Cloud migration promises cost savings, scalability, and agility. But the path from on-premises to cloud is littered with failed projects. Here are the five mistakes we see most often — and how to avoid them.
Mistake 1: Lift and Shift Without Rearchitecting
Moving a legacy monolith to a VM in the cloud does not unlock cloud value. You get cloud costs with on-premises performance. The right approach: refactor or replatform workloads for cloud-native services (containers, managed databases, serverless).
Mistake 2: No Landing Zone Before Migration
A cloud landing zone is your foundation — network architecture, identity management, security guardrails, cost tagging standards. Teams that skip this spend months retrofitting governance after the fact.
Mistake 3: Migrating Everything at Once
A big-bang migration is high risk. The most successful projects use a wave-based approach: migrate low-risk, low-dependency workloads first to build team confidence, then tackle critical systems.
Mistake 4: Underestimating Data Transfer Costs
Egress fees are invisible until your first bill. Map every data flow before migration. Design to keep data movement within regions and within your cloud provider's network wherever possible.
Mistake 5: No Cloud FinOps Practice
Most organisations overspend by 30–40% in their first year because no one owns cloud cost governance. Set up billing alerts, right-size instances at 30 days, and implement auto-scaling policies from day one.
The Aaitek Migration Approach
We run a 4-week Cloud Readiness Assessment that maps your application portfolio, estimates migration complexity, and produces a phased roadmap with business case calculations. Every migration starts with evidence, not assumptions.
