OVH to AWS Migration | Complete 2026 Guide & Best Practices

Why Organizations Are Migrating from OVH to AWS

In 2026, OVH to AWS migration has become a strategic priority for thousands of enterprises seeking enhanced scalability, advanced cloud services, and global infrastructure reach. While OVHcloud serves over 1.6 million customers across Europe with competitive pricing and GDPR-compliant infrastructure, Amazon Web Services (AWS) dominates with 32% global market share, offering 200+ services spanning AI/ML, serverless computing, managed databases, and IoT across 33 regions with 105 Availability Zones. Organizations migrate from OVH to AWS to access cutting-edge technologies like Amazon SageMaker for machine learning, AWS Lambda for serverless architectures, Amazon Aurora for high-performance databases, and comprehensive compliance certifications (HIPAA, FedRAMP High, SOC 2, PCI DSS). However, OVHcloud to AWS transition requires meticulous planning—addressing data transfer logistics, application refactoring, network reconfiguration, security compliance, cost optimization, and downtime minimization. This comprehensive 2026 guide provides CTOs, developers, startup founders, and IT architects with a proven migration strategy, covering assessment methodologies, AWS migration tools (Migration Hub, Database Migration Service, CloudEndure), pricing comparisons, real-world case studies, and post-migration optimization best practices.

What is OVHcloud?aws

OVHcloud (formerly OVH) is a European cloud infrastructure provider founded in 1999, headquartered in France, operating 37 data centers across Europe, North America, and Asia-Pacific. OVH specializes in bare-metal servers, virtual private servers (VPS), dedicated hosting, and public/private cloud solutions targeting cost-conscious enterprises, European businesses prioritizing GDPR compliance, and organizations requiring local data residency.

Key Features of OVHcloud

Infrastructure Offerings

• Bare-Metal Servers: High-performance dedicated servers with customizable CPU (Intel Xeon, AMD EPYC), RAM (up to 768 GB), and storage (NVMe SSD, HDD RAID configurations). Starting at €50/month.
• Public Cloud Instances: OpenStack-based VMs with hourly/monthly billing, supporting Linux and Windows workloads across 12 global regions.
• Private Cloud (VMware): Hosted VMware vSphere infrastructure for enterprise virtualization with vCenter management.
• Kubernetes: Managed Kubernetes clusters for container orchestration.

Storage Solutions

• Object Storage: S3-compatible object storage (OpenStack Swift) at €0.01/GB/month—significantly cheaper than AWS S3 ($0.023/GB/month).
• Block Storage: SSD/NVMe volumes attachable to instances, starting at €0.04/GB/month.
• Cold Storage: Archival storage for compliance and backup at €0.002/GB/month.

Networking & Security

• vRack: Private networking backbone connecting OVH services across data centers with 10 Gbps bandwidth.
• DDoS Protection: Included with all services—anti-DDoS infrastructure mitigating attacks up to 1 Tbps.
• Load Balancers: HTTP/TCP load balancing with SSL offloading.

Database Services

• Managed Databases: PostgreSQL, MySQL, MongoDB, Redis with automated backups and high availability (limited compared to AWS RDS feature set).

OVHcloud Use Cases

• European SMBs and startups: Companies prioritizing GDPR compliance and European data sovereignty (servers in France, Germany, UK, Poland).
• Cost-sensitive workloads: Web hosting, development environments, and batch processing benefiting from OVH’s aggressive pricing (30-50% cheaper than AWS for compute).
• Gaming servers: Low-latency bare-metal servers for Minecraft, ARK, Rust, and Counter-Strike hosting.
• Video streaming: High-bandwidth infrastructure for content delivery and transcoding.

Limitations:

• Limited managed services: No equivalents to AWS Lambda, SageMaker, DynamoDB, or Redshift.
• Smaller ecosystem: Fewer third-party integrations, limited marketplace applications.
• Regional coverage: Weaker presence in Asia-Pacific, Middle East, and Latin America compared to AWS’s 33 regions.

What is Amazon Web Services (AWS)?

Amazon Web Services, launched in 2006, is the global leader in cloud infrastructure, offering over 200 services across compute (EC2, Lambda), storage (S3, EBS), databases (RDS, DynamoDB, Aurora), networking (VPC, CloudFront), AI/ML (SageMaker, Rekognition), IoT (IoT Core, Greengrass), analytics (Redshift, Athena, Kinesis), and security (IAM, KMS, WAF). AWS operates 33 geographic regions with 105 Availability Zones and 500+ CloudFront edge locations, ensuring low-latency access worldwide.

