Restoring a volume to eliminate disk fragmentation During the course of creating, deleting, and modifying files, a disk can have sections of files scattered across it. The files, though scattered, are linked by software so that a file appears contiguous when it is displayed for you. Eventually the disk can become severely fragmented, and system performance suffers. When a disk stores files contiguously, system performance improves, and the wear and tear on the disk mechanisms is minimized because fewer searches are performed for the sections of a file. When you restore a volume from a save set, BACKUP Manager places the files contiguously on the disk. To eliminate disk fragmentation, you can perform a backup of the disk and restore the backup copy.