How does Time Machine work with an external HD?

Discussion in 'Mac Apps and Mac App Store' started by stanny, Oct 3, 2010.

  1. stanny macrumors 6502

    Dec 30, 2008
    I would like to set up Time Machine with an external HD. Is it worth it? Isn't it supposed to be a seamless backup over a network storage? But if I have to keep plugging my external HD in everytime I would like to backup, will that be good enough? Say, I plug in my external HD every 2 weeks, that would give me a good sufficient Time Machine backup? How long does it take?
  2. maril1111 macrumors 68000


    Mar 14, 2010


    Yes time machine is worth it and if you have an NAS (network attached storage) eg. a time capsule you can back up wirelessly.

    You would have to keep your HD plugged in all the time as time machine backups up every hour.

    In your case I would rather use a software like superduper or ccc and clone my HD to the external harddrive every 1-2 weeks.They also allow you to chose what you want to backup.


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