Page 606 - Cloud computing: From paradigm to operation
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3                                                       XaaS









































                                     Figure 9-4 – Functions and reference points in VI-FS
            9.4.1   Infrastructure access management function

            The IAM-F approves virtual desktop resource allocation through I_PA_IAM and the virtual desktop access
            through I_DPP_IAM. The IAM-F authorizes resource access from the administrator in order for the RAD-F to
            allocate, release, change and distribute resources through the I_IAM_RAD. The IAM-F also sends the request
            for resource assignment, change and cancellation from the RAD-F to the RA-F through I_ IAM _RA. Finally,
            the  IAM-F  delivers  monitoring  information  and  controls  through  the  I_IAM_MC.  A  detailed  functional
            description for the IAM-F is specified in clause 7.1.4.

            9.4.2   Performance enhancement for virtualization platform function
            The  PE-F  enhances  the  performance  of  virtualization  platform  and  virtual  desktop.  The  PE-F  configures
            virtualization platform or infrastructure with the PV-F through the I_PE_PV. A detailed functional description
            for the PE-F is specified in clause 7.1.3.
            9.4.3   Resource assignment function

            The RA-F receives the resource assignment which is sent through the IAM-F during the creation of a virtual
            desktop. The RA-F assigns the resources to the virtual desktop on the PV-F through I_RA_PV according to the
            request from the IAM-F. According to the resource change from the IAM-F, the RA-F re-assigns the resources
            to the PV-F through the I_RA_PV. A detailed functional description for the RA-F is specified in clause 7.1.2.
            9.4.4   Platform virtualization function

            The PV-F configures the DaaS platform according to the PE-F. The PV-F transmits the monitoring information
            and  receives  controls  through  I_IAM_PV.  A  detailed  functional  description  for  the  PV-F  is  specified  in
            clause 7.1.1.










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