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Thread: Read this thread if you own a Western Digital "Green" HDD.

  1. #31
    is this good external hard drive:

    WESTERN DIGITAL WDBYVG0020BRD
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  2. #32
    Moderator anon's Avatar
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    The issues with Western Digital's aggressive power management are all workable as long as you follow the advice in this thread. For an external disk, you'll have to use idle3ctl under Linux instead of WDIDLE3, since USB support for DOS is fickle and you may not even be able to boot it to begin with (modern motherboards no longer have BIOS interrupts or a compatibility module).
    "I just remembered something that happened a long time ago."
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  3. #33
    Moderator anon's Avatar
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    I found this, but don't currently have an affected disk at hand, so feedback is welcome. openSeaChest is available for Linux and Windows and can be downloaded at https://github.com/Seagate/openSeaChest.

    For Seagate drives with PowerChoice technology, tricks setting APM via hdparm will not work due to the EPC (Extended Power Conditions) feature. Rather than setting APM, you can install openseachestAUR and fully disable EPC like so (replace X with actual drive letter):

    Code:
    # openSeaChest_PowerControl --scan
    # openSeaChest_PowerControl -d /dev/sdX -i
    # openSeaChest_PowerControl -d /dev/sdX --showEPCSettings
    # openSeaChest_PowerControl -d /dev/sdX --EPCfeature disable
    # openSeaChest_PowerControl -d /dev/sdX --showEPCSettings
    Last invocation will give the following summary:

    Code:
    ==========================================================================================
     openSeaChest_PowerControl - openSeaChest drive utilities - NVMe Enabled
     Copyright (c) 2014-2023 Seagate Technology LLC and/or its Affiliates, All Rights Reserved
     openSeaChest_PowerControl Version: 3.3.1-4_1_1 X86_64
     Build Date: Jul  4 2023
     Today: Tue Jul  4 17:49:36 2023        User: root
    ==========================================================================================
    
    /dev/sdX - ST1000NM0008-2F2100 - ZFA19JG2 - SN02 - ATA
    
    
    ===EPC Settings===
            * = timer is enabled
            C column = Changeable
            S column = Savable
            All times are in 100 milliseconds
    
    Name       Current Timer Default Timer Saved Timer   Recovery Time C S
    Idle A      0            *10           *10           1             Y Y
    Idle B      0            *1200         *1200         3             Y Y
    Idle C      0             6000          6000         16            Y Y
    Standby Z   0             9000          9000         46            Y Y
    Zeroes in the first column confirm that parking and spindown were disabled successfully
    "I just remembered something that happened a long time ago."
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  4. Who Said Thanks:

    Instab (11.01.24)

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