Cloud Migration Strategy | 6Rs | Cloud Computing
Автор: Learning Knack
Загружено: 2021-04-22
Просмотров: 5580
#AzureCloud #AWSCloud #CouldComputing #Cloud
Cloud Migration Strategy | 6Rs | Cloud Computing
In today’s world every organization wants to harness the potential of cloud computing in order to gain competitive advantages over their peers and competitors.
Migrating their existing applications and infrastructure from on-premises environment to cloud environment would be a daunting and problematic task, if a though through well-designed plan is not created for cloud migration activities.
To create a well-designed plan, you need to first understand the prescribed cloud migration strategies.
In 2011 Gartner analyst Richard Watson outlined 5 R’s Strategies for Cloud migration.
Rehost
Refactor
Revise
Rebuild
Replace
In 2016 Steven Orban of AWS renamed some and added a new one. That makes them 6 R’s. These 6 R’s helps you categorizing the cloud migration strategy of your applications and bringing structure into your decision processes.
6 R's Migration Strategies:
Rehost (Lift & Shift)
Harnessing advanced cloud capabilities.
Testing the water
Architecture of the application is not supported in cloud (monolithic code)
Lifting your stack and shifting it from on-premises hosting to the cloud
Re-platform
A variation on the lift and shift.
Making a few further adjustments into your application to optimize for the cloud.
Core architecture of applications stays the same
Repurchase
moving your applications to a new, cloud-native product, most commonly a SaaS platform.
Move from perpetual licenses to a software-as-a-service model
Example: Migrate your customer relationship management (CRM) system to Salesforce.com
Refactor
Want to fully utilize the power of Cloud.
Re-architecting is needed for application.
New Application in planning for development
Retain
Compliance Sensitive (need to store data on-premises only)
Application requires major refactoring.
External / internal dependencies of application not accessible from Cloud environment.
Application is architecturally not fit for Cloud
No Business justification to migrate
Retire
Application no longer useful or reaching end of life
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