A Brückner film stretching line is built to last for decades. But what about the line’s “brains”, the hardware and software which form the basis of its sophisticated process control system? Due the developments within their industry, these components, such as servers, PC work stations and versions of operating systems and application software, show a shorter life cycle than other parts of the machine.
Any software installation can be saved as a backup and then restored later on compatible hardware. But this is the key point: after only a few years it is common for newly acquired hardware to be not 100% compatible anymore, so that simply restoring a backup will not work. If this is the case, then a complete manual re-installation from scratch is the only way to solve the problem.
However, as soon as the operating system originally supplied fails to run on newer hardware (usually because drivers are missing), you will have to consider other solutions. This is the situation where the concept of “computer virtualization” appears on the scene.