Differences between snapshot, baseline, and incremental backups

    The differences between snapshot, baseline, and incremental backups are
    as follows:

    Type of backup   Description
    --------------   -----------
    Snapshot         A snapshot backup saves a snapshot copy of all the
                     files you specify.  The information needed to
                     rebuild the files is stored in a save set file but
                     the date and time are not recorded in each file.
                     This allows for faster backing up of information but
                     does not allow for a backup strategy that involves
                     incremental backups.

    Baseline         A baseline backup saves a copy of all the files you
                     specify, providing a baseline for incremental
                     backups.  Backup dates and times are updated in each
                     new or changed file during incremental backups.  The
                     information needed to rebuild the files is stored in
                     a save set file.

    Incremental      An incremental backup saves only those files you
                     specify that have been created or modified since the
                     most recent baseline or incremental backup operation.
                     Backup dates and times are updated in each new or
                     changed file during incremental backups.
                     Incremental backups save space and are used in
                     conjunction with baseline backups to recover from
                     unexpected data loss.