Page 1004 - Cloud computing: From paradigm to operation
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7                                                     Security




























                                    Figure 7-1 – Use cases of two types of monitoring data


            Necessary monitoring data is mainly used by CSPs, but could also be used by CSCs. For example, monitoring
            data of cloud physical resources is mainly used by CSPs to maintain the stability of the cloud platform, but
            could also be used by CSCs if the cloud-related physical resources were provided to the customers as a
            service.

            Optional monitoring data is provided as the request of CSCs and also mainly used by CSCs. CSPs could also
            use optional monitoring data to maintain SLAs. For example, CSCs could require the CSCs' data associated
            with the monitoring of their own applications in the cloud. This data is provided by CSP, and used to better
            manage  their  applications  in  the  cloud.  For  example,  a  CSP  could  use  database  as  a  service  (DBaaS)
            monitoring data to maintain the security and stability of database resources and service in cloud.
            The relationship of these two types of monitoring data is illustrated in Figure 7-1.


            8       Monitoring data lifecycle in cloud computing
            This clause describes the lifecycle of monitoring data in cloud computing and clarifies the main differences
            between it and lifecycle of other data in cloud computing.

            8.1     Monitoring data collection

            Monitoring data collection results from the acquisition of monitoring data and the transmission of that data
            to a storage server. Most monitoring data is created by the use of the cloud service by the CSC. Necessary
            monitoring data can also be created by other cloud service monitoring activities.

            8.2     Monitoring data storage

            After creating a monitoring data collection, cloud monitoring data can be stored in the CSC cloud resources
            locally, or in monitoring data storage servers of the CSP.

            8.3     Monitoring data use

            Monitoring data can be used to maintain the performance and security of the cloud platform and the cloud
            service by the CSP; it can also be used to maintain cloud resources performance and security by CSCs.

            8.4     Monitoring data migration
            When cloud resources are migrated, monitoring data can migrate along with the cloud resources.





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