Save sets When you save files with BACKUP Manager, the files are written to a single, special file called a save set. Save set names on tape can have up to 17 characters, including the period delimiter (.) and file type; save set names on disk can have up to 53 characters, including the period delimiter (.) and file type. (Note: BACKUP Manager allows you to enter file names of only up to 53 characters.) The following example is a valid save set specification: WKLY27JUN1994.BCK Do not specify a directory name for the save set; save sets use the [000000] directory.