64gb model only 60gb actual capacity?

Discussion in 'MacBook Air' started by soldierblue, Oct 26, 2010.

  1. macrumors 6502

    Joined:
    Mar 23, 2009
    #1
    Like, as in formatted capacity. Does that sound right or did I get one with faulty flash storage?
     
  2. macrumors 601

    alust2013

    Joined:
    Feb 6, 2010
    Location:
    On the fence
    #2
    That sounds about right. Formatting takes a good bit of space away
     
  3. macrumors 6502a

    Joined:
    Mar 24, 2008
    #3
    That is correct. 64GB is normally about 59GB usable space.
     
  4. macrumors 6502

    Joined:
    Oct 30, 2007
    Location:
    Netherlands
    #4
    This is normal. Be happy, In my former MBA REV.A with 64GB SSD It actually only had something like 55GB. real storage.

    With kind regards,
    Bas
     
  5. macrumors 6502

    EspressoLove

    Joined:
    Jun 29, 2007
    Location:
    Bay Area
    #5
    It's not formatting, it's the way flash drives (SSD) always end up (at least with Apple).
    You just fine, 128Gb amounts to 121.33Gb is sys profiler.
    And IIRC original Airs had something around 55Gb :D
     
  6. thread starter macrumors 6502

    Joined:
    Mar 23, 2009
    #6
    Sweet, thanks guys.
     
  7. macrumors 65816

    Joined:
    Jan 9, 2007
    #7
    It also doesn't help that Apple uses base-2 GB for their specs and the Finder displays it in base-10 GB.
     
  8. macrumors 6502

    Joined:
    Jun 15, 2007
    Location:
    Seattle, WA
    #8
    Formatted capacity is always less.

    This is true for any computer.
     
  9. macrumors 6502

    happyslayer

    Joined:
    Feb 3, 2008
    Location:
    Glendale, AZ
    #9
    Also, I remember reading somewhere - probably Anandtech or StorageReview.com - that SSD drives REQUIRE part of the drive for temp storage when doing writes to the drive. So part of the drive is being used by the SSD controller to put data while it waits to fill the correct size block. I know I probably said that wrong and that there is a pretty complex algorithm involved with SSD data reads and writes, but that is the gist of it.

    So to sum up... it's normal for SSD's to use that much space when formatted.

    Later,
     

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