There is a settled belief that moving to the cloud is always cheaper. It is not. The cloud trades a large up-front investment for a variable monthly cost — and that trade pays off in some situations and not in others. It is worth deciding with numbers.
Four questions before you decide
1. Is the load steady or spiky? If a server sits at 20% utilisation all year and hits 100% twice, the cloud wins: you pay for capacity only when you need it. If the load is stable and predictable, a well-sized server of your own can come out cheaper.
2. What does an hour of downtime cost? This is the question that most often changes the decision. If the business stops when the system stops, the redundancy the cloud offers natively is hard to reproduce with one server in an office.
3. Who administers this today? A local server needs somebody to apply updates, check backups and answer at three in the morning. If that person does not exist, the local server is already costing more than it appears — the cost is just hidden inside the risk.
4. What data is involved? Some information must stay in a given territory, by contract or by regulation. That does not rule out the cloud, but it constrains the region and sometimes the provider.
What belongs in the plan
A migration without a plan turns into a bad week. What we always include:
- A full inventory of what runs today, including the service nobody can explain but somebody uses.
- A migration order, starting with the least critical, so experience is gained at low risk.
- A rollback plan. For each step, how to go back and how long it takes.
- Separate environments. Staging and production, with the same configuration described as code.
- Tested backups. A backup that has never been restored is not a backup; it is a hope.
- Monitoring with a named recipient. An alert that does not reach a specific person is worthless.
Controlling the cost afterwards
The most common mistake does not happen during the migration; it happens six months later. Test environments nobody switched off, disks belonging to deleted machines, snapshots kept indefinitely. The bill creeps up and nobody notices.
The fix is dull and effective: tag every resource by project, review the bill once a month against the list of what was created, and set an alert threshold per environment.
Cloud, hybrid, or neither
For many companies the right answer is not "everything in the cloud". It is hybrid: systems that need to be reachable from outside and that face demand spikes go to the cloud; systems tied to local equipment or a permanent connection stay where they are, with backups replicated off site.
If you would like an honest read on which of those scenarios is yours, an infrastructure assessment is the place to start: inventory, current costs, risks and a recommendation with numbers attached.
