Where is my disk space going?

Discussion in 'MacBook Air' started by bobtrotter, Sep 24, 2014.

  1. bobtrotter macrumors newbie

    Sep 23, 2014
    Hey, I am pretty new to the Mac world. Just purchased my first macbook air. As of today I suddenly lost about 8GB in hard disk space. Trying to figure out where it went. I have checked the About This Mac / Disk Space and everything is as it seems. I have also noticed that the "Other" section has increased from 8GB to 20GB in the last few weeks. Is this normal? I haven't downloaded any new apps and haven't really been downloading any media files. Just a bit of web browsing and coding in Xcode (also checked these files). Just wondering how I could of suddenly lost 8GB in space! Hope someone can help. :confused:
  2. maflynn Moderator


    Staff Member

    May 3, 2009
    Download and use OmniDiskSweeper. It will provide a sorted list of what's consuming your space.

    Another option which is more comprehensive is to use this terminal command
    sudo du -d 1 -x -c -g /

    I prefer to redirect it to a text file (this puts it in your Documents folder
    sudo du -d 1 -x -c -g / > ~/Documents/du.txt

    If you're using Time Machine, then some of the space is taken up by local snapshots, i.e., backups on your drive and not an external drive.
  3. bobtrotter thread starter macrumors newbie

    Sep 23, 2014
    Hey, just did that now. Doesn't seem to be anything old but I have just lost another 3/4gb in disk space in the last few minutes! The other folder has also gone from 20gb to 23gb! Seem like my space is being drained.


    Space is definitely being lost to "Other", not sure why though. At this rate I'll be out of space by next week.
  4. chrfr macrumors 604

    Jul 11, 2009
    What was the output of the command in the post above yours? That will give you the detail to find where your space is going.
  5. bobtrotter thread starter macrumors newbie

    Sep 23, 2014
    This was it

    1 /.DocumentRevisions-V100
    1 /.fseventsd
    0 /.PKInstallSandboxManager
    1 /.Spotlight-V100
    0 /.Trashes
    0 /.vol
    10 /Applications
    1 /bin
    0 /cores
    1 /dev
    1 /home
    4 /Library
    1 /net
    0 /Network
    15 /private
    1 /sbin
    5 /System
    14 /Users
    1 /usr
    1 /Volumes
    47 /
    47 total
  6. bobtrotter thread starter macrumors newbie

    Sep 23, 2014
    Fixed it! It was APP/OSx downloads waiting to be installed. Installed them, rebooted and vollia! 13GB back. Thanks for your help, found the problem with omni disk sweeper.
  7. motrek macrumors 68020

    Sep 14, 2012
    I also like a program called "Disk Inventory X". It's shareware and does a good job letting you drill down into what's taking up space.

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