AWS Cloud Migration
Migrate to AWS with full support from certified experts. Assessment + TCO analysis, migration strategy according to 6R, execution, cost optimization. Gain AWS flexibility and often reduce infrastructure costs by 30-40%.
What is AWS Cloud Migration?
AWS Cloud Migration is a structured, expert-led process that moves your on-premise servers, databases, and applications to Amazon Web Services using the 6R strategy (rehost, replatform, refactor, repurchase, retire, retain), starting with a Migration Readiness Assessment and TCO analysis to prevent the 200% budget overruns common with unplanned lift-and-shift migrations. nFlo's AWS-certified architects build a secure Landing Zone, migrate workloads in controlled waves using AWS Application Migration Service and AWS DMS, and then optimize costs through Reserved Instances and rightsizing — typically delivering 30-40% infrastructure savings compared to on-premise TCO. For most workloads, production downtime is limited to a 15-minute to 1-hour service window.
Cloud migration is not lift-and-shift - that's a recipe for 200% budget overrun
AWS Migration according to AWS Well-Architected Framework
TCO Analysis
Real cost calculation on-premise vs AWS
6R Strategy
Optimal migration strategy for each workload
Cost Optimization
Reserved Instances, Savings Plans, rightsizing
€30,000/month Instead of €11,000 - A Failed AWS Migration Story
A SaaS company migrated 80 servers to AWS using lift-and-shift method. After 3 months AWS bill: €30,000/month. Estimated €11,000. Reasons: over-provisioned EC2 (m5.4xlarge where t3.medium would suffice), unused Reserved Instances, RDS Multi-AZ for dev/test, 30 TB data transfer that nobody predicted.
Without planned AWS migration:
- Costs 2-3x higher than on-premise - no rightsizing and reserved capacity
- Not utilizing AWS services - paying for EC2 instead of using RDS, Lambda, S3
- Poor performance - applications not adapted to cloud architecture
- Security gaps - default VPC, no encryption, public S3 buckets
- No governance - chaos in accounts, no tagging, cost control
From Migration Readiness Assessment to Well-Architected Optimization
We don’t do “quick and dirty” migrations. We start with Migration Readiness Assessment (MRA), TCO analysis, strategy selection for each workload. We build Landing Zone according to AWS best practices. We migrate in controlled waves. After migration we optimize costs and performance.
What you get:
- Migration Readiness Assessment (MRA) - organization’s cloud readiness
- Discovery and dependency mapping - what depends on what
- TCO Analysis - real on-premise vs AWS costs (5 years)
- 6R strategy for each workload (rehost/replatform/refactor)
- AWS Landing Zone - multi-account, networking, security baseline
- Server migration (AWS Application Migration Service)
- Database migration (AWS DMS - Database Migration Service)
- Application refactor for serverless/containers (if in scope)
- Backup configuration (AWS Backup), monitoring (CloudWatch)
- Security hardening - encryption, IAM, Security Groups, GuardDuty
- Cost optimization - rightsizing, RI/SP, Compute Optimizer
- Well-Architected Review post-migration
- Documentation and team training
- 30/60/90 day post-migration support
Who Is It For?
This service is for you if:
- You’re planning AWS migration and want to do it right the first time
- You want to reduce infrastructure costs through cloud flexibility
- You need DR without second data center costs
- Hardware support or data center lease is ending
- You want to leverage AWS services (RDS, Lambda, EKS) not just EC2
- You need global availability across multiple regions
AWS Services We Use
Compute
- EC2 - virtual machines (lift-and-shift)
- Lambda - serverless compute (event-driven workloads)
- ECS/EKS - Docker containers and Kubernetes
- Lightsail - simple VMs for small applications
Storage
- S3 - object storage (backup, archive, static content)
- EBS - block storage for EC2
- EFS - shared file system (NFS)
- S3 Glacier - long-term archive (cheap storage)
Database
- RDS - managed relational DB (MySQL, PostgreSQL, SQL Server, Oracle)
- Aurora - cloud-native DB compatible with MySQL/PostgreSQL
- DynamoDB - NoSQL serverless
- ElastiCache - Redis/Memcached
Networking
- VPC - isolated network
- Direct Connect - dedicated link to AWS
- CloudFront - CDN for global distribution
- Route 53 - DNS
Migration & Transfer
- Application Migration Service - server rehost
- Database Migration Service - database migration with <1h downtime
- DataSync - large data volume transfer
- Snow Family - physical petabyte transfer
Migration Strategies - 6R for AWS
For each workload we choose optimal strategy:
1. Rehost (Lift-and-Shift) - AWS MGN
- SQL Server on VM → EC2 with SQL Server
- File server → EC2 or FSx
2. Replatform - minimal changes
- SQL Server on VM → RDS for SQL Server (managed)
- App server → EC2 with Auto Scaling
3. Repurchase - SaaS
- Exchange → Microsoft 365
- CRM → Salesforce
4. Refactor - cloud-native
- Monolith → microservices + EKS + Lambda
- VM-based app → containers + Fargate
5. Retire - decommission
- Legacy applications that can be turned off
6. Retain - keep on-premise
- For compliance or very low latency requirements
Related Glossary Terms
Learn more about key concepts related to this service:
Contact your account manager
Discuss AWS Cloud Migration with your dedicated account manager.
How we work
Our proven service delivery process.
Assessment
Infrastructure discovery, dependency mapping, TCO
Strategy
6R strategy for each workload
Landing Zone
AWS accounts, VPC, networking, security baseline
Migration
Migration in waves with testing and rollback
Optimization
Cost optimization, performance tuning, automation
Benefits for your business
What you gain by choosing this service.
Lower TCO
30-40% savings through optimization and pay-as-you-go
On-demand Scalability
Scale up/down based on load - pay for what you need
Global Availability
Deploy in regions close to users - low latency
DR Included
Multi-AZ, snapshots, S3 backup - DR without second DC
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Read more →Frequently Asked Questions
Common questions about AWS Cloud Migration.
How much does AWS migration cost?
Assessment + migration of 20 VMs using rehost: €15,000-25,000. Full migration of 100 VMs with replatform: €60,000-125,000. Application refactor: additional €50,000-100,000 per application. Migration Readiness Assessment included.
How much will I pay monthly for AWS?
Depends on workloads. Typically 30-40% cheaper than on-premise TCO (with optimization). For 20 medium-sized VMs: €3,500-6,000/month. We'll prepare exact TCO calculation after assessment.
How long does AWS migration take?
Rehost 20 VMs: 6-8 weeks. Full migration of 100 VMs in waves: 4-6 months. Application refactor adds 3-6 months. Landing Zone built in 2-3 weeks.
Will there be downtime during migration?
For most workloads - minimal downtime (15min-1h in service window). AWS DMS allows database migration with <1h downtime. Critical applications - zero downtime with blue/green deployment.
What about Reserved Instances and Savings Plans?
We recommend RI/SP only after 1-2 months in AWS when we see actual usage. Typically 50-70% of steady-state workloads are covered by RI/SP giving 40-60% savings vs on-demand.