Page 146 - Cloud computing: From paradigm to operation

1 Framework and requirements for cloud computing

Appendix II

Comparison analysis between cloud computing and data storage federation
(This appendix does not form an integral part of this Recommendation.)

Table II.1 shows the mapping between data storage federation ecosystem and the CCRA user view. The DSF
service customer has two sub-roles and these sub-roles are mapped onto the CSC:cloud service user because
two sub-roles have a relationship of using service. The DSF local storage provider and CSP:cloud service
manager and CSP:cloud service operations manager, which provide data storage, are mapped in the
perspective of providing service. However, for the DSF service provider, the additional considerations in data
storage perspective are needed in cloud computing. To federate and provide data storage from DSF local
storages, such as cloud storage and non-cloud storage, they are properly described in CSP as new sub-roles,
activities and involvements.

Table II.1 – Mapping between data storage federation ecosystem and CCRA user view

ITU-T Y.3505 ITU-T Y.3502
(DSF) (Cloud computing) Note

Roles Activities Sub-roles Activities
DSF service • use DSF service CSC:cloud • use cloud • The additional considerations in data
customer service user service storage and data perspective on the
federated storage environment are
needed.
DSF service • provide virtual – – • The additional considerations in data
provider storage pool storage perspective are needed as sub-
• provide single roles and activities in CSP.
virtual volume • The sub-roles and activities support the
• manage storage data storage federation service.
management
metadata
• manage data
storage policy
• manipulate DSF – – • The additional considerations in data
data storage perspective are needed as sub-
• manage data roles and activities in CSP.
operation • The sub-roles and activities support the
metadata data storage federation service.
• manage data
manipulation
policy
DSF local • provide DSF CSP:cloud • provide • Activities and their involvements of the
storage local storage service services e two sub-roles in ITU-T Y.3502 are
provider manager supported to provide cloud data storage.

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