The Seven-Step Model Of Migration Into A Cloud | Seven Step Migration | Cloud Computing

The Seven-Step Model Of Migration Into A Cloud | Seven Step Migration | Cloud Computing

The promise of cloud computing has raised the IT expectations of small and medium enterprises beyond measure. Large companies are deeply debating it. The key issues associated with decision makers, architects, and systems managers in trying to understand and increase use of cloud computing for their IT needs.
Some questions arises that are , when and how to migrate one’s application into a cloud; what part or component of the IT application to migrate into a cloud and what not to migrate into a cloud; what kind of customers really benefit from migrating their IT into the cloud; and so on. We describe the key factors underlying each of the above questions and share a Seven-Step Model of Migration into the Cloud. Typically migration initiatives into the cloud are implemented in phases or in stages.

• Assessment:-

The first step of the iterative process of the seven-step model of migration is basically at the assessment level. These assessments are about the cost of migration as well as about the ROI that can be achieved in the case of production version.

• Isolating:-

The next process step is in isolating all systemic and environmental dependencies of the enterprise application components within the captive data center. This, in turn, yields a picture of the level of complexity of the migration.

• Mapping:-

After isolation is complete, one then goes about generating the mapping constructs between what shall possibly remain in the local captive data center and what goes onto the cloud.

• Re-Architect:-

Perhaps a substantial part of the enterprise application needs to be re-architected, redesigned, and re-implemented on the cloud. This gets in just about the functionality of the original enterprise application. Due to this migration, it is possible perhaps that some functionality is lost.

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• Augment:-

In the next process step we leverage the internal features of the cloud computing service to augment our enterprise application in its own small ways.

• Validate:-

Having done the augmentation, we validate and test the new form of the enterprise application with an extensive test suite that comprises testing the components of the enterprise application on the cloud as well. These test results could be positive or mixed.

• Optimization:-

In the latter case, we iterate and optimize as appropriate. After several such optimizing iterations, the migration is deemed successful
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Migration Risks:-

The biggest challenge to any cloud migration project is how effectively the migration risks are identified and mitigated. In the Seven-Step Model of Migration into the Cloud, the process step of testing and validating includes efforts to identify the key migration risks. Migration risks for migrating into the cloud fall under two broad categories:

• the general migration risks
• the security-related migration risks.

In general migration risk we address several issues including performance monitoring and tuning. On the security front Issues include security at various levels of the enterprise application as applicable on the cloud in addition to issues of trust and issues of privacy.

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