Key Features of AWS

Compute Services

• Amazon EC2: 500+ instance types spanning general-purpose (t3, m5), compute-optimized (c6i), memory-optimized (r6i), storage-optimized (i4i), and GPU-accelerated (p4, g5) families. Supports Graviton ARM processors for 40% better price-performance.
• AWS Lambda: Serverless compute with 15-minute execution limit, 10 GB memory, and automatic scaling to millions of requests per second.
• AWS Elastic Beanstalk: PaaS for deploying Node.js, Python, Java, .NET, PHP, Ruby, Go, and Docker applications.
• Amazon ECS/EKS: Managed container orchestration for Docker (ECS) and Kubernetes (EKS).

Storage & Database

• Amazon S3: Object storage with 99.999999999% durability, supporting 8 storage classes (Standard, Intelligent-Tiering, Glacier, Deep Archive).
• Amazon RDS: Managed relational databases (MySQL, PostgreSQL, MariaDB, Oracle, SQL Server) with Multi-AZ high availability and automated backups.
• Amazon Aurora: MySQL/PostgreSQL-compatible database delivering 5x MySQL and 3x PostgreSQL throughput with 99.99% SLA.
• Amazon DynamoDB: Fully managed NoSQL database with single-digit millisecond latency and unlimited scaling.

Migration Tools

• AWS Migration Hub: Centralized dashboard tracking migrations from on-premises, OVH, or other clouds.
• AWS Database Migration Service (DMS): Replicates databases (MySQL, PostgreSQL, Oracle, MongoDB) to AWS with minimal downtime—supports homogeneous and heterogeneous migrations.
• AWS Server Migration Service (SMS): Automates migration of VMware, Hyper-V, and OVH VMs to Amazon EC2.
• CloudEndure Migration: Agent-based continuous replication for physical, virtual, and cloud servers with automated cutover and rollback.
• AWS DataSync: Transfers data from on-premises/OVH to S3, EFS, or FSx with 10x faster speeds than open-source tools.
• AWS Snow Family: Physical devices (Snowcone, Snowball, Snowmobile) for petabyte-scale offline data transfer when network bandwidth is constrained.

Advanced Services

• Amazon SageMaker: End-to-end ML platform for training, deploying, and managing models with Autopilot (AutoML), distributed training, and MLOps.
• AWS Lambda@Edge: Run code at CloudFront edge locations for sub-10ms latency globally.
• Amazon Redshift: Petabyte-scale data warehouse for analytics with columnar storage and parallel query execution.

AWS Use Cases

• Global enterprise applications: Multi-region deployments with CloudFront CDN, Route 53 DNS, and DynamoDB Global Tables.
• AI/ML workloads: Training large language models on SageMaker with GPU instances (p4d.24xlarge with 8x NVIDIA A100 GPUs).
• Serverless architectures: Event-driven applications using Lambda, API Gateway, DynamoDB, and S3.
• Hybrid cloud: AWS Outposts bringing AWS infrastructure on-premises for latency-sensitive or regulated workloads.
• Disaster recovery: Cross-region replication, automated backups (RDS, S3), and Elastic Disaster Recovery (CloudEndure DR).

OVH vs AWS: Key Differences Impacting Migration

1. Infrastructure Scope & Global Reach

Migration implication: Applications designed for OVH’s single-region architecture must be re-architected for AWS Multi-AZ high availability and cross-region disaster recovery.

