Free/Used hard drive space weirdness?

Discussion in 'Mac OS X Lion (10.7)' started by Eradik, Aug 21, 2011.

  1. Eradik macrumors regular

    Joined:
    Jul 10, 2011
    Location:
    Pacific Northwest
    #1
    So I don't know whats going on with my MacBook Pro. I'm running OS X 10.7.1.

    It all started with iStat Menus. I had hard drive usage turned on and my free space is listed around 237 GB.

    I checked the Finder (after turning the status bar back on) and it lists 306 GB free.

    I went into About This Mac and clicked storage, and it's reporting 253 GB free.

    Ummm.... what? I'm a bit confused. Anyone had this happen to them? I get iStat Menus being wrong because it is a third party program. But Finder/About both being different (and such a wide range different!)?

    Any ideas?
     
  2. paulsalter macrumors 68000

    paulsalter

    Joined:
    Aug 10, 2008
    Location:
    UK
    #2
    the difference between iStat menus and the mac could be the way disk space is calculated (SL/Lion use base 10, most things use base 2)

    in the about this Mac section, does it show an amount under backup, this could be the differences as I believe this is only temp used while the mac has the space
     
  3. Eradik thread starter macrumors regular

    Joined:
    Jul 10, 2011
    Location:
    Pacific Northwest
    #3
    Thank you. It does appear that there is a backup calculated in About my Mac which, when left out, makes it balance out when subtracted from my total space and it matches what Finder says.

    I found an option to turn on Base 10 in iStat and it now matches About my Mac.

    Didn't know about backups.

    THANK YOU! :)
     

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