The 5 R’s of Cloud Migration Strategy
Boarding the journey for a successful cloud migration has immense benefits associated. Scalability, cost-effectiveness and better performance application to name a few! Cloud services provide the requisite backbone for seamless accessibility and support. Hence, it is absolutely natural to be inclined towards migrating to this platform.
But, this does not cease from the roadblocks, ensuring restlessness. Abrupt costs, security hacks, unforeseen rework of application might resist you from pursuing the same.
Nevertheless, the ace consulting companies have all of this sorted, with their cloud solutions experts. You can have a chat with them, drop an email and get your queries answered. The consulting firms like SA Technologies Inc pave a smooth path owing to their transcendent cloud consulting services.
A well-thought-out migration strategy with an ability to provide effective cloud solutions is the need of the hour for your organization.
In 2011, Gartner identified 5 migration strategies for the same, which inculcate: -
- Rehost
2. Refactor
3. Revise
4. Rebuild
5. Replace
Rehost
Rehost is redeployment of the application to a disparate hardware environment. It alters the infrastructure configuration of the application. Automated or manual tools can be utilized for this purpose.
If you have an application that is already executing on the cloud, this procedure becomes further seamless.
Disadvantage: undoubtedly, when the rehost process is pursued without altering the architecture, it yields faster result of cloud migration solution. But, then you cannot overlook the risk associated with the infrastructure owing to its consequences on the scalability.
Refactor
Cloud provides the infrastructure for running of your application in this procedure. It is an amalgamation of familiarity with uniqueness. It deploys PaaS. It implies, the developers are in the position to reuse languages, containers and framework that they have invested in.
Disadvantage: framework lock-in, risks and missed aptitude includes the disadvantage of this strategy.
Revise-Revise inculcates dual steps. The primary step involves modification of existing code, which in turn provides support to the requisites of legacy modernization. The next step is rehosting or refactoring of the options to mobilize to the cloud. It aids in allowing the organization and optimization of the cloud application to favor from the cloud attributes of the infrastructure of the provider.
Disadvantage: this process will require higher expenses and is time consuming.
Rebuild
Discarding the code for an existing application, re-architecting of the application and thus rebuilding the solution of PaaS. Definitely, this ensures loss of the cognition of existing codes and frameworks. However, it also assures feasibility to the unique attributes in the provider’s platform.
Disadvantage- Lock-in is the ace disadvantage.
Replace
utilization of commercial software delivered and disposing of an existing application is pursued in this procedure. Investment in the mobilization of a development team is not required.
Disadvantage- inconsistency in data syntactic, lock-in and issues in data accessibility are expected.
As is evident from the above strategies, you need to come to the decision after careful analysis. It is because you are not deciding just on migration, but on optimization as well.
Consulting firms in the USA are the answer to all your queries.
