The 6 R’s of Cloud Migration Strategy

Why should your Organization have a Cloud Migration Strategy?

Moving your data and applications to the cloud can help you save money and improve collaboration. It also provides the added benefit of disaster management and supports business continuity. The migration process can be daunting and costly if done inappropriately or in a way that does not support company goals or the product’s architecture. Companies must take a holistic approach to determine which applications and services they want to migrate and how the migration will impact licensing, services, and productivity across the organization.

How to Develop a Cloud Migration Strategy?

Developing a migration strategy is a time-consuming process. Still, the planning stage frequently determines what’s possible in the migration environment, what interdependencies are involved with the migrating elements, and what will and won’t migrate. Gartner published the “5 Rs” model, which outlined all the available options for migrating an application to the cloud. Amazon adopted this strategy and extended it to include 6 Rs: Retiring, Retaining, Rehosting, Replatforming, Refactoring, and Re-architecting are known as the “6Rs of migration.”

The 6 R’s of Cloud Migration Strategy

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Rehosting: To a public cloud infrastructure

Lift and shift is another term for rehosting. It involves moving servers or apps from their current hosting environment, usually on-premises, migrating them to public cloud infrastructure, and rehosting them. Lift-and-shift is a popular method for companies just starting on their migration journey.

  • Rehosting is the cheapest and easiest approach to migrating to the cloud because you don’t have to alter anything within the application.
  • This approach can assist you in shifting applications into the cloud if you have a short time limit, and it still allows you to reformat the app later.
  • In rehosting, you won’t gain all of the benefits of cloud migration, such as automated recovery or monitoring of systems, because you won’t be making any modifications to the application.
  • Although rehosting is an easy procedure, it may fail due to complicated application dependencies.

Replatform: Your Cloud Architeture

Replatform is also known as the ‘lift, tinker, and shift’ method. Replatforming allows you to make configuration changes to your apps more cloud-friendly without changing their essential architecture. Developers often use this method to change how apps interface with databases so that they can run on managed platforms like Google CloudSQL or Amazon RDS.

  • With a re-platform, you are utilizing specialized cloud services. You can get many cloud migration benefits without reworking or significant code changes if you do it this way.
  • Because the migration procedure is usually automated and quick, there are no risks.
  • There is no dependency on the OS, hypervisor, or underlying physical hardware platform.
  • Because we make updates to the software’s codebase, you’ll need to test and retest each change before migrating it to the cloud. This is both costly and time-consuming.
  • This method requires a little more planning and coordination. Your team will also need to become familiar with how new specialized cloud services work.

Refactor: Your application to make it Cloud-Native

The refactor or re-architect strategy needs a complete redesign of the application to make it cloud-native. Microservices architecture, serverless containers, function-as-a-service, and load balancers are examples of cloud-native technologies that can be fully realized with this technique. For example, you can rework assets when you shift your digital assets from an on-premise monolithic architecture to a serverless architecture on the cloud. These refactored applications are scalable, adaptable, and efficient, with a long-term return on investment.

  • Cloud refactoring will provide you with full cloud benefits, and this strategy is long-term and cost-effective.
  • Cloud-native apps are more scalable and responsive than traditional on-premises apps.
  • There is no need to maintain infrastructure or servers.
  • Refactoring consumes a significant amount of time and resources. As a result, the initial costs will be higher.

Repurchase: Your On-premise Software

Repurchase, commonly known as the “drop and shop” approach, replaces on-premise software with cloud-native vendor-packaged software. It typically involves switching to a SaaS (Software as a Service) application with similar functionality. It sometimes implies a licensing change where you remove your old on-premise license and begin a new license agreement with the cloud provider for their service. The newer, enhanced cloud version provides better value with increased efficiency, lower app storage, and lower maintenance expenses.

  • You won’t need to change the software’s code because the newest version is already configured for the cloud.
  • Compared to refactoring, this method is less expensive and a lot quicker.
  • If your company uses custom-built software, this strategy isn’t an option.

Retire: Your Applications from IT Portfolio

The ‘retire’ strategy involves removing applications from your IT portfolio that are no longer needed or actively used. If it is determined that a software product is not worth transferring to the cloud, it can be removed or scaled back. It allows you to examine all of your apps regarding their functions, dependencies, and business costs. As there is no migration, it is a somewhat passive technique. According to AWS’s Stephen Orban, on average, upto 10% of an enterprise’s IT portfolio is no longer useful after shifting to the cloud and can be turned off.

  • You will free up some extra space on your onsite servers, and also this method helps save money spent on infrastructure.
  • If you want to keep the software on your on-premises servers, you’ll have to create APIs for them, which means additional effort. Such on-premise apps will then be able to communicate with cloud-based apps without being interrupted through those APIs.
  • The level of complexity determines the cost and time factors for this method.

Retain: The Essential Applications of your Digital Assets

Retaining, also known as re-visiting, is analyzing those essential applications/portions of your digital assets that require major reworking before being migrated to the cloud. You may eventually discover that some applications are better suited to on-premise deployments. In other cases, apps are retained because of latency requirements, compliance or regulatory limits, or simply because they are not cost-effective.

Cloud Migration Strategy from Payoda Technologies

Remember that every cloud migration process is different when you deliberate which of the “6 Rs” is best for your company’s migration needs. The types mentioned earlier of cloud migration are not ready-made solutions for every organization. These selections should be used to construct the final strategy, which will suit your company’s specific needs. While planning your migration strategy, consider costs, security, scalability requirements, timelines, skills, and business goals. A successful migration requires the right guidance and diligent planning.



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Payoda Technology Inc

Payoda Technology Inc

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