Cloud Strategy
Datacenter → Cloud: The 10-Point Checklist and 5 Expensive Myths That Kill Budgets
Executive summary
Budgets hate surprises. Treat cloud as a product with goals, governance, and guardrails—or it becomes a meter you can’t control.
In our experience, lift-and-shift without optimization often costs more than a cloud-native design run with a FinOps cadence. Measure your own baseline before committing to targets.
The 10-point migration checklist
1) State the business case in numbers
- Pick one primary outcome (cost ↓, lead time ↓, or resilience ↑).
- Baseline on-prem TCO: power, space, hw refresh, headcount.
- Define KPIs (lead time, p95 latency against baseline, cost per unit).
2) Map dependencies before moving anything
- Inventory ports, flows, schedules, mounts; group by affinity.
- Prevent chatty cross-env calls that inflate egress and latency.
3) Target cloud-native end-states, not replicas
- Managed LB/DB/queue, object storage over NFS, containerize seams.
- Externalize config/creds; health probes, autoscaling, and policies.
4) Enforce tagging like compliance
Required: owner · env · cost-center · app. Block deploys without tags.
5) Design networking deliberately (where bills hide)
- Plan CIDR once; keep traffic local; minimize inter-zone chatter.
- Audit NAT + inter-region egress monthly with alerts.
6) Lock down identity and access from day 0
- SSO + short-lived creds; no wildcard policies.
- Workload identity for services; split human vs. machine roles.
7) Automate the migration
- IaC + pipelines; reproducible blue/green cutovers.
- Use migration tooling—avoid brittle one-offs.
8) Validate every phase
- Parity tests (p95, throughput, cold starts) and chaos drills.
- Rehearse rollback and time it.
9) Run cutover like a release
- Go/no-go gates, paging matrix, change freeze window.
- Time-boxed steps, auditable timestamps.
10) Publish the win
- Before/after on cost/unit, deploy frequency, reliability.
- Socialize results to fund the next wave.
Five expensive myths
Myth #1: “Lift & shift is cheapest.”
Often cheaper to start, and frequently more costly over time. You inherit every inefficiency and pay per minute. Your platform budget turns into keep-the-lights-on spend.
Myth #2: Costs auto-optimize
Elasticity without governance = auto-sprawl—idle clusters, zombie snapshots, forgotten POCs 💸.
Myth #3: Networking is someone else’s problem
In cloud, everyone affects the bill. Cross-region traffic and NAT egress can add large, unexpected charges.
Myth #4: Migration ends at cutover
In our experience, the first months after cutover are a good time to look for savings: rightsizing, storage lifecycle, commitment planning.
Myth #5: Picking a provider = strategy
Strategy means governance, security baseline, golden paths, and IaC standards—not an account ID.