External SSD not ejected properly

Discussion in 'Mac Basics and Help' started by GHBrowC, Jun 23, 2016.

  1. GHBrowC macrumors newbie

    Nov 16, 2014
    I have a new Transcend external SSD I use to store my Lightroom Catalog and develop photos in Lightroom, it's a little faster than on my internal 3TB Fusion Drive.

    For awhile I've been getting the "Disk not ejected properly" warning sometimes after waking the computer from sleep, sometimes while it's already awake.

    If I unplug it and plug it in again it won't appear, and it's not in Disk Utility either. I verified and repaired the disk in Disk Utility but an hour later it happened again. Only after a restart will it mount again.

    What is the problem? Can anyone help me out with this, please?

    Late 2013 iMac 27" 3TB Fusion Drive (over 2TB free) 3.5 GHz i7 16GB, NVIDIA GeForce GTX 780M 4096 MB
  2. Fishrrman macrumors G5


    Feb 20, 2009
    You probably already have done this, but…

    … have you opened the Energy Saver preference pane, and UN-checked the option "Put hard disks to sleep when possible" ….?
  3. GHBrowC thread starter macrumors newbie

    Nov 16, 2014
    Thanks Fishrrman yes I've already done that and it didn't make any difference.

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