2. Pricing Models

OVHcloud Pricing (predictable, lower base costs):

• VPS (s1-2): 1 vCPU, 2 GB RAM, 20 GB SSD = €3.50/month (~$3.80)
• Public Cloud B2-7: 2 vCPU, 7 GB RAM = €0.0311/hour (~$22.40/month)
• Bare-Metal Server (Rise-1): Intel Xeon E-2136, 32 GB RAM, 2x 500 GB NVMe = €59/month
• Object Storage: €0.01/GB/month
• Bandwidth: Generous included egress (1-3 TB/month depending on service)

AWS Pricing (pay-as-you-go, complex):

• EC2 t3.small: 2 vCPU, 2 GB RAM = $0.0208/hour (~$15.18/month) in us-east-1
• EC2 m5.large: 2 vCPU, 8 GB RAM = $0.096/hour (~$70/month)
• S3 Standard: $0.023/GB/month storage + $0.09/GB egress (first 10 TB)
• RDS MySQL db.t3.small: $0.034/hour (~$25/month) + storage + I/O costs
• Data transfer: $0.09/GB out to internet (expensive at scale)

Cost example (web application with 100 TB storage, 10 TB monthly egress):

• OVH: €1,000 storage + €0 egress (included) = €1,000/month (~$1,090)
• AWS: $2,300 storage (S3) + $900 egress (10 TB × $0.09) = $3,200/month

Migration implication: AWS costs 2-3x more for bandwidth-heavy workloads. However, AWS Reserved Instances (40-60% discount for 1-3 year commitments) and Savings Plans can match OVH pricing for steady workloads.

3. Networking Architecture

OVHcloud:

• vRack: Private network connecting OVH services within a region (10 Gbps).
• Public IPs: Assigned to each instance; limited network segmentation.
• No VPC: Flat network model without subnets, route tables, or security groups.

AWS:

• Amazon VPC: Isolated virtual networks with custom IP ranges (CIDR blocks), subnets (public/private), route tables, and network ACLs.
• Security Groups: Stateful firewall rules at instance level.
• NAT Gateway: Enables private subnet instances to access internet without exposing public IPs.
• VPC Peering / Transit Gateway: Connect multiple VPCs within or across regions.
• Direct Connect: Dedicated 1-100 Gbps connection bypassing public internet.

Migration challenge: OVH flat networks must be redesigned for AWS VPC architecture—defining subnets, routing, security groups, and NAT gateways.

4. Compliance & Data Residency

Migration implication: Organizations migrating healthcare (HIPAA) or government (FedRAMP) workloads gain compliance coverage on AWS. European companies must ensure AWS EU regions are used to maintain GDPR data residency.

OVH to AWS Migration Strategy: 6-Phase Approach

Phase 1: Assessment & Discovery (2-4 weeks)

Objectives: Inventory OVH infrastructure, identify dependencies, estimate costs, define success criteria.

Key Activities:

• Infrastructure inventory: Document all OVH assets—VMs (CPU, RAM, storage), bare-metal servers, databases, object storage, vRack networking, DNS records, SSL certificates.
• Application dependency mapping: Use tools like CloudEndure Migration or AWS Application Discovery Service to identify application tiers (web, app, database), network flows, and inter-service communication.
• Performance baseline: Collect metrics (CPU, RAM, IOPS, network throughput) for rightsizing AWS instances (e.g., OVH b2-7 → AWS t3.large or m5.large).
• Data volume assessment: Measure storage (object, block, database) to estimate AWS DataSync or Snowball transfer times.
• Cost modeling: Use AWS Pricing Calculator to project monthly costs. Compare OVH €2,000/month baseline against AWS $3,500/month projection, factoring Reserved Instances savings.
• Compliance check: Verify data residency requirements (e.g., GDPR mandates EU regions: eu-west-1 Ireland, eu-central-1 Frankfurt, eu-west-3 Paris).

Tools:

• AWS Application Discovery Service: Agent-based or agentless discovery of on-premises/OVH servers.
• AWS Migration Evaluator (formerly TSO Logic): Right-sizing recommendations and cost projections.
• CloudEndure: Free migration tool (owned by AWS) for continuous replication.

Deliverables:

• Migration project plan (Gantt chart with milestones)
• Application portfolio matrix (criticality, complexity, dependencies)
• AWS architecture diagram (VPC design, subnet layout, security groups)
• TCO analysis (3-year OVH vs. AWS cost comparison)

Phase 2: AWS Environment Setup (1-2 weeks)

Objectives: Provision AWS infrastructure, configure networking, establish security baselines.

