Cloud strategy: cost, flexibility, control

It is considered settled that the cloud is the only right way to build IT infrastructure. The main arguments: cost and flexibility. Both deserve a closer look – especially now that repatriation debates and sovereignty requirements are reviving the discussion.

Cost

The biggest difference between your own data centre and a cloud-based one is initial versus running cost. Your own data centre demands significant upfront investment, depreciated over years. The cloud has no initial cost but bills by the minute.

Over a longer period, with steady and well-utilised load, your own infrastructure is frequently cheaper. The old rule still holds: when you shift responsibility – in the cloud’s case, responsibility for physical infrastructure – you pay for it. The cloud is an investment in flexibility, not a savings programme.

Flexibility

The weakness of the owned data centre is the planning horizon. One to two years is what can realistically be planned today – but investments in your own hardware run far longer. This is where the cloud shines: it adapts to your requirements at any time, and even planning mistakes can be corrected quickly and cheaply.

Security and control

The cloud’s biggest challenge remains security – and increasingly sovereignty. Shared hardware carries risks from hardware-level vulnerabilities that only the operator can fix. Add regulatory requirements on data location and access control, which depending on your industry narrow the room for manoeuvre considerably.

The hybrid middle way

A proven middle way is the hybrid cloud: an owned core for mission-critical data and processes, directly connected to a cloud that scales on demand. This requires know-how on both sides – and above all a strategy that clearly defines which data and processes may live and run where. That strategy, not the technology, is where most cloud projects are decided.