Step-by-Step guide for AWS Migration from On-Premises to the Cloud
9 min read
AWS Migration Services
Seamless Cloud Transitions with Zero Surprises
Transform your business with enterprise-grade AWS migration services that minimize disruption and maximize efficiency. Our proven methodology has helped organizations of all sizes successfully transition to the cloud while reducing costs, improving performance, and accelerating innovation.
Why Choose Our AWS Migration Services?
Proven Track Record
Our certified AWS migration specialists have successfully migrated thousands of workloads across diverse industries including healthcare, finance, retail, manufacturing, and technology. We leverage AWS best practices and our proprietary migration frameworks to ensure your transition is smooth, secure, and successful.
Zero-Surprise Guarantee
Through comprehensive assessment and meticulous planning, we identify and mitigate risks before they become issues. Our wave-based migration approach ensures controlled, predictable outcomes with clear milestones and transparent communication throughout the process.
Cost Optimization from Day One
We don't just move your infrastructure—we optimize it. Our migration includes rightsizing recommendations, reserved capacity planning, and architectural improvements that typically deliver 30-50% cost savings compared to on-premises infrastructure.
Business Continuity Assured
Your business never stops, and neither should your migration. We employ advanced techniques, including blue-green deployments, real-time data replication, and comprehensive rollback procedures, to ensure your operations continue uninterrupted.
Our Comprehensive Migration Methodology
Phase 1: Assessment & Discovery
Comprehensive Infrastructure Analysis
Our migration journey begins with a thorough understanding of your current environment. We utilize advanced discovery tools and methodologies to create a complete inventory of your IT landscape.
What We Analyze:
Application Portfolio: All applications, their interdependencies, and business criticality
Infrastructure Inventory: Servers, storage systems, databases, networking components
Performance Metrics: CPU utilization, memory consumption, storage I/O, network traffic patterns
Licensing: Current software licenses and their cloud compatibility
Compliance Requirements: Regulatory obligations (HIPAA, PCI DSS, SOC 2, GDPR, etc.)
Business Requirements: Performance expectations, uptime requirements, disaster recovery needs
Application Discovery Process:
We employ multiple discovery methods to ensure complete visibility:
Automated Discovery Tools: AWS Application Discovery Service, CloudEndure Migration Assessment, and third-party discovery tools scan your environment
Agent-Based Discovery: Lightweight agents collect detailed performance data over 1-2 weeks
Agentless Discovery: Network-based discovery for systems where agents cannot be installed
Manual Documentation Review: Analysis of existing documentation, architecture diagrams, and runbooks
Stakeholder Interviews: Sessions with application owners, developers, and operations teams
Dependency Mapping:
Understanding application dependencies is critical for successful migration. We map:
Application-to-application communication patterns
Database connections and data flows
External API integrations
Authentication and authorization dependencies
Shared storage and file system relationships
Network dependencies and firewall rules
Total Cost of Ownership (TCO) Analysis:
We provide detailed financial modeling comparing your current costs to projected AWS costs:
Current State Costs: Hardware, software licenses, maintenance, facilities, power, cooling, staff
AWS Cloud Costs: Compute, storage, data transfer, managed services
Migration Costs: Professional services, data transfer, temporary duplicate environments
3-Year and 5-Year Projections: Including growth assumptions and optimization opportunities
ROI Timeline: When you'll break even and start realizing savings
Our TCO analysis typically shows 35-45% cost reduction over three years, with additional soft benefits like increased agility and reduced time-to-market for new features.
