VMware Mirage is used to centrally manage VMWare systems of your clients/employees. They install the operating system and the Mirage program inside VMWare. All the files are then compared and synced to your Server system. When a user makes some changes, such as installing a new program, the data are synced with the server. If all the users have the same data, a single copy is present in the server. This reduces disk usage and improves the speed.