A Complete AWS Migration Checklist

A Complete AWS Migration Checklist

July 29, 2025 / Nirav Shah

Migrating to the cloud is a critical step for modern businesses aiming to scale, innovate, and reduce operational costs. Among the top cloud providers, Amazon Web Services (AWS) stands out for its robustness, scalability, and enterprise-grade features. But such a migration isn’t a simple lift-and-shift—it requires careful planning, execution, and optimisation. That’s where the AWS migration checklist becomes essential. In this guide, we’ll walk you through a complete checklist to ensure a smooth and successful transition to AWS, covering everything from strategy to execution.

Table of Contents:

  • Why Businesses Need to Migrate to AWS
  • What Is an AWS Migration Checklist?
  • The Complete AWS Migration Checklist
  • How AWS Cloud Migration Services Can Help
  • Conclusion

 

Why Businesses Need to Migrate to AWS

 

Cloud migration is no longer just a trend—it’s a business necessity. Whether you’re dealing with legacy infrastructure, experiencing scalability issues, or aiming for cost efficiency, migrating to AWS can solve multiple business challenges. Here’s why AWS is a top choice:

  • Scalability: AWS provides auto-scaling capabilities, allowing you to grow or shrink resources based on demand.
  • Cost-Effectiveness: With pay-as-you-go pricing and reserved instances, businesses can optimise costs significantly.
  • Security & Compliance: AWS meets high security standards and offers compliance with GDPR, ISO, SOC, and more.
  • Global Reach: With availability zones around the world, your business applications remain reliable and accessible.

In short, moving to AWS equips organisations with the agility and resilience needed in today’s digital-first environment.

 

What Is an AWS Migration Checklist?

 

An AWS migration checklist is a detailed roadmap that guides organisations through the stages of moving their applications, databases, and infrastructure from on-premises or other cloud environments to AWS. It helps ensure that:

  • Nothing critical is overlooked
  • Risks are identified and mitigated
  • The migration aligns with business and technical objectives

This checklist incorporates best practices from AWS’s Well-Architected Framework, industry standards, and hands-on experience from successful migrations.

 

The Complete AWS Migration Checklist

 

Here is the most comprehensive AWS cloud migration checklist, combining best practices and items used by leading cloud consulting firms and migration experts:

1. Define Your AWS Migration Strategy

Before doing anything, you need a clear AWS migration strategy. This should include:

  • Business Drivers: What are your primary goals? (e.g., scalability, cost reduction, innovation)
  • Application Inventory: Identify all apps, workloads, and databases to be migrated.
  • Migration Approach: Choose between rehosting (lift-and-shift), replatforming, refactoring, retiring, or retaining.
  • Team Readiness: Assess cloud knowledge and assign roles (Cloud Architect, Project Manager, DevOps, etc.)

Tip: Use AWS Migration Readiness Assessment (MRA) tools to evaluate your organisation’s preparedness.

2. Assess Current Environment

Understanding your existing infrastructure is vital for a smooth transition.

  • Infrastructure Audit: List all servers, storage systems, databases, and network components.
  • Application Dependencies: Map interdependencies between applications and services.
  • Compliance Requirements: Identify regulatory standards to comply with in the cloud.

3. Cost and Performance Analysis

A detailed TCO (Total Cost of Ownership) analysis will help in budgeting and choosing the right resources.

  • Use AWS Pricing Calculator
  • Estimate the costs of compute, storage, network, and managed services
  • Evaluate savings plans and reserved instances for long-term workloads

4. Select the Right AWS Services

Based on the findings above, select AWS services that align with your goals:

  • Compute: EC2, Lambda, ECS, EKS
  • Storage: S3, EBS, Glacier
  • Databases: RDS, DynamoDB, Aurora
  • Security: IAM, KMS, AWS Shield
  • Monitoring: CloudWatch, X-Ray

5. Plan Security and Compliance

Security must be integrated from the ground up.

  • Set up Identity and Access Management (IAM)
  • Implement VPCs, subnets, and security groups
  • Encrypt data at rest and in transit
  • Create CloudTrail logs for auditing
  • Configure firewalls and intrusion detection systems

6. Data Migration Preparation

Moving data is a critical step, and downtime must be minimised.

  • Choose the method
    • Online: AWS Database Migration Service (DMS), AWS DataSync
    • Offline: AWS Snowball for large datasets
  • Schedule data syncs during off-peak hours
  • Verify data consistency and integrity

7. Application Migration

Move applications in a phased and controlled manner.

  • Rehost: Move workloads without code changes
  • Replatform: Optimise for AWS without major redesign
  • Refactor: Re-architect for cloud-native environments
  • Perform test migrations before going live

8. Testing and Validation

Rigorous testing ensures functionality, performance, and security post-migration.

  • Unit and integration testing
  • Load and performance testing using AWS CloudWatch and X-Ray
  • Failover and disaster recovery testing
  • Validate application behaviour and user experience

9. Optimisation Post-Migration

Once live, your work isn’t done. The cloud enables continuous optimisation.

  • Right-size instances and storage
  • Use auto-scaling and elastic load balancing
  • Enable cost monitoring with AWS Cost Explorer
  • Review and fine-tune security policies

10. Monitoring and Maintenance

Long-term success depends on how you monitor and manage your AWS environment.

  • Set up CloudWatch alerts and dashboards
  • Use AWS Config for configuration monitoring
  • Automate updates and backups
  • Document policies and configurations for future audits

 

How AWS Cloud Migration Services Can Help

 

Migrating to AWS can be complex, especially for enterprises with legacy infrastructure. That’s where AWS cloud migration services play a crucial role. These services streamline the migration process and reduce risks associated with cloud adoption. Key benefits include:

  • Automated Assessment: Identify workloads and get cost estimations using AWS Migration Hub.
  • Managed Services: AWS DMS and Server Migration Service (SMS) simplify data and server transfer.
  • Expert Guidance: Access to AWS-certified professionals who can design a scalable and secure cloud architecture.
  • Security Integration: Pre-configured security tools and compliance best practices are embedded in the migration process.
  • Training & Support: AWS offers training modules and 24/7 support, helping teams become cloud-ready quickly.

Using AWS cloud migration services ensures that your AWS migration strategy is backed by proven tools, reducing the time and complexity of the transition.

 

Conclusion

 

A successful cloud transition begins with a robust AWS migration checklist. From assessing your existing environment to implementing robust monitoring post-migration, each step is vital. Whether you’re just beginning your cloud journey or ready to scale operations on AWS, following this comprehensive guide will help ensure a smooth and efficient cloud migration experience.

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