Migration Readiness Assessment:
We evaluate your organization's readiness across six dimensions:
Business: Executive sponsorship, change management, business case
People: Skills, training needs, organizational structure
Process: ITSM processes, DevOps maturity, automation capabilities
Platform: Application architecture, technical debt, cloud readiness
Operations: Monitoring, incident management, support processes
Security: Security posture, compliance requirements, risk management
Deliverables:
Detailed infrastructure inventory and application catalog
Comprehensive dependency maps and application groupings
TCO analysis with 3-year cost projections
Migration readiness assessment report
Prioritized migration wave plan
Risk register and mitigation strategies
Executive summary and business case
Phase 2: Migration Strategy & Planning
The 7 Rs of Migration
Based on our assessment, we recommend the optimal migration strategy for each application:
1. Rehost (Lift-and-Shift)
What: Move applications to AWS with minimal changes
Best For: Applications that need quick migration, legacy systems with stable performance
Timeline: Fastest option (days to weeks per application)
Benefit: Quick wins, immediate infrastructure cost savings
Tools: AWS Application Migration Service, CloudEndure, VM Import/Export
2. Replatform (Lift-Tinker-and-Shift)
What: Make minimal cloud optimizations without changing core architecture
Best For: Applications that can benefit from managed services (e.g., move database to RDS)
Timeline: Moderate (weeks to months)
Benefit: Performance improvements and reduced operational overhead
Example: Move from self-managed database to Amazon RDS or Aurora
3. Repurchase (Drop-and-Shop)
What: Switch to a different product, typically SaaS
Best For: Legacy applications with modern SaaS alternatives
Timeline: Varies based on data migration and integration
Benefit: Latest features, reduced maintenance, automatic updates
Example: Move from on-premises email server to Microsoft 365 or Google Workspace
4. Refactor/Re-architect
What: Redesign applications to be cloud-native
Best For: Applications requiring significant performance improvements or new capabilities
Timeline: Longest option (months)
Benefit: Maximum cloud benefits including elasticity, scalability, and modern features
Example: Convert monolithic application to microservices using containers and serverless
5. Relocate
What: Move servers between AWS accounts or regions
Best For: Already-cloud infrastructure needing reorganization
Timeline: Quick (hours to days)
Benefit: Improved organization and governance
6. Retain (Revisit)
What: Keep applications in current environment for now
Best For: Recently upgraded systems, applications not ready for migration
Timeline: Not applicable
Benefit: Focus resources on higher-priority migrations
7. Retire
What: Decommission applications no longer needed
Best For: Redundant, unused, or superseded applications
Timeline: Decommission process
Benefit: Reduced migration scope and ongoing operational costs
Wave-Based Migration Planning
We organize your migration into logical waves that minimize risk and maximize learning:
Wave 0: Pilot/Proof of Concept
Purpose: Validate approach and build confidence
Applications: 1-3 low-risk, non-critical applications
Duration: 2-4 weeks
Outcome: Proven processes, trained team, lessons learned
Wave 1: Quick Wins
Purpose: Demonstrate value and build momentum
Applications: 5-10 low-complexity, independent applications
Duration: 4-8 weeks
Outcome: Early cost savings, organizational confidence
Wave 2+: Scaled Migration
Purpose: Migrate bulk of portfolio
Applications: Grouped by dependencies and business unit
Duration: 3-9 months depending on portfolio size
Outcome: Majority of infrastructure migrated
Final Wave: Complex Systems
Purpose: Migrate most critical and complex applications
Applications: Core business systems, highly interdependent applications
Duration: 2-6 months
Outcome: Complete migration
Landing Zone Design
Before migrating applications, we establish your AWS foundation:
Multi-Account Strategy:
Management account for billing and organization policies
Security account for centralized security services
Shared services account for common infrastructure
Separate accounts for development, staging, and production
Individual accounts for business units or projects as needed
Network Architecture:
Virtual Private Cloud (VPC) design with proper subnet segmentation
Direct Connect or VPN connectivity to on-premises systems
Transit Gateway for multi-VPC and hybrid connectivity
Route 53 for DNS management
CloudFront for content delivery
Security groups and network ACLs for defense in depth
Security & Compliance Framework:
Identity and Access Management (IAM) with least privilege
AWS Organizations with Service Control Policies (SCPs)
AWS Config for compliance monitoring
