Curious behavior with hard disks from Toshiba 4TB SATA MD04ACA400

Discussion in 'Hard Drives and Solid State Drives' started by zeynel, Feb 10, 2018.

  1. zeynel

    zeynel Active Member

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    Hi at all,

    i running into some strange behavior with those drives.
    First i thought it is the controller , changed it , changed the system , used AHCI SATA Intel chipset ports.
    On every system/combination the same issue.

    strange.JPG

    The drive D has the problem that i cannot enable the write cache of the device itself.

    the second drive has no problem with enabling or disabling it. so i benchmarked drive E with both settings.

    the bench in the middle show with activated write cache , the right one without.

    so the behavior is similar to the left benchmark (drive D).

    i checked the PCB of both drives , the look absolutely identical.

    The Firmware are also the same on all drive. i have 7 of those drive with this issue and 3 without.
    one of the "defective" drives is 9 days old, the other one has run already 510 day but Harddisk Sentinel says 100% excellent status on both drive.

    i tryed also to switch the PCBs, but the drives won't came up in the device manager.

    have anyone of you run into same issues ?

    any ideas ?

    Thanks all in forward.
     
    #1
  2. MiniKnight

    MiniKnight Well-Known Member

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    Did you try the same ports?
     
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  3. Monoman

    Monoman Active Member

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    ouch, I'm running 3 of these in my home lab for years.

    Following.
     
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  4. zeynel

    zeynel Active Member

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    #4
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