The cloud migration strategy happens to be the plan the business enterprise makes to transfer the apps and data from the on-premise architecture to the cloud. It is of utmost importance to validate and verify the efficient options to migrate the apps before they are live. In this regard, it is recommended that a documented and systematic strategy be chosen. In this guide, we are going to throw light on the best AWS migration strategies and how to pick them to accomplish the business needs:
events-trips | insuremycomb | fastsquaring | biddyvocals | LooKeelInks | linuxpatent | riocapitals
Rehosting
Also referred to as Lift and Shift, rehosting is considered to be the leading migration strategy for a business organization. Such a strategy helps to recreate the regular infrastructure components, such as storage, servers, and networks, through the use of cloud equivalents. After the core infrastructure is replicated onto the cloud, the next phase involves migration of the operations and the app data into another cloud environment. It involves redirection of traffic from the on-premises servers to other infrastructure within AWS.
- Choosing the rehosting strategy helps reduce costs faster without optimization.
- Rehosting is the best choice for quick migration to the cloud before optimizing for growing businesses with problems such as outages.
- When there are fewer code changes, rehosting allows the gradual adjustment to the cloud for the potential user and companies. Thus, it helps to avoid major interruption.
Replatform
It is referred to as Lift, Tanker, and Shift. This strategy involves creating certain adjustments to optimize the landscape for the cloud. The app’s core architecture remains the same. It is considered to be the perfect strategy for businesses that are willing to create trust within the cloud and seek benefits, such as enhanced system performance. After choosing such a migration strategy, you can migrate the apps onto the cloud, thereby introducing a certain optimization level to operate the app effectively. By adopting such an approach, it is essential to create certain changes to the app according to the business objectives and the target platform.
Such a platform strategy plays an integral role in ensuring that legacy apps run without sacrificing compliance and security. In addition, it helps to decrease costs and improve performance by transferring to serverless and managed services, migrating virtual machines onto the container, and saying no to licensing expenses.
Re-platform
It is referred to as Lift and Reshape. Thus, you can reap benefits owing to the special AWS cloud capabilities. MySQL database happens to be the instance of such an app migration strategy, after which it should be deployed through Amazon RDS MySQL. Then, the app should be transferred to a fully managed platform, such as AWS Elastic BeanStalk.
Choosing this strategy involves using services that are near the existing infrastructure without changing the code. It does not include any dependency on Hypervisor, OS, and the underlying physical hardware platform. It offers the ideal opportunity to use the latest DB features, OS, and functionality.
Relocate
It has gained popularity as a hypervisor-level lift and shift. It includes transferring the VMware-hosted apps onto the VMWare cloud directly within AWS. Instead of rearchitecting the workloads, the virtual server layer executes them within the on-premises data center and transfers them as-is to build the AWS serverless infrastructure. Before migration, such workloads seek access to different AWS-managed services for hassle-free integration, like AWS DynamoDB for the managed NoSQL databases, Amazon S3 for the scalable storage, Amazon RDS for the relational databases, and AWS Lambda for the serverless computing.
Relocation provides the scope for the workloads to tap within the AWS ecosystem without rearchitecting. Companies that invest in expertise and VMware tools migrate to comply with the disaster recovery needs without interrupting operations. Certain drivers to select the relocation involve faster disaster recovery site establishment and quick data center exit operation.
Re-purchase
It is also known as drop and shop. It includes abandoning the already present software and transferring it onto the cloud-first app. Such migration occurs in two different forms: migration of the software license to AWS from the on-premises server and the total replacement of the latest apps with different SaaS options. It is possible to find such solutions through AWS Service Catalog and AWS Marketplace.
The primary drivers of the repurchasing legacy systems involve migrating from massive capital expenditure to consumption-based pricing through pay-as-you-go SaaS models. In addition, it includes avoiding outdated and hard-to-manage on-premise enterprise software that needs the latest innovation. Furthermore, it involves the use of extensive options within the AWS marketplace for different integrated 3rd party apps, along with CRM security capabilities. Repurchasing consists of transferring the uptime, upgrades, scaling, and maintenance challenges to certain vendor platforms.
People prefer SaaS solutions as they are budget-friendly than custom development. It includes the use of enriched feature vendor platforms set. The vendors allowed backend teams to provide the option to the teams to emphasize innovation.
Selecting the proper AWS migration strategy involves assessing the already present infrastructure, cloud objectives, and business priorities thoroughly. It includes the analysis of the workload characteristics, performance needs, dependencies, and security needs to move onto the migration approach.
