OS X disk utility and restoring files: only newer, or always all?

Discussion in 'macOS' started by chem, Nov 16, 2007.

  1. chem macrumors regular

    Jun 9, 2007

    Let's just say I don't want to use Time Machine, or that I'm using 10.4. To make backups, one can use the OS X Disk Utility. Using the "Restore" option, you can clone a volume (the system drive) to a backup volume (an external drive).

    My question is this: if that operation is ~100 GB, and a week later you want to do it again because ~500 MB of files have changed, will the Disk Utility be intelligent enough to only update the newer/changed files when going from the exact same Source to the same Destination? That would be a simple 500 MB update. Or will it insist on copying all 100 GB again?

    thanks. I'd like to know before I try this :p
  2. chem thread starter macrumors regular

    Jun 9, 2007
  3. plinden macrumors 68040


    Apr 8, 2004
    I don't believe Disk Utility does incremental backups.

    I would recommend SuperDuper or CarbonCopyCloner for this ... if you're on Tiger, either would do, but SuperDuper isn't ready for Leopard yet.

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