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Framework and requirements for cloud computing 1

Table II.8 – Configurations of clustering processing units – use case
Title A use case of configurations of clustering processing units

Description When a CSC: cloud service user requests a cloud service, a CSP: cloud service operations
manager is responsible for providing computing resources, which can run the cloud service.
In this case, based on the multiple processing units in the physical machine, it is possible for
the CSP: cloud operations manager to configure a clustering system which can distribute the
computational loads among the multiple processing resources.
Therefore, in order to utilize highly integrated computing resources efficiently, the CSP: cloud
operations manager has a responsibility to configure the clustered processing units. The
configuration can be changed dynamically and elastically according to the cloud service's
requirements from the CSC: cloud service user. In other words, according to the required
cloud service's characteristics (e.g., network usage ratio, computing capability, the
proportion of memory intensive computation, an efficiency of distributed computing), the
configuration of the cluster system can vary.
In case of a cloud service based on distributed processing clustering configuration is suitable
because data analysis work load can be divided into several processing units. On the other
hand, when a CSC: cloud service user requests a cloud service, where data communications
occur intensively among processing units, minimum numbers of processing units are
recommended as a clustered resources.
In addition, the networking between each processing unit for clustering can be basically
based on a legacy network such as Ethernet. For a cloud service that is clustering-favourable
but has high proportion of network usage among processing units, a proprietary network for
clustering environment can be provided to eliminate the overhead of network
communications.
Roles/sub-roles CSP: cloud service operations manager, CSC: cloud service user
Figure

Pre-conditions CSC: cloud service user wants to use a cloud service.
(optional)

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