Intelligent cloning

Discussion in 'Mac Apps and Mac App Store' started by Macnoviz, Aug 27, 2010.

  1. Macnoviz macrumors 65816

    Macnoviz

    Joined:
    Jan 10, 2006
    Location:
    Roeselare, Belgium
    #1
    Hi,

    I have an external hard drive with lots of media files, and now I backed this up to an identical external hard drive.

    I wanted to use Carbon Copy Cloner to mirror any changes made in the original hard drive, but I have now tried this for the first time, after having moved some files around. Now instead of moving those files on the other hard drive, CCC just copied these files from the original hard drive, something that takes much longer.

    Is there any program that could do this more intelligently? (moving files on the backup drive instead of copying them over from the original drive again?)

    Thanks a lot!!
     
  2. angelwatt Moderator emeritus

    angelwatt

    Joined:
    Aug 16, 2005
    Location:
    USA
    #2
    As long as you set it correctly, CCC will only copy what's different.
     
  3. Macnoviz thread starter macrumors 65816

    Macnoviz

    Joined:
    Jan 10, 2006
    Location:
    Roeselare, Belgium
    #3
    yes, copy, but it doesn't notice that the data is already there, but in a different place, so if I move a 100-GB folder to a subfolder, CCC deletes it in the old location and copies it from the source disk again (which takes about half an hour, instead of seconds when you move it manualy)
     
  4. angelwatt Moderator emeritus

    angelwatt

    Joined:
    Aug 16, 2005
    Location:
    USA
    #4
    I don't know of any program that will simply notice some has moved and not re-copy. Programs simply aren't that smart. It may seem obvious from the human perspective, but from a machine perspective this is a very difficult thing to do. It doesn't know if the moved stuff should be copied or is completely new. Programs look at things in a very black and white way. File wasn't in folder, so deletes file in destination. File has been updated, so will copy new.
     
  5. FourCandles macrumors 6502a

    Joined:
    Feb 10, 2009
    Location:
    England
    #5
    A Subversion server will do exactly what you're after - move files on the remote system rather than delete an copy again - but that's a whole different ball game from a local backup solution.
     

Share This Page