Cloud migration is no longer optional for most businesses. Whether you're moving from on-premise infrastructure to AWS, Azure, or GCP, or migrating between cloud providers, the process is complex and fraught with risk. Without a structured approach, you risk downtime, data loss, security breaches, and cost overruns.

This framework has been refined through hundreds of successful migrations. Follow these 7 steps to move your infrastructure to the cloud safely, efficiently, and with minimal disruption to your business.

Step 1: Assess and Discover

Map your entire IT estate

Before you move anything, you need a complete picture of what you have. This means inventorying every server, application, database, and dependency in your environment.

  • Document all hardware, software, and network configurations
  • Map application dependencies and data flows
  • Identify compliance and security requirements
  • Assess performance baselines and capacity needs
  • Audit licensing and vendor agreements

Step 2: Define Your Migration Strategy

Choose the right approach for each workload

Not everything should be migrated the same way. Use the "6 Rs" framework to categorize each workload:

  • Rehost (Lift & Shift): Move as-is for quick wins
  • Replatform: Make minor optimizations during migration
  • Refactor/Re-architect: Rebuild for cloud-native benefits
  • Repurchase: Move to a SaaS alternative
  • Retire: Decommission what's no longer needed
  • Retain: Keep some workloads on-premise

Step 3: Design the Target Architecture

Plan your cloud environment before you build

Design your cloud architecture with scalability, security, and cost optimization in mind. Define your network topology, identity management, security controls, and monitoring strategy upfront.

Step 4: Validate with a Proof of Concept

Test before you commit

Migrate a non-critical workload first to validate your approach. This identifies issues with your process, tools, and team readiness before you tackle production systems.

Step 5: Execute the Migration

Move in phases, not all at once

Execute migrations in waves, starting with low-risk workloads. Each wave should have a clear rollback plan. Use automated migration tools where possible to reduce errors and speed up the process.

Step 6: Validate and Optimize

Test, monitor, and improve

After each migration wave, validate that everything works as expected. Monitor performance, check security configurations, and optimize costs by right-sizing resources and using reserved instances.

Step 7: Operate and Evolve

Cloud is not a destination, it's a journey

Once migrated, establish ongoing cloud operations practices: cost management, security monitoring, performance optimization, and team upskilling. Continually assess whether workloads can be further optimized or modernized.

Common Pitfalls to Avoid

  • Migrating without understanding dependencies → leads to broken applications
  • Underestimating security and compliance requirements
  • Not planning for cost management → unexpected cloud bills
  • Moving everything as-is without optimizing for cloud
  • Not training your team on cloud operations