Infrastructure impact

The size of server images have increased over time; large server images take a long time to deploy and configure, especially when you work with virtual machines.

Storing and maintaining virtual machine templates requires too much disk space, when it comes to mobility by moving virtual machines around using live migration. Thus, it will require a lot of network bandwidth as well.

With full blown server images, the infrastructure requires too many resources; if the operating system consumes fewer resources, you can increase virtual machines' density, and with higher VM density, you can lower the cost and increase efficiency in your environment.