Accelerate Workload Migration and Modernization – SAP-C02 Study Guide
This domain accounts for 20% of the exam — the smallest slice, but a well-defined one. It covers the 7 Rs migration strategies, the AWS tooling to migrate servers, databases, and data, and modernizing toward containers and serverless. The highest-value content is the 7 Rs (know each by a one-line scenario) and matching migration/transfer tools to the situation.
The 7 Rs Migration Strategies
Memorize each with a scenario tell:
| Strategy | Meaning | Tell |
|---|---|---|
| Rehost | Lift and shift, minimal change | "move quickly, optimize later" |
| Replatform | Lift, tinker, and shift (minor optimizations) | "move to managed DB while migrating" |
| Refactor | Re-architect for cloud-native | "decompose into microservices/serverless" |
| Repurchase | Drop and shop (often SaaS) | "replace CRM with a SaaS product" |
| Retire | Decommission | "app is unused" |
| Retain | Keep on-premises for now | "can't move yet (dependencies/compliance)" |
| Relocate | Move infrastructure (e.g., VMware) without app change | "VMware Cloud on AWS, minimal change" |
Migration Tooling
- AWS Migration Hub — central place to discover servers, plan, and track migration progress across tools.
- AWS Application Migration Service (MGN) — automated rehosting: continuously replicates source servers and orchestrates cutover to EC2.
- AWS Database Migration Service (DMS) — migrate databases with continuous replication and minimal downtime; pair with the Schema Conversion Tool (SCT) for heterogeneous engine changes (e.g., Oracle → PostgreSQL).
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