CloudTrail for audit logging
GuardDuty for threat detection
Security Hub for centralized security findings
Encryption at rest and in transit
Key Management Service (KMS) for encryption key management
Operational Foundation:
CloudWatch for monitoring and alerting
Systems Manager for patch management and automation
AWS Backup for centralized backup management
CloudFormation or Terraform for infrastructure as code
CodePipeline for CI/CD
Cost allocation tags and budgets
Guardrails Implementation:
Guardrails are automated governance policies that ensure compliance and security:
Preventive Guardrails: Block actions that violate policies
Prevent public S3 bucket creation
Require encryption for all storage
Restrict resources to approved regions
Enforce MFA for privileged accounts
Block unauthorized instance types
Detective Guardrails: Identify non-compliant resources
Detect unencrypted databases
Identify overly permissive security groups
Flag resources without proper tagging
Monitor unusual access patterns
Track configuration changes
Deliverables:
Detailed migration plan with timelines and dependencies
Wave plan with application groupings
Landing zone architecture documentation
Network diagrams and security documentation
Runbooks and standard operating procedures
Risk mitigation plans
Communication and change management plan
Phase 3: Migration Execution
Pre-Migration Preparation
Before migrating each wave, we ensure readiness:
Testing Environment Setup:
Create pilot environment in AWS
Configure monitoring and logging
Test network connectivity
Validate backup and recovery procedures
Conduct security verification
Data Migration Planning:
Calculate data transfer times based on volume and bandwidth
Select optimal data transfer method (internet, Direct Connect, AWS Snowball)
Plan for initial bulk transfer and ongoing delta synchronization
Schedule data cutover windows
Prepare data validation procedures
Application Migration Process:
For each application in the migration wave:
1. Pre-Migration Testing (Week 1-2)
Deploy application infrastructure using infrastructure as code
Configure networking, security groups, and access controls
Test application deployment procedures
Validate monitoring and alerting
Conduct performance baseline testing
2. Initial Data Replication (Week 2-3)
Begin initial data transfer to AWS
Configure continuous replication for databases
Validate data integrity and completeness
Test application functionality with replicated data
Measure replication lag and optimize as needed
3. Pre-Cutover Validation (Week 3-4)
Complete full application testing in AWS environment
Conduct user acceptance testing (UAT)
Perform load and performance testing
Validate disaster recovery procedures
Obtain stakeholder signoff for cutover
4. Cutover Execution (Cutover Window)
Execute go/no-go decision meeting
Stop application write operations
Perform final data synchronization
Switch DNS or load balancer to AWS environment
Validate application functionality
Monitor for issues
Communicate cutover completion
5. Post-Migration Stabilization (Week 1-2)
24/7 monitoring and support
Rapid issue resolution
Performance tuning and optimization
User support and issue tracking
Conduct post-mortem and lessons learned
Migration Techniques by Workload Type:
Database Migration:
AWS Database Migration Service (DMS): Continuous replication with minimal downtime
Native Replication: MySQL replication, Oracle Data Guard, SQL Server Always On
Backup and Restore: For smaller databases or extended maintenance windows
AWS Schema Conversion Tool: For heterogeneous migrations (e.g., Oracle to Aurora)
Virtual Machine Migration:
AWS Application Migration Service: Continuous replication for VMware, Hyper-V, physical servers
VM Import/Export: For compatible virtual machine formats
Hybrid Approach: Combination of rehosting and refactoring
Storage Migration:
AWS DataSync: Automated data transfer for file systems
AWS Transfer Family: SFTP, FTPS, FTP for third-party transfers
S3 Transfer Acceleration: Fast internet-based transfers
AWS Snowball/Snowmobile: For petabyte-scale data transfers
Container Migration:
Amazon ECS/EKS: For containerized applications
AWS App2Container: Convert existing applications to containers
Docker image migration: Transfer container images to Amazon ECR
Zero-Downtime Migration Strategies:
Blue-Green Deployment:
Maintain parallel environments (blue = current, green = new)
Route traffic to new environment after validation
Keep old environment as instant rollback option
Decommission old environment after stabilization
Database Synchronization:
Establish bi-directional replication
Gradually shift read traffic to AWS
Switch write traffic during low-usage window
Monitor for replication lag and data consistency
Phased Traffic Migration:
Use weighted routing or load balancer rules
Start with 10% traffic to AWS environment
