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1 definition found
 for incremental backup
From The Free On-line Dictionary of Computing (18 March 2015) :

  incremental backup
      A kind of backup that copies all files
     which have changed since the date of the previous backup.  The
     first backup of a file system should include all files - a
     "{full backup".  Call this level 0.  The next backup could
     also be a full level 0 backup but it is usually much quicker
     to do a level 1 backup which will include only those files
     which have changed since the level 0 backup.  Together the
     level 0 and level 1 backups will include the latest version of
     every file.  Level 1 backups can be made until, say, the
     backup tape is nearly full, after which we can switch to level
     2.  Each level includes those files which have changed since
     the last backup at a lower level.  The more levels you use,
     the longer it will take to restore the latest version of a
     file (or all files) if you don't know when it was last
     Compare differential backup.

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