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Q: "Disk Not Ejected Properly" error after EL Capitan goes to sleep and wakes up again.

Hi, community.

 

On public launch day, I upgraded my Macs (Mid 2010 MacBook Pro 15", Mid 2012 MacBook Peo 15", Late 2011 MacBook Air and a Mid 2010 Mac Pro) to OS X El Capitan. In general terms, the upgrade process went smooth.

 

But, I've been presenting an annoying problem:

 

Each time any of my computers go to sleep, if they have an external hard drive connected to an external USB Hub (unpowered), they present a "Disk Not Ejected Properly" error after they wake up again.

 

I didn't have any of these issues with Lion, Mountain Lion, Mavericks nor Yosemite! Only now, when I upgraded to El Capitan, things are getting annoying.

 

Does any one else present the same issues and, do you have a solution to this problem.

 

Thanks for reading.

MacBook Pro, OS X El Capitan (10.11)

Posted on Oct 2, 2015 9:38 PM

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Q: "Disk Not Ejected Properly" error after EL Capitan goes to sleep and wakes up again.

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  • by mathfrank,

    mathfrank mathfrank Oct 6, 2015 3:26 PM in response to goye
    Level 1 (0 points)
    Oct 6, 2015 3:26 PM in response to goye

    I have had this same problem with my 27" iMac and 4GB WD My Book Studio since Yosemite.  I've since upgraded to El Capitan hoping that this would fix the problem, but to no avail.  I have tried lots of suggestions found elsewhere (disabling Spotlight on the device, resetting the PRAM, etc, etc) but nothing seems to work.

     

    It also does not need to be going to sleep for this to be a problem - it will drop the device in the middle of working at the computer.  The worst is when I am working on my Photos library which is housed on the device and the device drops.  In such an occasion the Photos library gets corrupted and needs to be repaired... I am at my wits end and I really hope someone can offer a suggestion to fix this problem.

  • by finepiks,

    finepiks finepiks Oct 6, 2015 9:18 PM in response to goye
    Level 1 (48 points)
    iTunes
    Oct 6, 2015 9:18 PM in response to goye

    Same here. Never had the issue with Yosemite, but not suffering disconnects while using. Drives still showing in finder so they're still mounted.

  • by captaingyro,

    captaingyro captaingyro Oct 7, 2015 3:32 AM in response to goye
    Level 1 (0 points)
    Oct 7, 2015 3:32 AM in response to goye

    Same here...didn't happen prior to the El Capitan upgrade. It only seems to happen when the Mac goes to sleep, and it seems to happen multiple times during sleep, as if the computer was waking for some task, then going back to sleep. When I wake it, there are multiple "not ejected properly" notifications neatly lined up on the screen. Nothing seems to be wrong with the disk...it's always available and working fine.

  • by Looeewoo,

    Looeewoo Looeewoo Oct 9, 2015 7:56 AM in response to goye
    Level 1 (0 points)
    Oct 9, 2015 7:56 AM in response to goye

    I have the same problem since El Capitan. Happens constantly when I'm working in Lightroom or Photoshop. HDDs are plugged directly into the Macbook's USB ports.

     

    If I wind up with a pile of corrupted images I'll be well p*ssed off.

     

    How can Apple allow this to continue for so long, and be unable to correct it over so many versions?

  • by rboko,

    rboko rboko Oct 9, 2015 11:39 AM in response to goye
    Level 1 (5 points)
    Mac OS X
    Oct 9, 2015 11:39 AM in response to goye

    I have the same issue on my new MacBook Pro, never had the problem before El Capitan.

     

    However, some people report that the disk reconnects after sleep. Mine does not. This means my backups after being ejected improperly, do not reconnect after sleep. So I'm not getting backups. This is a major problem. I'm hoping my backups are not getting corrupted. A bad thing to have to hope for the best.

     

    I use three different external portable drives to backup. Same problem on all of them - Seagate and WD.

     

    A bug that disables backups and perhaps corrupts backups IS A PROBLEM!!

