FinOps

What it means

FinOps is the practice of managing cloud costs in which IT, finance and management jointly track usage, allocate costs to teams and look for savings, such as idle servers. The aim is to keep cloud bills from growing unchecked and make every euro deliver value.

Cloud is paid for by consumption, which is good for flexibility but easily leads to unexpected costs. A developer can launch an expensive server with one click and forget to switch it off, and without monitoring this only shows up on the invoice at month end.

FinOps rests on three phases: inform, meaning transparent cost allocation; optimise, meaning finding savings; and operate, meaning putting rules and ongoing management in place. It is more a culture of collaboration than a specific tool.

How it works in practice

The foundation is tagging cloud resources by project, team or environment so costs can be assigned to cost centres. Teams then see what their applications cost and can make decisions with cost in mind.

Typical savings come from switching off test environments outside working hours, rightsizing oversized servers, discounted long-term usage commitments and moving data to cheaper storage tiers. For some applications, moving to serverless solutions helps.

Finance needs a different approach to the budget for cloud than for traditional investments. Instead of a one-off server purchase, these are variable operating costs to be planned according to expected usage and reviewed monthly.

What to watch out for

Savings must not compromise security and availability. Turning off backups or reducing redundancy may save money but becomes expensive in an outage. Optimisation should respect requirements for availability and data recovery.

Discounted long-term commitments lower the price but tie the company to the provider and increase the risk of vendor lock-in. Before committing, estimate actual long-term usage and consider any plans to change the architecture.