5


                                     Table II.18 – Test case: storage resource reservation

                                          Storage resource reservation test description

             Test purpose          To verify that the CSC reserves available storage resource (e.g., storage space and LUN)
                                   for the VM.
             Reference             [ITU-T Y.3513] clause 7.2.5
             Test sequence   Step      Type                          Description                      Result
                            1      Stimulus      The CSC configures storage reservation for VM A, which has
                                                 guaranteed minimum allocation of storage space.
                            2      Stimulus      The CSC runs an application to perform heavy consumption
                                                 of storage usage on VMs hosting in the same host except for
                                                 VM A. The total consumption of storage is close to the
                                                 amount of the storage available for the host.
                            3      Stimulus      The CSC performs heavy consumption of storage usage on
                                                 VM A.
                            4      Check         VM A can get the storage resource.
             Test verdict   It is deemed as successfully terminated if all the checks are successful, otherwise it is
                            deemed as failed.

            II.2.5   Test case: I/O performance
            Table II.19 shows the test case for I/O performance.


                                          Table II.19 – Test case: I/O performance

                                               I/O performance test description
             Test purpose          To verify that the CSC constrains I/O traffic of a particular VM with a specified level.

             Reference             [ITU-T Y.3513] clause 7.2.4
             Test sequence   Step      Type                          Description                      Result
                            1      Stimulus      The CSC runs an application to perform heavy reading and
                                                 writing of storage on VM A. It records the actual IOPS
                                                 obtained by VM A.
                            2      Stimulus      The CSC configures I/O performance limitation for VM A. The
                                                 IOPS limit configured is significantly lower than the IOPS
                                                 obtained in step 1.
                            3      Stimulus      The CSC runs an application to perform heavy reading and
                                                 writing on VM A.
                            4      Check         The actual IOPS obtained by VM A does not exceed the
                                                 limitation.
             Test verdict   It is deemed as successfully terminated if all the checks are successful, otherwise it is
                            deemed as failed.

            II.2.6   Test case: storage life cycle management
            Table II.20 shows the test case for storage life cycle management.














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