  • by madNbad,

    madNbad madNbad Oct 11, 2015 9:13 AM in response to goye
    Level 1 (10 points)
    Oct 11, 2015 9:13 AM in response to goye

    I'm using a 3 TB D2 Quadra linked directly to my late 2012 iMac with a USB 3.0 cable and this setup has been problem free for three years until El Capitan.  Time Machine backups seem to be ok but I also use Super Duper to back up the entire disk on a regular schedule.  Lately on wake up there is the "Disk Not Ejected Properly" warning and no back up has taken place.  I have tried a number of other "fixes", updating the driver, using Disk First Aid but nothing seems to work.  I'm going to try using a Firewire 800 cable and see if that makes any difference.  Hopefully this problem will be corrected shortly.

  • by Eric Root,Apple recommended

    Eric Root Eric Root Oct 11, 2015 2:51 PM in response to goye
    Level 9 (69,813 points)
    iTunes
    Oct 11, 2015 2:51 PM in response to goye
  • by rronanm,Apple recommended

    rronanm rronanm Oct 18, 2015 7:48 PM in response to goye
    Level 1 (5 points)
    Oct 18, 2015 7:48 PM in response to goye

    SMC reset worked to solve it for me (MBP Retina, late 2013) - Resetting the System Management Controller (SMC) on your Mac - Apple Support

  • by rboko,

    rboko rboko Oct 19, 2015 1:27 PM in response to rronanm
    Level 1 (5 points)
    Mac OS X
    Oct 19, 2015 1:27 PM in response to rronanm

    Thanks! Resetting SMC worked for my MBP Retina also.

     

    Did not think it was necessary with a brand new (3 day old) MBP. So far, so good.

  • by rboko,

    rboko rboko Oct 19, 2015 6:07 PM in response to rronanm
    Level 1 (5 points)
    Mac OS X
    Oct 19, 2015 6:07 PM in response to rronanm

    I spoke prematurely. Resetting SMC worked only in testing and putting the MBP Retina to sleep for a few minutes. When I returned to my office after lunch, I got the same "Disk Not Ejected Properly" message. This never happened before El Capitan, nor on my last two MB Airs, in the past five years.

  • by Jim Bridger,

    Jim Bridger Jim Bridger Oct 20, 2015 7:55 AM in response to rboko
    Level 1 (5 points)
    Oct 20, 2015 7:55 AM in response to rboko

    Same problem here. Have already spent $400.00 recovering a 1TB drive. Called Apple about this and they had me reset VRAM and something else. Did not help. All of this only began after instal of El Capitan. And this was supposed to be the OS X version with few new features but lot of details to fix issues. Som much for that goal.

  • by postak,

    postak postak Oct 21, 2015 11:26 PM in response to goye
    Level 1 (0 points)
    Oct 21, 2015 11:26 PM in response to goye

    problem still here after 10.11.1

  • by C5ELEN,

    C5ELEN C5ELEN Oct 23, 2015 3:02 AM in response to goye
    Level 1 (5 points)
    Oct 23, 2015 3:02 AM in response to goye

    I've also been having this problem since upgrading to El Capitan with 2 external drives, both connected via USB 3 to my nMP. The external Pegasus R4 RAID connected via Thunderbolt doesn't have the issue. When I wake the computer, even though I have the warnings that these USB drives weren't ejected properly, they are still mounted, so Im not sure if it's causing any issues in of itself, but I didn't see this problem before El Capitan.

     

     

     

    The funny thing is, if I manually put the computer to sleep for a few minutes, after waking it, I don't see the issue. It seems to only happen when the computer goes to sleep for an extended period of time, 5 hours last night. 

  • by lnikj,

    lnikj lnikj Oct 23, 2015 10:07 PM in response to goye
    Level 1 (0 points)
    Oct 23, 2015 10:07 PM in response to goye

    New iMac with El Cap. Same issue after machine sleeps overnight, not for shorter periods during the day.

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