Key Activities:

• Create AWS Landing Zone: Use AWS Control Tower to set up multi-account structure (production, staging, development) with AWS Organizations for consolidated billing and governance.
• Design VPC architecture:
  • Production VPC: 10.0.0.0/16 CIDR block
    • Public subnets (10.0.1.0/24, 10.0.2.0/24) for load balancers, bastion hosts
    • Private subnets (10.0.10.0/24, 10.0.11.0/24) for application servers, databases
    • Database subnets (10.0.20.0/24, 10.0.21.0/24) isolated with security groups
  • Route tables: Public subnets route 0.0.0.0/0 to Internet Gateway; private subnets route to NAT Gateway.
• Security groups: Define inbound/outbound rules (e.g., allow HTTPS 443 from 0.0.0.0/0 to load balancer, allow MySQL 3306 from app tier to database tier only).
• IAM configuration: Create roles for EC2 instances (to access S3, Secrets Manager), developers (read-only access), and admins (full access with MFA enforcement).
• Enable AWS CloudTrail: Log all API calls for audit compliance (GDPR, HIPAA).
• Set up AWS CloudWatch: Create alarms for CPU >80%, disk >90%, failed login attempts.

Infrastructure-as-Code: Use Terraform or AWS CloudFormation to version-control infrastructure:

resource “aws_vpc” “main” {

  cidr_block = “10.0.0.0/16”

  enable_dns_hostnames = true

  tags = { Name = “Production-VPC” }

}

Pro Tip: Enable VPC Flow Logs to troubleshoot network connectivity issues post-migration.

Phase 3: Data Migration (2-6 weeks)

Objectives: Transfer OVH data (object storage, block storage, databases) to AWS with minimal downtime.

3.1 Object Storage Migration (OVH Object Storage → Amazon S3)

Method: Use AWS DataSync or rclone for S3-compatible sync.

Steps:

• Install AWS DataSync agent on OVH VM or use rclone CLI.
• Configure source (OVH Object Storage S3 endpoint) and destination (AWS S3 bucket).
• Enable versioning and lifecycle policies on S3 (move to Glacier after 90 days).
• Run initial full sync (e.g., 50 TB over 10 Gbps = ~12 hours).
• Schedule incremental syncs until cutover.

rclone example:

Copy

rclone sync ovh:bucket-name s3:aws-bucket-name –progress –transfers 16

Cost: OVH egress is free (up to 1 TB/month); AWS ingress is free. Only pay S3 storage ($0.023/GB/month).

3.2 Database Migration (OVH MySQL/PostgreSQL → Amazon RDS/Aurora)

Method: Use AWS Database Migration Service (DMS) for near-zero downtime migration.

Steps:

• Create RDS target: Provision Amazon Aurora MySQL-compatible cluster (db.r6i.xlarge with Multi-AZ, automated backups).
• Set up DMS replication instance: Use dms.c5.large instance in same VPC/region.
• Create DMS source endpoint: Connect to OVH MySQL database (public IP or VPN tunnel for security).
• Create DMS target endpoint: Connect to Aurora cluster.
• Create DMS task: Select “Migrate existing data and replicate ongoing changes” (CDC – Change Data Capture).
• Start replication: DMS performs full load, then continuous replication of OVH database writes to Aurora.
• Cutover: Stop OVH application, verify data consistency (row counts, checksums), switch application connection string to Aurora, restart application.

Downtime: 5-15 minutes (application restart only; DMS replicates continuously).

DMS Pricing: ~$0.15/hour per replication instance + data transfer (free inbound to AWS).

Pro Tip: Test migration with a staging database first. Use AWS Schema Conversion Tool (SCT) if migrating from Oracle/SQL Server to PostgreSQL (heterogeneous migration).

3.3 Block Storage / File Systems (OVH VMs → Amazon EBS/EFS)

Method: Use CloudEndure Migration for VM replication or AWS DataSync for NFS file shares.

CloudEndure VM Migration:

• Install CloudEndure agent on OVH VMs (supports Linux, Windows).
• Agent replicates VM disk continuously to AWS staging area (S3/EBS).
• Test launch: Create temporary EC2 instances to verify applications work.
• Cutover: Stop OVH VMs, launch production EC2 instances from replicated disks, update DNS records.

Downtime: 10-30 minutes (DNS propagation time).

DataSync for NFS shares:

• Deploy AWS DataSync agent as OVH VM.
• Create DataSync task from OVH NFS export to Amazon EFS.
• Schedule initial sync and incremental syncs.

