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Difficulty: EasyUnderstand the benefits of and strategies for migration to the AWS Cloud

A manufacturing enterprise, StellarFab, is planning to migrate its application portfolio to the AWS Cloud. The migration team is evaluating two specific workloads:

1. A legacy Enterprise Resource Planning (ERP) application that they want to completely replace with a cloud-based Software as a Service (SaaS) platform.
2. A database-backed inventory application that they want to migrate to AWS. To reduce operational overhead, they plan to move the database to Amazon RDS without modifying the application's core code.

Which two migration strategies are being described for these workloads?

  1. RepurchasingAnswer
  2. ReplatformingAnswer
  3. C
    Rehosting
  4. D
    Refactoring
  5. E
    Retaining

Answer

Repurchasing and Replatforming are the two correct migration strategies.
The manufacturing company is using Repurchasing for the ERP application by replacing it with a cloud-based SaaS platform. They are using Replatforming for the database-backed inventory application by moving it to Amazon RDS to reduce operational overhead without modifying the application code.

Step-by-Step Solution

1
Analyze the first workload requirement: The legacy Enterprise Resource Planning (ERP) application is being replaced by a cloud-based Software as a Service (SaaS) platform.
Identify that replacing an existing application with a different product (like SaaS) corresponds to the Repurchasing strategy.
Repurchasing is defined as moving to a different product, often a SaaS platform.
2
Analyze the second workload requirement: The database-backed inventory application is being moved to Amazon RDS to reduce operational overhead without modifying the core code.
Identify that migrating a database to a managed service like Amazon RDS without modifying the application code is a Replatforming strategy.
Replatforming (lift-tinker-and-shift) involves making minor optimization adjustments, such as using managed services, without changing the application's underlying architecture.

Key Concept

Identifying AWS migration strategies (6 Rs)
Estimated Time:1m 0s
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Topics

Understand the benefits of and strategies for migration to the AWS Cloud

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