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  1. #1

    northrnchimp's Avatar
    Member Since
    Jun 13, 2010
    Location
    England
    Posts
    217
    Specs:
    rMBP 13 2.5GHz 121GB SSD
    128GB Apple SSD actually 121GB
    Just got delivery of a rMBP 13, and I'm loving it, except for one thing which I feel a bit swindled by - Apple advertise that it comes with a 128GB hard drive, and yet it's actually only 121. That's false advertising, surely?

  2. #2

    wwlad's Avatar
    Member Since
    Sep 06, 2012
    Location
    Sydney Australia
    Posts
    54
    Specs:
    Macbook 2010 2.4GHz 2GB 10.8.1 iPhone 3GS
    Is it 121GB total or 121GB available?

  3. #3

    northrnchimp's Avatar
    Member Since
    Jun 13, 2010
    Location
    England
    Posts
    217
    Specs:
    rMBP 13 2.5GHz 121GB SSD
    Total, as reported in Disk Utility

  4. #4

    wwlad's Avatar
    Member Since
    Sep 06, 2012
    Location
    Sydney Australia
    Posts
    54
    Specs:
    Macbook 2010 2.4GHz 2GB 10.8.1 iPhone 3GS
    That is unexpected. I would have expected the total to be close to 128GB (expect depending on how it is expressed). I would some of this to be used for the FAT etc, leaving a bit less than the 128GB available for use.
    Have you partitioned the hard drive?

  5. #5

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,529
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    look up SSD over-provisioning

    and

    OS X recovery partition - hidden, even to Disk Utility
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  6. #6

    northrnchimp's Avatar
    Member Since
    Jun 13, 2010
    Location
    England
    Posts
    217
    Specs:
    rMBP 13 2.5GHz 121GB SSD
    No, I haven't partitioned it, this is straight from the factory.

    That figure includes the recovery partition, which is only 650MB:

    Capacity: 121.33 GB (121,332,826,112 bytes)
    Model: APPLE SSD SM128E
    Revision: CXM09A1Q
    Serial Number: S0XDNYACA57234
    Native Command Queuing: Yes
    Queue Depth: 32
    Removable Media: No
    Detachable Drive: No
    BSD Name: disk0
    Medium Type: Solid State
    TRIM Support: Yes
    Partition Map Type: GPT (GUID Partition Table)
    S.M.A.R.T. status: Verified
    Volumes:
    disk0s1:
    Capacity: 209.7 MB (209,715,200 bytes)
    BSD Name: disk0s1
    Content: EFI
    Macintosh HD:
    Capacity: 120.47 GB (120,473,067,520 bytes)
    Available: 26.09 GB (26,093,563,904 bytes)
    Writable: Yes
    File System: Journaled HFS+
    BSD Name: disk0s2
    Mount Point: /
    Content: Apple_HFS
    Volume UUID: 3AAEBA4D-3FF8-3459-AB49-C6636C6A1CCC
    Recovery HD:
    Capacity: 650 MB (650,002,432 bytes)
    BSD Name: disk0s3
    Content: Apple_Boot
    Volume UUID: D3CCC0D6-DCB5-39F7-969F-9A2BD0432734

  7. #7

    northrnchimp's Avatar
    Member Since
    Jun 13, 2010
    Location
    England
    Posts
    217
    Specs:
    rMBP 13 2.5GHz 121GB SSD
    Over-provisioning does seem to explain it, which is fine if that's what's required for the disk to function optimally, but in that case Apple need to explain this discrepancy more openly perhaps?

  8. #8

    bobtomay's Avatar
    Member Since
    Dec 22, 2006
    Location
    Texas, where else?
    Posts
    26,529
    Specs:
    15" MBP '06 2.33 C2D 4GB 10.7; 13" MBA '14 1.8 i7 8GB 10.11; 21" iMac '13 2.9 i5 8GB 10.11; 6S
    You would need to get the drive manufacturers to change the way they promote their drives - this is not an Apple thing - it is every hard drive manufacturer on the planet.

    This has been an issue of drive reporting size since we have had hard drives.
    It is nothing new. Also search "Hard drives Base 2 vs Base 10".
    I cannot be held responsible for the things that come out of my mouth.
    In the Windows world, most everything folks don't understand is called a virus.

  9. #9

    wwlad's Avatar
    Member Since
    Sep 06, 2012
    Location
    Sydney Australia
    Posts
    54
    Specs:
    Macbook 2010 2.4GHz 2GB 10.8.1 iPhone 3GS
    Detailed explanation of both: Write amplification - Wikipedia, the free encyclopedia, if interested.

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