What does the use of virtualization in IT save on?

The use of virtualization in IT primarily saves on space and cost. Virtualization allows multiple virtual machines to run on a single physical server, which maximizes the use of hardware resources and reduces the number of physical machines needed. This leads to a more efficient use of space in data centers, as fewer physical servers occupy less room and require less equipment like cooling systems and electrical infrastructure.

In terms of cost, virtualization can significantly lower expenses associated with hardware acquisition, maintenance, and operational costs. Since fewer servers are required, organizations can cut down on physical infrastructure investments as well as associated power and cooling costs. The consolidation of resources also allows for better management of workloads and can lead to improved scalability without the need for purchasing additional physical servers.

While other options, such as time and speed of execution or energy consumption, can be related benefits of virtualization, the most direct and notable savings are indeed in space and cost. Data integrity, while crucial, is not directly tied to the virtualization process itself; instead, it refers to the accuracy and consistency of data across its lifecycle.