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Introduction
Cloud migration remains one of the most impactful technology initiatives any organization can undertake. Moving to AWS opens doors to greater scalability, improved reliability, reduced infrastructure costs, and access to cutting-edge services. However, migration is complex and requires careful planning. This step-by-step guide walks you through the entire process.
Step 1: Discovery and Assessment
Every successful AWS migration begins with a thorough understanding of your current environment. This involves cataloging all applications, servers, databases, and dependencies in your on-premises infrastructure.
Ozy Solutions uses industry-leading tools like AWS Migration Hub and Application Discovery Service to automate the discovery process and create a comprehensive inventory of your IT estate. This data forms the foundation of your migration strategy.
Step 2: Migration Strategy Selection (The 7 Rs)
Not all workloads should be migrated the same way. AWS defines seven migration strategies known as the 7 Rs:
Rehost (Lift and Shift): Move applications as-is to AWS. Fastest option but fewest cloud benefits.Replatform: Make minor optimizations without changing core architecture.Refactor/Re-architect: Redesign applications to be cloud-native. Most effort but greatest long-term benefit.Repurchase: Move to a SaaS solution.Retire: Decommission applications that are no longer needed.Retain: Keep some applications on-premises for now.Relocate: Move to AWS with minimal changes using VMware Cloud on AWS.
Step 3: Migration Planning
With your strategy defined, the next step is detailed migration planning. This includes defining the migration wave sequence, establishing success criteria, setting up your target AWS environment, configuring networking and security, and defining rollback procedures.
A well-structured migration plan also includes communication plans for stakeholders and end users who will be affected by the changes.
Step 4: Pilot Migration
Before migrating everything, run a pilot migration with a small, non-critical workload. This lets you test your tools, processes, and procedures in a real-world scenario with limited risk.
Lessons learned from the pilot are incorporated into the full migration plan before proceeding. This step is often skipped by organizations in a hurry, leading to avoidable problems during the main migration.
Step 5: Migration Execution
With the pilot complete and the plan refined, execute the full migration in carefully planned waves. Each wave should be followed by thorough testing to validate that applications are working correctly in the new environment.
Ozy Solutions’ AWS migration services provide end-to-end support during this phase, including 24/7 monitoring during cutover windows to catch and resolve any issues immediately.
Step 6: Optimization and Modernization
Once migrated, the real work of optimization begins. Review your architecture against AWS Well-Architected Framework pillars, implement cost optimization measures, and gradually modernize applications to take advantage of cloud-native services.
Visit our blog at Ozy Solutions for ongoing tips on post-migration optimization.
Conclusion
AWS cloud migration is a journey, not a destination. With the right partner and a systematic approach, your organization can achieve a successful migration that delivers lasting business value. Contact Ozy Solutions today to start your migration journey.
