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  1. #16

    Slydude's Avatar
    Member Since
    Nov 16, 2009
    North Louisiana, USA
    2.8 GHz MacBook Pro 10.11, 8 GB mem, iPhone 6+
    Quote Originally Posted by harryb2448 View Post
    Sly if SMARTReporter is indicating a failing drive, simply don't trust the drive.
    I don't. That's what prompted the purchase of the SSD.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  2. #17

    Exodist's Avatar
    Member Since
    Nov 26, 2012
    Agusan del Norte, Philippines
    L2012 Mini, i7 2.6Ghz, 8GB RAM, 256GB SSD + 1TB HDD(fusion), BenQ 32" 2.5k QHD Display
    Yea if you getting Bad Blocks, regardless of what SMART is reporting. Then the drive may not directly be failing, but just getting wore out/ old. If they makes sense.

    So yea SSD that bad boy and breath some new life into your machine. Warning though.. Once you get a SSD you will never want to use a regular HDD as your system drive again..

    Joe's Photo & Video Channel on YouTube
    Lightroom, Photoshop, FCP, Gear Reviews and more...
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  3. #18

    MacInWin's Avatar
    Member Since
    Jul 07, 2008
    Winchester, VA
    2011 MBP, 2008 iMac, iPhone 6, iPad mini, 13" MBP, AppleTV and MacMini
    Quote Originally Posted by Exodist View Post
    The reason a HDD slows down is due to the placement of the data on the platers of the HDD. When data first gets placed on the drive, it is placed to the center of the drive. Thus when the arm that holds the read/write heads moves, it has a shorter distance to move to gather the data. When it has to move to the outside of the platters the segments are generally spaced further apart due to rotation speed and it takes the drive longer to find and move the data.

    A SSD on the other hand, it just RAM chips and no mechanical slow downs are present..

    Hope this explains..
    Actually, modern drives use Zone Bit Recording (ZBR) which adds more blocks to tracks further from the spindle. Instead of having the same number of blocks on each track, the longer tracks at the outer edge have more blocks, hence more data. The tracks are grouped in zones of adjacent tracks and the number of block in the zone increases from the center out by zone. The object is to have the bits/second remain relatively constant as the heads move from the faster outer tracks to the slower inner tracks.

    As a result of this technology, the fastest transfers from disks now occur on the outer tracks, so the drives use the space there first, then move inward to where there are fewer zones and slower data transfers. The tracks are all the same distance apart, so the fact that outer tracks have more data in them mean that the heads can sit on one track longer, reducing the total time to transfer because there are fewer head movements on the outer tracks.

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