Time Machine gobbling up HDD space.

Discussion in 'OS X Mountain Lion (10.8)' started by Micky Do, Dec 6, 2012.

  1. macrumors 6502a

    Micky Do

    Joined:
    Aug 31, 2012
    Location:
    Thailand, for now.
    #1
    Since changing from Snow Leopard to Mountain Lion on my early 2009 Mini free space on the out board back-up HDD has been disappearing rapidly.

    After nearly 3 years of using Time Machine I still had over 240 GB of free space on the dedicated 320 GB back up HDD. In less than three months, since installing OX S 10.8 (and the 10.8.2 update) the free space has gone down to 48 GB.

    My usage has changed very little. The main apps I use are Pages, Numbers, Safari and iTunes. I got a camera and started using iPhoto back in May, but not so much that it made a big difference to the system.

    The 120 GB on board HDD still stands at 86 GB free.

    Has anybody else found the same? What can be done about it?
     
  2. macrumors demi-god

    Zwhaler

    Joined:
    Jun 10, 2006
    #2
    There's a lot of data backed up there. You can always add folders to the "Do Not Back Up" list in TM preferences. My Time Machine backup is almost 4TB.
     
  3. macrumors 6502

    msjones

    Joined:
    Oct 18, 2007
    Location:
    Nottinghamshire, UK
    #3
    Do you run virtual machines on your system? I found that every time you run a VM and the file container increases in size (even if by only a kb) TimeMachine will create a fresh backup of the file. I ended up with over 200GB of the same VM.

    As Zwhaler said I just told TM not to back up the VM folder.
     
  4. thread starter macrumors 6502a

    Micky Do

    Joined:
    Aug 31, 2012
    Location:
    Thailand, for now.
    #4
    Thanks for the replays

    I have added several folders to the do "Do Not back Up" list. Still I noticed this morning it was busy doing an 11 GB back up.... heck there is less than 40 GB of Data on the internal HDD, including OS X 10.8.2, and iWork.

    It looks like it could be backing up whole files, not just the changes.

    What are Vitual Machines? As far as I know I don't run any, but to be honest I don't know much about computers. I just use them, which is why I use Apple.
     

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