Backing up data rather than copying it

    BACKUP Manager stores files and directories in a single special file
    called a save set.  BACKUP Manager also records in the save set the
    date and time and other information about the files that are backed
    up.

    If you need to protect only a few files, you might find it easier for
    you to simply copy those files to another disk and use the copy of
    the files in the event of a problem.  However, BACKUP Manager is a
    more efficient solution if you need to protect many files, especially
    related files, and if you need to store these files offline.  (Many
    computer centers store backup media off the local site in case of
    site disaster.  This strategy preserves vital information and
    operations can continue with little interruption even in the event of
    catastrophic events.)