Azure Migration Services — Plan, Execute, Optimise
Migrating to Azure without a structured approach leads to budget overruns, extended timelines, and environments that cost more than the infrastructure they replaced. Opsio's Azure migration services provide end-to-end support — from assessment and landing zone design through execution and post-migration optimisation — ensuring your workloads arrive on Azure secure, performant, and cost-effective.
Trusted by 100+ organisations across 6 countries · 4.9/5 client rating
200+
Workloads Migrated
35%
Avg Cost Savings
0
Downtime Events
99.9%
Post-Migration Uptime
What is Azure Migration Services?
Azure migration services encompass the assessment, planning, architecture design, execution, and optimisation required to move on-premises or other cloud workloads to Microsoft Azure — covering compute, databases, applications, and data.
Migrate to Azure With Zero Downtime
Azure migration projects fail for predictable reasons: incomplete discovery misses critical dependencies, landing zones are built without proper governance, databases are migrated without testing application compatibility, and post-migration optimisation is skipped because the team is exhausted from the migration itself. The result is an Azure environment that costs more than on-premises, performs worse, and requires constant firefighting. These failures are avoidable with proper methodology. Opsio follows a structured four-phase migration methodology: Assess, Design, Execute, Optimise. Assessment uses Azure Migrate and custom discovery tools to catalogue every workload, dependency, and data flow. Design builds the landing zone — management groups, subscriptions, networking, security policies, and identity integration — using Terraform for reproducibility. Execution migrates workloads in prioritised waves using Azure Migrate, Database Migration Service, and custom tooling with zero-downtime cutover strategies. Optimisation right-sizes resources, implements Reserved Instances, and configures monitoring for steady-state operations.
Our certified Azure architects have migrated hundreds of workloads across industries including financial services, healthcare, manufacturing, and technology. We handle every migration path: VMware to Azure, Hyper-V to Azure, physical servers to Azure VMs, SQL Server to Azure SQL, and application re-platforming to Azure App Service, AKS, or Azure Functions. Every migration includes security hardening, compliance validation, and performance testing before production cutover.
What We Deliver
Migration Assessment
Azure Migrate-driven discovery of servers, databases, applications, and dependencies. TCO analysis, migration complexity scoring, and wave planning for phased execution. Compliance gap analysis for regulated workloads.
Landing Zone Architecture
Enterprise-scale landing zones using management groups, subscriptions, and Azure Policy. Hub-and-spoke networking, Azure Firewall, Private Link, Azure AD integration, and compliance guardrails deployed via Terraform.
Server Migration
Azure Migrate for VMware, Hyper-V, and physical server migration with continuous replication and minimal cutover downtime. Re-platforming to Azure App Service or AKS for suitable workloads.
Database Migration
Azure Database Migration Service for SQL Server, MySQL, PostgreSQL, and Oracle migrations. Schema assessment, compatibility testing, continuous replication, and validated cutover with near-zero downtime.
Post-Migration Optimisation
Right-sizing with Azure Advisor, Reserved Instance and Savings Plan implementation, monitoring configuration with Azure Monitor, and security posture validation with Defender for Cloud.
Ready to get started?
Get Your Free Migration AssessmentWhy Choose Opsio
Proven methodology
Assess, Design, Execute, Optimise — a structured approach that eliminates the surprises causing 65% of migrations to exceed budget.
Zero-downtime execution
Continuous replication, blue-green cutover, and DNS failover ensure your business runs uninterrupted throughout migration.
Landing zone first
Governance, security, and networking designed before the first workload migrates — not retrofitted after the mess is already in production.
Optimisation included
Post-migration right-sizing and cost optimisation ensure you actually realise the savings that justified the migration.
Not sure yet? Start with a pilot.
Begin with a focused 2-week assessment. See real results before committing to a full engagement. If you proceed, the pilot cost is credited toward your project.
Our Delivery Process
Assess
Discover all workloads, map dependencies, analyse TCO, and classify migration strategy per workload. Deliverable: migration readiness report and wave plan. Timeline: 2-3 weeks.
Design
Build the Azure landing zone: networking, security, identity, governance, and compliance controls deployed via Terraform. Timeline: 2-4 weeks.
Execute
Migrate workloads in prioritised waves using Azure Migrate and DMS. Each wave includes testing, validation, and zero-downtime cutover. Timeline: 4-16 weeks depending on scope.
Optimise
Right-size resources, implement Reserved Instances, configure monitoring, and hand over operational documentation. Timeline: 2-3 weeks.
Key Takeaways
- Migration Assessment
- Landing Zone Architecture
- Server Migration
- Database Migration
- Post-Migration Optimisation
Azure Migration Services — Plan, Execute, Optimise FAQ
How long does an Azure migration take?
A focused migration of 10-20 servers takes 6-10 weeks including assessment and landing zone setup. Enterprise migrations with 50-200+ workloads typically run 4-9 months in phased waves. Opsio accelerates timelines by running assessment and landing zone preparation in parallel and executing migration waves concurrently where dependencies allow.
What does Azure migration cost?
Assessment and landing zone design runs $15,000-$40,000. End-to-end migration execution ranges from $50,000-$250,000+ depending on workload count, database complexity, and required re-platforming. Post-migration optimisation typically saves 25-35% on monthly Azure costs, delivering ROI within 12-18 months. Detailed pricing is provided during the assessment phase.
Can we migrate databases without downtime?
Yes. Azure Database Migration Service (DMS) supports continuous replication for SQL Server, MySQL, PostgreSQL, and Oracle. Data replicates continuously from source to Azure, with a brief cutover window (typically minutes) for the final switchover. For applications requiring true zero-downtime, we implement dual-write patterns with automated failback.
What happens to our on-premises infrastructure after migration?
We recommend a phased decommissioning plan: maintain on-premises infrastructure for 30-60 days post-migration as a rollback option, then systematically decommission servers after validation. Azure Migrate tracks migration status for every workload, and our operational runbooks document rollback procedures for each wave. Once validated, decommissioning the on-premises infrastructure completes the cost savings realisation.
Still have questions? Our team is ready to help.
Get Your Free Migration AssessmentPlanning an Azure Migration?
Unplanned migrations cost 2-3x more than budgeted. Get a free migration assessment with dependency mapping and cost analysis.
Azure Migration Services — Plan, Execute, Optimise
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