3.4 Offline Data Transfer (AWS Snow Family for >100 TB)

For massive datasets (>100 TB), ship AWS Snowball Edge devices to OVH data center:

• Order Snowball Edge (80 TB usable capacity, $300 per 10-day period + $0.03/GB shipping).
• Connect to OVH network, copy data locally (10 Gbps interface = ~18 hours for 80 TB).
• Ship device to AWS; AWS ingests data to S3 within 2-3 days.

Use case: Video archives, genomic datasets, backup repositories.

Phase 4: Application Migration (3-8 weeks)

Objectives: Migrate workloads (VMs, containers, serverless) with minimal refactoring.

4.1 Lift-and-Shift (Rehost)

Approach: Move OVH VMs to EC2 with minimal changes using AWS Server Migration Service (SMS) or CloudEndure.

Steps:

• Rightsizing: Map OVH instance types to AWS (e.g., OVH b2-15 [4 vCPU, 15 GB RAM] → AWS m5.xlarge [4 vCPU, 16 GB RAM]).
• Replicate VMs: CloudEndure continuously syncs OVH VM disks to AWS.
• Test instances: Launch EC2 from replicated snapshots, verify applications.
• Update configurations: Change database connection strings, API endpoints, load balancer IPs.
• Cutover: Stop OVH VMs, launch production EC2, update Route 53 DNS (weighted routing for gradual cutover).

Pros: Fastest migration (days to weeks).
Cons: Misses AWS-native benefits (auto-scaling, managed services).

4.2 Replatforming (Lift-Tinker-Shift)

Approach: Migrate to AWS managed services for operational efficiency.

Examples:

• OVH managed MySQL → Amazon RDS MySQL (automated backups, Multi-AZ, read replicas)
• OVH Kubernetes → Amazon EKS (managed control plane, automatic upgrades)
• OVH VMs running cron jobs → AWS Lambda (serverless, pay-per-invocation)

Benefits: Reduced operational overhead (no OS patching, no database maintenance).

4.3 Refactoring (Re-architecting)

Approach: Redesign applications for cloud-native architectures.

Examples:

• Monolithic OVH VM → Microservices on ECS/EKS (containerized services, independent scaling)
• OVH PostgreSQL → Amazon DynamoDB (NoSQL, single-digit millisecond latency, unlimited scaling)
• OVH bare-metal batch processing → AWS Batch + Spot Instances (90% cost savings for interruptible workloads)

Timeline: 3-6 months for complex applications.
ROI: Long-term cost savings (30-50%) and improved scalability.

OVH to AWS Migration Tools Comparison

Recommendation: Use CloudEndure for VMs (free, low downtime), DMS for databases (CDC replication), and DataSync for object storage (automated, incremental).

Real-World OVH to AWS Migration Case Studies

Case Study 1: European E-Commerce Platform (€50K/month OVH → $80K/month AWS)

Challenge: 50 OVH bare-metal servers hosting monolithic PHP application (MySQL, Redis, Nginx) serving 5M users across Europe. OVH infrastructure struggled with Black Friday traffic spikes (10x normal load).

Migration Strategy:

• Lift-and-shift: Migrated 50 bare-metal servers to EC2 c6i.2xlarge instances (8 vCPU, 16 GB RAM) using CloudEndure (2 weeks).
• Database: Migrated MySQL (3 TB) to Amazon Aurora MySQL with Multi-AZ (DMS continuous replication, 10-minute cutover).
• Storage: Moved 100 TB product images from OVH Object Storage to S3 with DataSync (48 hours).
• CDN: Deployed CloudFront with 500+ global PoPs (reduced page load time from 2.5s to 800ms).

Results:

• Downtime: 15 minutes (DNS cutover only).
• Performance: 3x faster page loads, handled 50K concurrent users (vs. 5K on OVH).
• Cost: Increased to $80K/month initially, reduced to $60K/month after Reserved Instances + Spot (still 20% higher than OVH but justified by scalability).
• ROI: Black Friday revenue increased 40% due to zero downtime and faster checkout experience.

Case Study 2: SaaS Startup (UK) – OVH to AWS for HIPAA Compliance

Challenge: Healthcare SaaS startup on OVH (UK data center) needed HIPAA certification for US expansion. OVH lacks HIPAA BAA.

