Enabling TRIM causes USB external drives to eject improperly on sleep?

Discussion in 'OS X El Capitan (10.11)' started by JoeTheZombie, Apr 9, 2016.

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  1. JoeTheZombie macrumors newbie

    Joined:
    Mar 17, 2006
    #1
    I have an older Samsung SSD drive, so I purchased this StarTech USB/SATA adapter cable so I could use the drive externally on my late 2013 iMac. I then enabled TRIM using the terminal:
    Code:
    sudo trimforce enable
    This worked, and the drive works well. But as a side effect, it has caused itself, as well as my Seagate Backup Plus Desktop Drive (4TB) to spontaneously eject whenever the computer sleeps. I then get the warnings in notification center that the drives have not been ejected properly.

    I turned off TRIM using the terminal:
    Code:
    sudo trimforce disable
    And just as I thought, I no longer have problems with drive ejection during sleep. Anyone else seeing this? Any workaround?
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #2
    This does not fix your problem, but TRIM does not work over USB, so there is no point in trying to enable it.
     
  3. JoeTheZombie thread starter macrumors newbie

    Joined:
    Mar 17, 2006
    #3
    Ah, thank you. I will keep it disabled then and avoid the issue. :)
     

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