Description: An Image Overlay File is a type of file that contains changes made to a base virtual disk image. This file allows users to modify and manage disk images without altering the original image, resulting in a more efficient and secure approach to data management. In the context of virtualization, these files are essential for creating virtual environments. By using overlay files, users can perform tests, software installations, or specific configurations without the risk of damaging the base image. This is particularly useful in development and testing environments, where flexibility and the ability to revert changes easily are required. Additionally, overlay files allow for more efficient storage use, as only the differences are saved instead of duplicating the entire disk image. In summary, image overlay files are essential tools in modern virtualization, providing an effective way to manage and modify virtual disk images without compromising the integrity of the original data.
