Over-Provisioning for SSDs

Discussion in 'SSD Optimization Guide' started by OS-Wiz, Feb 10, 2012.

  1. The SSD Guy

    The SSD Guy Administrator Staff Member

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    What is ther capacity of the drive? What is the drive/
     
  2. mlauzon

    mlauzon New Member

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    It's a Plextor M5P(ro) Xtreme 512GB w/ v1.05 -- it had an earlier version when I bought it -- firmware...don't want to upgrade to v1.06 because people are reporting problems yet Plextor is keeping its mouth shut.
     
  3. renosablast

    renosablast Moderator Staff Member

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    If using Windows, click on the Windows orb, right click on "Computer", then click on "Manage". In the left pane of the window that comes up, click on "disk management" under the Storage section and a graphic representation of your drive(s) is shown. The "unallocated area" is usually the overprovisioning area. The SS9187 Marvell controller itself in the M5Pro requires a certain minimum amount of overprovisioning area to facilitate its operation, and then the customized firmware from Plextor's own in-house team will undoubtedly account for any additional overprovisioning needed to attempt to maximize long-term performance.

    Plextor also has its own SSD toolbox called Plextool. One of the functions available is overprovisioning, should you choose to set your own OP amount
    Here is link to the Plextool download:

    http://www.goplextor.com/asia/index.php/download?task=viewcategory&catid=169
     
  4. mlauzon

    mlauzon New Member

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    I followed your instructions, my disk is fully taken, one by the system reserve, and the other by Windows.

    So, should I over-provision the drive, and if so, how, because I don't know how to use the aforementioned tool.
     
  5. renosablast

    renosablast Moderator Staff Member

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    What is the total GB of the "system reserved" and main partition showing in disk management? If this total is less than 512GB (and it should be), the difference is being utilized for controller overhead and non-user accessible over-provisioning. This is why many SSDs have two capacity measurements -- one is total capacity and the other is user capacity.
     
  6. mlauzon

    mlauzon New Member

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  7. Sean Webster

    Sean Webster Das Schweebie Staff Member

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    You dont need to over provision. But if you want to all you need to do is just shrink the C partition by right clicking it in disk management, click shrink volume, and enter the amount by which you want to shrink it.

    EX:
    vTOfAkw.png

    tM0Dm5D.png

    After you do that there will be virtual unallocated space on the drive, thus over provisioned.
     
  8. shelialx60

    shelialx60 New Member

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