Migration Strategy:

• Replatforming: Migrated Node.js application from OVH VMs to AWS Elastic Beanstalk (auto-scaling, managed platform).
• Database: Moved PostgreSQL to Amazon RDS with encryption at rest (KMS) and in transit (SSL/TLS).
• Storage: Patient medical records migrated from OVH Object Storage to S3 with server-side encryption (SSE-KMS).
• Compliance: Enabled CloudTrail, Config, GuardDuty, and signed AWS HIPAA BAA.

Results:

• Timeline: 6 weeks (assessment, migration, testing, audit).
• Compliance: Achieved HIPAA certification, passed third-party audit.
• Cost: $5K/month OVH → $8K/month AWS (60% increase justified by US market access).
• Outcome: Secured 3 major US hospital contracts worth $500K ARR.

Case Study 3: Video Streaming Platform – Hybrid OVH + AWS Architecture

Challenge: Video streaming platform with 200 TB video library on OVH (cheap storage) but needed AWS for global CDN and ML-based recommendation engine.

Hybrid Strategy:

• Storage: Kept video masters on OVH Object Storage (€0.01/GB/month = €2,000/month for 200 TB).
• CDN: Replicated popular videos to S3 + CloudFront (served 80% of traffic from CloudFront, 20% from OVH).
• ML: Built recommendation engine on SageMaker (trained models on user viewing history).
• Cost optimization: Used S3 Intelligent-Tiering (moved cold videos to Glacier, saving 60% storage costs).

Results:

• Cost: €2,000/month (OVH storage) + $6,000/month (AWS CDN + ML) = $8,200/month total (vs. $20,000/month if fully on AWS).
• Performance: 50% reduction in video buffering (CloudFront edge caching).
• User engagement: 30% increase in watch time (ML recommendations).

Best Practices for OVH to AWS Migration

1. Start with Non-Critical Workloads

Migrate development/staging environments first to build team expertise and validate migration tools. Avoid migrating production databases or customer-facing applications in the first wave.

2. Leverage AWS Free Tier & Credits

AWS offers 12-month free tier (750 hours/month t2.micro EC2, 5 GB S3, 750 hours RDS) and Migration Acceleration Program (MAP) credits (up to $200K for enterprise migrations). Apply for AWS Activate (startups get $100K credits).

3. Implement Multi-AZ Architecture from Day One

OVH’s single-AZ design means applications aren’t fault-tolerant by default. Deploy EC2 instances, RDS databases, and load balancers across 2-3 Availability Zones for 99.99% uptime SLA.

Example: Deploy Auto Scaling Group with instances in us-east-1a, us-east-1b, and us-east-1c. If one AZ fails (rare but happens), traffic automatically routes to healthy AZs.

Frequently Asked Questions (FAQ)

1. How long does OVH to AWS migration take?

Small workloads: 4-8 weeks; mid-sized: 3-6 months; large-scale: 6-12 months. Timeline depends on complexity, dependencies, and testing.

2. What is the typical cost difference between OVH and AWS?

OVH is cheaper for raw compute/storage, but AWS offers managed services, compliance, and scalability. Cost can be optimized with Reserved or Spot Instances.

3. Can I migrate OVH databases to AWS with zero downtime?

Yes, using AWS Database Migration Service (DMS) with CDC. Downtime is limited to 5-15 minutes during cutover.

4. Do I need to refactor applications when migrating from OVH to AWS?

Not initially. Lift-and-shift works first, but replatforming or refactoring is recommended to leverage AWS services fully.

5. Can I keep some workloads on OVH and others on AWS (hybrid cloud)?

Yes. Hybrid OVH + AWS setups are common for cost and performance optimization using VPN or Direct Connect.

Conclusion: Executing a Successful OVH to AWS Migration in 2026

OVH to AWS migration in 2026 delivers transformative benefits—global scalability, 200+ advanced cloud services, enterprise-grade compliance (HIPAA, FedRAMP), and cutting-edge AI/ML capabilities—but demands rigorous planning, proven migration tools, and ongoing optimization. At GoCloud, we guide CTOs, developers, and IT architects through this process with expert support. This guide equips them with a comprehensive 6-phase strategy: assessment (inventory, cost modeling), AWS environment setup (VPC, security), data migration (DMS, DataSync, CloudEndure), application migration (lift-and-shift, replatforming), testing (functional, performance, security), and cutover (DNS, monitoring, optimization), ensuring a seamless and optimized cloud transition.