Understanding The 6Rs Of Any Cloud Migration Model

2022-05-27 by Rishabh Sinha

Organizations have significantly gained a tremendous amount of traction towards Cloud, owing to the numerous factors that it offers. An online stat has estimated that over 80% of companies have moved their workloads to the Cloud. Migration of functions to the Cloud helps enhance the workspace efficiency and boosts the security of these functionalities. These enterprise-grade functionalities remain secured via multiple layers of security in the Cloud.

However, some organizations that are not yet willing to migrate to Cloud Hosting often find the task of legacy system transitioning challenging. When we talk about the industries, in particular, most industries have been the early adopters of this technology, but there are still those who apprehend migration to Cloud.

In order for the enterprises and industries to gain the maximum ROI through Cloud Computing, they must understand the services that are available and accessible to them. When industries run their services on someone else's system, it is usually termed the "Lift and Shift Migration." Or, in layman's terms, it may be referred to as lifting the on-premises applications & data and replicating it in a much more secure and scalable Cloud environment. Enterprises have saved substantial amounts of their computing costs and increased their product-first innovation due to their workforce with a Cloud-first mentality. It takes years for organizations to get this level of Cloud maturity, and hence they are looking to seek values through iterative migration techniques.

The 6Rs of Cloud Migration

The industry's concept of "The 6Rs of Cloud Migration" talks about different approaches when users consider legacy applications and their migration to Cloud Computing. This can be extremely beneficial when deciding on each application since most organizations don't tend to migrate all their applications in one go.

The following is the elaboration of these 6Rs related to any Cloud Migration-

  1. Retire: In this case, enterprises become more agile & the applications need to be replaced with new ones. The enterprises need to identify their business environment's resources, such as products, services, or solutions capable enough to undergo migration. Additionally, all the users associated with these migration resources must also be clearly understood. Proper determination of retiring resources becomes crucial and helps in saving costs related to these Cloud migration components

  2. Retain: Some business components might not require any migration and could be used as it is. A CIO or CTO usually considers various whenever he retains any resource, possibly thinking that keeping the resource on-premises gives them a sense of comfort or even it can be possibly due to certain compliance-related concerns.

  3. Rehost: The rehost migration strategy is also referred to as "Lift and Shift Migration." It is a faster migration technique wherein the applications and data are moved to the Cloud with minimal effort. Rehosting migration is a popular technique for the initial stages of migration since existing and virtual servers are moved on to a Cloud/IaaS solution. The IaaS model of Cloud Computing is responsible for hosting the infrastructure similarly to on-site components. The rehosting migration strategy might involve rearchitecting in the future post-deployment of all Cloud-based operations

  4. Replatform: In the Replatform migration strategy, the "Lift and Shift Migration" gets slightly modified. Here the core of applications' core is mimicked somewhat by means of virtual machines in order to make the legacy systems compatible with IaaS/Cloud technologies to manage operations

  5. Repurchase: This form of Cloud migration strategy is also sometimes referred to as the "drop and shop." It refers to moving onto other products utilizing ending existing licenses and repurposing services over newer platforms and services. This form of Cloud migration strategy can be a faster approach to accessing Cloud-based SaaS tailored to meet business requirements through a Cloud provider

  6. Refactor and Rearchitect: Refactoring and rearchitecting of applications are mostly driven by an enterprise's need to add features or gain scalability benefits from Cloud. This migration technique boosts agility and drives business continuity along with an overall enhancement of productivity and collaboration. Out of all the strategies mentioned above, this strategy is often considered to be the most expensive one and is usually performed post completion of the initial migration through one of the other migration strategies

Wrapping Up:

With the technology domain constantly evolving, it has become inevitably necessary for enterprises and other industries to migrate to Cloud-based technologies. These Cloud technologies play a crucial role in achieving business goals and needs at a relatively lower cost than on-premises hosting. Migration to Cloud often comes with various benefits that complement the security of businesses' data and applications against online threat vectors and natural disasters. Despite different migration techniques, it all lies with the enterprises to decide which form of Cloud migration is most suitable for them, as per their business model and needs.

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Rishabh Sinha

Rishabh Sinha


Rishabh Sinha is passionate about writing articles on the latest technological trends such as Big Data, IoT, Cloud, AI, ML, Cyber Security. In his leisure time, he loves to read about technology and the latest trends that are changing human and technology ecosystems.

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