Cloud Migration

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From reducing IT costs to accelerating innovation, there are many compelling reasons to embark on a cloud migration journey, i.e. Reducing IT costs, Increasing business agility, improving security, enabling digital transformation, accelerating growth, and leveraging new technologies

However, making the transition is not easy without a well-developed plan and cloud expertise. While each application has it's own migrations strategy and plan, it's on the IT team to identify the constraints, and challenges and decide what strategy to a​

 

​It's essential to know the 6R's of cloud migration strategy while you think of cloud migration. Each R has it's own beefits and drop backs, it's important to assess your IT landscape and identify which one suits your needs with minimum risk.

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• Rehosting: This strategy, commonly known as lift-and-shift, is a widely chosen strategy due to the relatively low migration effort. The virtual machine and the application that runs in are simply copied as-is to a cloud provider. The most important benefit of this strategy is migration speed because no architectural refactoring needs to be done.

• Replatforming: In contrast to Rehosting, Replatforming leads to cloud optimization due to some cloud platform adoption, while keeping the application core architecture the same. Replatforming requires deeper insights into the application or the virtual machines to be migrated than Rehosting but does not lead to the complexity and effort typically associated with Rearchitecting

• Re-factoring: For highly critical applications that require cloud-native characteristics or applications that need thorough modernization due to outdatedness or performance issues a higher migration effort is typically profitable and hence should be part of cloud considerations. Refactoring is also called Rebuild.

• Retire: The Retire strategy means that an application is explicitly phased out. This makes sense when the business capabilities this application provides are not needed anymore or are offered redundantly.

• Retain: Retain (or Revisit) means that you do not migrate the application at this point since you are lacking important information or are hindered by other factors.