Time Machine, Snow Leopard, and backing up documents

Discussion in 'Mac Basics and Help' started by iceblade, Jun 22, 2011.

  1. iceblade macrumors member

    Joined:
    Jun 17, 2008
    #1
    About a month and a half ago I got a 1 TB external HDD that I have been using as a Time Machine drive. However, two issues have arisen. The first is, I am running out of internal HDD space -- I have less than a gig! The second is, I am interested in upgrading to Snow Leopard.

    I need more space on my internal HDD, obviously. To accomplish that, I was thinking I could backup school documents, pictures, and video to a separate partition on the HDD. That way, I don't have to restore my computer to a previous backup every time I want to access those files. However, that caused the question to arise, does Time Machine back up simply things that have been changed, who does it make a whole new 'copy' of my HDD each time it backs it up? In other words, will it eat external HDD space 150 gigs at a time, or by, say, a gig at a time? Clearly, I don't have a very good understanding of how Time Machine works.

    The last question regards my Snow Leopard upgrade. Can I restore my computer to Snow Leopard using a Leopard time machine (assuming the upgrade doesn't work correctly in the setup)?

    I hope that all makes sense. If not, let me know, and I will attempt to clarify it.

    Thanks!
     
  2. alust2013 macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #2
    Time machine is incremental backups, it will take up the full size of your internal drive, plus a bit more for each backup. It will just delete the old stuff when it runs out of space. You also can't restore a backup from a different version of OS X.
     

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