Scale in

Glossary

"Scale in"

Explain what scale-in means.

What is scale-in?

Scaling in is a method of optimizing resources by reducing the number of servers and lowering the processing power of the entire server system. This method is usually applied when it is determined that the system has spare processing capacity and is in a resource overload situation. Scaling in can reduce operational costs. In addition to reducing the number of physical servers in a regular server system, scaling in can also include reducing the number of virtual machines in a cloud environment.

The opposite of scaling in is scaling out, which increases the number of servers to improve the processing power and availability of the entire system. By using either scaling in or scaling out depending on the situation, you can always maintain the minimum necessary server resources.

In addition, there is also a technique called scaling down, which involves optimizing by downgrading the server's CPU and reducing memory rather than reducing the number of servers.

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