Hard drive capacity for time machine

Discussion in 'Mac Apps and Mac App Store' started by NSNick, Jun 30, 2008.

  1. NSNick macrumors regular

    Jun 27, 2008
    Washington D.C.
    Should a time machine hard drive be as big, bigger, or smaller than the drive that it is backing up?
  2. Tallest Skil macrumors P6

    Tallest Skil

    Aug 13, 2006
    1 Geostationary Tower Plaza
    Bigger, at least, than the amount of data you're backing up. By far.
  3. richard.mac macrumors 603


    Feb 2, 2007
    51.50024, -0.12662
    TM makes a complete copy of your hard drive (well pretty much) and then after that every hour it backs up every file that has been modified. i think it should be at least twice the size of your boot hard drive.
  4. macworkerbee macrumors 6502

    Jun 14, 2008
    Agree with the others. Twice the size of the drive you're backing up is ideal. The more space you have to back up the more content you can save against HD failure.

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