Gradually increase to 50%, then 100%
Monitor performance and errors at each stage
Instant rollback capability at each phase
Rollback Procedures:
Every migration includes documented rollback plans:
Pre-cutover snapshot of AWS environment
Maintained on-premises infrastructure until stabilization
Documented rollback procedures with time estimates
Clear rollback decision criteria
Communication plan for rollback scenario
Deliverables:
Migrated applications running in AWS
Performance validation reports
Post-migration optimization recommendations
Updated documentation and runbooks
Knowledge transfer to operations team
Lessons learned document
Decommissioning plan for on-premises infrastructure
Phase 4: Post-Migration Optimization
Performance Tuning
After migration, we optimize your AWS environment for peak performance:
Compute Optimization:
Right-size instances based on actual utilization
Implement auto-scaling for variable workloads
Consider Spot Instances for fault-tolerant workloads
Evaluate containerization for better resource utilization
Implement load balancing for high availability
Storage Optimization:
Select appropriate storage tiers (S3 Standard, IA, Glacier)
Implement lifecycle policies for automated tiering
Optimize database storage (GP3, Provisioned IOPS, Aurora I/O-Optimized)
Enable compression and deduplication where applicable
Database Optimization:
Query performance tuning
Index optimization
Read replica implementation for read-heavy workloads
Caching layer implementation (ElastiCache)
Database parameter tuning
Network Optimization:
Optimize data transfer patterns
Implement CloudFront for content delivery
Configure VPC endpoints for AWS service access
Review and optimize security group rules
Implement network monitoring and optimization
Cost Optimization
We continuously identify cost-saving opportunities:
Immediate Actions:
Terminate unused resources
Stop non-production resources during off-hours
Delete old snapshots and unattached volumes
Remove unused Elastic IPs
Short-Term Optimization (1-3 months):
Right-size over-provisioned instances
Convert to Reserved Instances or Savings Plans
Implement auto-scaling
Optimize storage tiers
Review and optimize data transfer costs
Ongoing Optimization:
Monthly cost reviews and recommendations
Quarterly architecture reviews
Annual reservation optimization
Continuous monitoring for new cost-saving opportunities
Expected Cost Savings:
Immediate: 15-25% through resource cleanup
3-6 months: Additional 15-20% through right-sizing and reservations
12 months: Total 35-50% compared to initial AWS spend
Operational Excellence
We help establish cloud operations best practices:
Monitoring & Alerting:
Comprehensive CloudWatch dashboards
Proactive alerting for issues
Application performance monitoring
Log aggregation and analysis
Automated incident response
Automation:
Infrastructure as code for all resources
Automated backup and recovery
Auto-remediation of common issues
Patch management automation
Cost optimization automation
Documentation & Training:
Updated architecture diagrams
Operational runbooks
Disaster recovery procedures
Team training on AWS services
Best practices documentation
Security Posture Enhancement:
Security audit and remediation
Implement AWS Security Hub recommendations
Conduct penetration testing
Implement automated compliance checking
Security awareness training
Continuous Improvement:
Regular AWS Well-Architected Framework reviews
Adoption of new AWS services and features
Performance optimization initiatives
Cost optimization programs
Innovation workshops
Migration Services Portfolio
Express Migration
For Small to Mid-Sized Organizations
Ideal For:
10-50 servers
Simple application architectures
Standard databases and web applications
Limited interdependencies
Timeline: 4-8 weeks
Includes:
Automated discovery and assessment
Standard landing zone setup
Lift-and-shift migration
Basic optimization
30-day post-migration support
Starting at: Contact for pricing
Enterprise Migration
For Large Organizations
Ideal For:
50-500+ servers
Complex application ecosystems
Multiple data centers
Hybrid cloud requirements
Strict compliance requirements
Timeline: 3-12 months
Includes:
Comprehensive assessment with TCO analysis
Custom landing zone design
Multi-wave migration execution
Advanced optimization and modernization
90-day post-migration support
Dedicated migration team
Pricing: Custom based on scope
Application Modernization
Beyond Lift-and-Shift
Transform applications to leverage cloud-native capabilities:
Containerization:
Convert applications to containers
Deploy on Amazon ECS or EKS
Implement microservices architecture
CI/CD pipeline setup
Serverless Transformation:
Refactor to AWS Lambda
Event-driven architecture design
API Gateway integration
DynamoDB and managed services
Database Modernization:
Migrate to Amazon Aurora
