Page 111 - Cloud computing: From paradigm to operation

Framework and requirements for cloud computing 1

As is the case with the cloud service customer-cloud service provider relationship there are two functional
components to the relationship between two cloud service providers:
• the use of secondary provider cloud services by a primary provider;
• the use of secondary provider's business and administration capabilities by the primary provider's
CSP:cloud service operations manager and CSP:cloud service manager to establish and control the
use of the secondary provider's cloud services.

For the secondary provider, the primary provider assumes the role of a cloud service customer. Services of
the secondary cloud service provider are offered to and used by customers of the primary cloud service
provider. The resulting linkage between the secondary cloud service provider and the cloud service
customer of the primary provider requires specific consideration of issues such as security, protection of PII,
and data ownership.

It is essential that the primary provider ensures that the SLA offered by the secondary provider's services is
suitable for the requirements of the primary provider's services – and that any breaches of the SLA are
managed appropriately.
There are three interfaces involved in the provider–peer provider relationship – the administration interface,
the business interface and the service interface(s), which broadly provide the same capabilities as the
equivalent interfaces in the cloud service customer–cloud service provider relationship. The way in which
the administration interface is used is shown in Figure A.4 and the way in which the service interface is used
is shown in Figure A.5 and the way in which the business interface is used is shown in Figure A.6.

Figure A.4 – Provider–peer provider relationship for administrator activity

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