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| Deciphering the 7 Rs of AWS (30th Sep 23 at 2:10am UTC)
Deciphering the 7 Rs of AWS | | Migrating to the cloud is a transformative journey for businesses seeking scalability, flexibility, and cost-efficiency. Amazon Web Services (AWS) offers a range of strategies and tools to facilitate this transition. One of the fundamental concepts in cloud migration is the "7 Rs" framework. In this blog post, we'll explore the 7 Rs of AWS and how they can guide your migration strategy.
1. Rehost (Lift and Shift):
Rehosting, often referred to as "lift and shift," is the simplest migration strategy. It involves moving your existing applications and workloads from on-premises or another cloud provider to AWS with minimal modifications. This approach is fast and low-risk but may not fully leverage AWS's capabilities.
2. Replatform (Lift, Tinker, and Shift):
Replatforming involves making minor optimizations to your applications during migration. You retain the core functionality while taking advantage of some AWS services. This approach strikes a balance between speed and optimization, making it suitable for many scenarios.
3. Repurchase (Drop and Shop):
Repurchasing is about replacing your existing software with cloud-native alternatives. This often includes adopting Software as a Service (SaaS) solutions, which can reduce maintenance overhead and improve scalability.
4. Refactor (Re-architect):
Refactoring is a more extensive migration strategy, involving significant modifications to your applications to align them with cloud-native principles. This approach can yield the highest performance and cost benefits but may require more time and resources.
5. Rearchitect (Rebuild):
Rearchitecting takes refactoring to the next level. In this strategy, you redesign and rebuild your applications using cloud-native services and microservices architecture. It maximizes cloud-native benefits but is the most resource-intensive option.
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6. Retain (Keep in Place):
Sometimes, not everything needs to move to the cloud. The "retain" strategy involves keeping certain applications or workloads in their current environment while migrating others. This is often chosen for legacy or specialized systems.
7. Retirement:
The "retirement" strategy involves decommissioning or discontinuing applications or workloads that are no longer needed. This can simplify your IT environment and reduce costs.
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