The Lift-and-Shift Trap

The most common cloud migration mistake is treating the cloud like a different datacenter. You take everything that's on-premises — the same architecture, the same configurations, the same assumptions — and move it to AWS or Azure. This is called lift-and-shift, and it often produces the worst of both worlds: cloud costs without cloud benefits.

On-premises infrastructure is designed around the constraints of physical hardware you own. The cloud works differently. Compute is elastic. Storage is decoupled. Services are API-driven. If you migrate without rearchitecting for those differences, you'll overpay and underperform.

Do the Assessment First

Before moving anything, you need a clear inventory: what workloads you're running, what their resource consumption actually looks like (not what was provisioned — what's actually being used), what their dependencies are, and what the business requirements are for availability and recovery time.

A workload that runs on a $400/month physical server might cost $800/month in the cloud if you right-size it for peak demand that only occurs two hours a day. Or it might cost $120/month with proper auto-scaling. You won't know without doing the assessment.

Licensing Is Complicated

Microsoft licensing in the cloud is its own discipline. SQL Server licensing on Azure VMs is expensive if you don't have Software Assurance. Windows Server licensing has specific rules about dedicated vs. shared hosts. Bring-Your-Own-License options exist but require careful tracking. Getting this wrong results in audit exposure or dramatically higher costs than projected.

Security Is Your Responsibility

Cloud providers operate on a shared responsibility model. They secure the infrastructure. You secure everything you put on it — your data, your configurations, your access controls, your workloads. A misconfigured S3 bucket or an Azure storage account with public access enabled is your problem, not AWS's or Microsoft's.

Security configuration review should be part of every migration, not an afterthought.

Have an Exit Strategy

Cloud lock-in is real. The more you rely on provider-specific managed services, the more complex and expensive it becomes to move. That doesn't mean avoiding managed services — they're often the right choice — but it means making the decision consciously with eyes open to the dependency you're creating.

JRM360 manages cloud migrations for Florida businesses with full pre-migration assessment, architecture review, and post-migration security hardening. Contact us to discuss your migration.