NoSQL database migration
Data lake implementation
Analytics and BI modernization
Pricing: Custom based on application complexity
Managed Migration Service
Fully Managed, Turnkey Solution
We Handle Everything:
Complete project management
All technical execution
Vendor coordination
License optimization
Change management
User training
24/7 support during migration
Ideal For:
Organizations with limited IT resources
Companies requiring minimal internal involvement
Time-sensitive migrations
Regulated industries requiring expert compliance handling
Pricing: Fixed-price packages available
Why Wave-Based Migration Works
Risk Mitigation
Learn from each wave before proceeding
Identify and resolve issues with low-risk applications first
Build team expertise progressively
Minimize impact of any single failure
Business Continuity
Never migrate everything at once
Maintain operational stability
Preserve fallback options
Controlled scope and predictable outcomes
Resource Management
Spread costs over time
Allocate IT staff effectively
Avoid overwhelming your team
Match migration pace to organizational capacity
Continuous Improvement
Apply lessons learned to subsequent waves
Refine processes and automation
Improve efficiency with each iteration
Optimize costs progressively
Success Metrics
We measure success across multiple dimensions:
Technical Metrics:
Migration completion rate: 98%+ success rate
Downtime: Average <2 hours per application
Performance: Maintain or improve application performance
Availability: 99.9%+ uptime post-migration
Business Metrics:
Cost reduction: 30-50% infrastructure cost savings
Time to migrate: Predictable timelines with ±10% variance
User satisfaction: Minimal disruption to end users
ROI: Positive return within 18-24 months
Operational Metrics:
Incident reduction: 40-60% fewer infrastructure incidents
Deployment speed: 5-10x faster application deployments
Recovery time: 80% faster disaster recovery
Security posture: Improved compliance and security
Industries We Serve
Healthcare
HIPAA-compliant migrations
Electronic health record (EHR) systems
Medical imaging and PACS
Telemedicine platforms
Healthcare analytics
Financial Services
PCI DSS compliance
Core banking systems
Payment processing
Trading platforms
Risk management systems
Retail & E-Commerce
E-commerce platforms
Point-of-sale systems
Inventory management
Customer data platforms
Omnichannel solutions
Manufacturing
ERP systems
Supply chain management
IoT and edge computing
Manufacturing execution systems
Quality management systems
Education
Learning management systems
Student information systems
Research computing
Campus infrastructure
Collaboration tools
Technology & SaaS
Product infrastructure
Development environments
CI/CD pipelines
Multi-tenant architectures
Global deployment
AWS Services We Leverage
Compute
Amazon EC2: Virtual servers
AWS Lambda: Serverless computing
Amazon ECS/EKS: Container orchestration
AWS Fargate: Serverless containers
AWS Batch: Batch processing
Storage
Amazon S3: Object storage
Amazon EBS: Block storage
Amazon EFS: File storage
Amazon FSx: Managed file systems
AWS Storage Gateway: Hybrid storage
Database
Amazon RDS: Relational databases
Amazon Aurora: High-performance database
Amazon DynamoDB: NoSQL database
Amazon DocumentDB: MongoDB-compatible
Amazon Redshift: Data warehouse
Migration Tools
AWS Application Migration Service: Server migration
AWS Database Migration Service: Database migration
AWS DataSync: Data transfer
AWS Transfer Family: File transfers
AWS Snow Family: Large-scale data transfer
Security
AWS IAM: Identity and access management
AWS KMS: Key management
AWS Shield: DDoS protection
AWS WAF: Web application firewall
Amazon GuardDuty: Threat detection
Management
AWS CloudFormation: Infrastructure as code
AWS Systems Manager: Operations management
AWS CloudWatch: Monitoring and logging
AWS CloudTrail: Audit logging
AWS Config: Configuration management
Get Started Today
Step 1: Free Consultation
Schedule a 60-minute consultation with our AWS migration experts to discuss your goals and challenges.
Step 2: Discovery Assessment
We'll conduct a preliminary assessment of your environment (usually 1-2 weeks) to understand scope and complexity.
Step 3: Receive Your Migration Plan
Get a detailed migration roadmap including timeline, costs, and expected outcomes.
Step 4: Execute Migration
Our expert team handles the migration while you maintain focus on your business.
Step 5: Optimize & Grow
Continuous optimization ensures you maximize the value of your AWS investment.
Contact Us
Ready to start your AWS migration journey?
Phone: 313-310-9093
Email: hr@awssol.com
Office Hours: Monday - Friday: 8:00 AM - 6:00 PM MST 24/7 Emergency Support for Active Migrations
AWSSOL LLC - Your trusted partner for seamless AWS cloud migration. Let's transform your infrastructure together.
