Page 160 - Cloud computing: From paradigm to operation

1 Framework and requirements for cloud computing

– History of cloud service control status validation: It is recommended that a CSN: cloud service
broker manage history of validation results as well as required time for completing cloud service
controls.
– Notification of result for request of cloud service control: It is recommended that a CSN: cloud
service broker provide notification of the result of cloud service control to a CSC.
– Detection of failures to meet the terms of the SLA: It is required that a CSN: cloud service broker
detect failures to meet the terms of the SLA through monitoring and to verify the service level.

NOTE 8 – To detect failures to meet the terms of the SLA, monitoring includes one or more measurable
information such as storage speeds, memory capacity and performance, computing speeds, network speeds,
service response time, etc.
NOTE 9 – If a failure to meet the terms of the SLA is found in the integrated cloud service, a CSN: cloud service
broker identifies the cloud service that caused the failure.
– Prevention of service termination during migration: It is recommended that a CSN: cloud service
broker provide postponing of the termination of a running cloud service until the CSN: cloud service
broker verifies ready status of a new service to prevent loss of data during migration process.

8 Security considerations

Security aspects for consideration within the cloud computing environment, are addressed by security
challenges for the CSPs as described in [ITU-T X.1601]. In particular, [ITU-T X.1601] analyses security threats
and challenges and describes security capabilities that could mitigate these threats and meet the security
challenges.

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