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  1. #1


    Member Since
    Jan 12, 2013
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    4
    Disk Size Error Note
    hi, a few days ago, I noticed that the size of my startup disk was not reflected clearly in the number / size of the files that finder was counting. I'll include a picture to make this more clear, but basically, finder thinks that my disk has about 20+ gigs more files than what I am counting. Just wondering if there is any way for me to remedy this since it is annoying to turn my mac on and find that 'your startup disk is almost full' message.

    as you can see from the picture above, finder is counting ~120 gigs of files, whereas time machine is only counting ~100. What's even more odd is the fact that when i count up my 4 system created folders, the total only ~90 gigs. Has anyone seen this before? / know what it means?
    Attached Images Attached Images

  2. #2

    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Location
    UK
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    6,907
    Specs:
    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Pro 9.7, AppleTV (4)
    Time machine doesn't backup temp files, sleep files etc. That's the descrepancy you're seeing.

    Try using an app like Disk Inventory X to visually show your disk usage.

    Either way, I'd clear one space. You could really do with maintaining about 10-20% free space for best performance
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  3. #3


    Member Since
    Jan 12, 2013
    Posts
    4
    disk error x doesn't work. i have osx lion. maybe this is why?

  4. #4


    Member Since
    Jan 12, 2013
    Posts
    4
    ok. so i found a hidden file script here:
    Show hidden files Mac OS X 10.7 Lion and 10.8 Mountain Lion - The home of Mike Hudson
    and i used it to show hidden files in finder
    i found out that i have a 17 gig sleep image file located in
    private/var/vm
    any ideas as to what this might be?

  5. #5

    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Location
    UK
    Posts
    6,907
    Specs:
    27" iMac i7 (2011) 10.11, Mac Mini i5 (2014), iPhone6s, Apple Watch, iPad Pro 9.7, AppleTV (4)
    You could try Grand Perspective instead.

    The sleep image is just that. The storage used to dump the contents of you're working memory when your Mac sleeps. It should be roughly the size of your RAM but it can grow over time.

    You can delete it from terminal with this:

    sudo rm /private/var/vm/sleepimage

    It'll be recreated but not at 17gb
    Not been around these parts for a while. Trying to change that . .

    Please use the reputation system if you think you've been helped - bottom left of this post

  6. #6


    Member Since
    Jan 12, 2013
    Posts
    4
    Sweet. it worked. thanks a bunch

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