external drive ejects at sleep

Now, u2 have the problem solved. A trashed drive doesn't have to be ejected. 😟 This is MOST distressing. I've purchase a LAN storage device to decouple it from OS/x. 1-week and all is well on both a MacBook and MacMini

This was a minor nusance up until Mavericks, now my firewire connected hd seems to eject pretty much all the time. I thought it had something to do with the sleep mode on my display, but after disabling that the problem persists.

Drives connected via USB seem to function fine - please fix this sillyness.

Send Apple feedback. They won't answer, but at least will know there is a problem. If enough people send feedback, it may get the problem solved sooner.

Feedback

I was having the same problem with my 2013 iMac. It would eject my WD USB 3.0 external hard drive after every Time Machine backup. Changing the sleep settings did no good, so I tried plugging the backup drive into a Satechi USB 2.0 hub, and the problem went away. I then bought a new Satechi USB 3.0 hub, and still no problems. There must be something about having a hub connected between the hard drive and the computer that keeps it from ejecting the drive when the computer goes to sleep. See if it will work for you.

The link works and can be filled in. But where is the "SEND" button?

It seems to be hidden but it is in fact still there (Sneaky ******) It is in the blank space to the right of this picture, at the the bottom of the form.. Hover over it and you will be able to click send.

I'm on this list too. Two of my external disks eject when I sleep the computer and tell me when I wake it. I sent in the bug report. On of them just gave a warning say OS X can not repair such and such disk, you can read from it but not write to it. Please backup and reformat as soon as possible. That's scary. I ejected it and plugged it back in and it works now but I don't like that. I had this happen in 10.9.4 but more often in 10.9.5.

RE: New Mac Pro (late 2013) with LaCie externals: 2x3TB, 1x1TB (USB3), and 2x12TB LaCie 2BIG (each RAID 0 on Thunderbolt 2).

The 12TB drives were behaving perfectly when brand new (about 3 weeks old now). Then, Final Cut Pro with a certain MOTIONVFX.com plug-in occasionally caused my system to crash and reboot automatically. 😟 As a result, finder prefs (minimally) got corrupted and I couldn't even dup or delete a file or folder. PLUS, eventually, the 12's would no longer sleep with the computer and then get ejected when the Mac slept for an extended period of time and when the Mac woke up, it produced the dreaded, "DISK NOT EJECTED PROPERLY" message for BOTH 12's.

I tried everything: zapping PRAM, resetting SMC, rebooting, repairing permissions...Nothing worked. LaCie: No help, although they offered to send new Thunderbolt cables.

I had the same drive-not-sleeping problem with my Mac Mini for a while, and that inexplicably went away recently.

Sooooo... Here's how mine got fixed. Hope it works for you...

Last night there was a car accident (somewhere) at 2:45AM and for 2-1/2 hours we had a power outage in the entire area. At 6AM I woke the computer and the drives were once again working perfectly (and not getting improperly ejected).

The one thing I hadn't tried was shutting down the Mac PRO for an extended period (probably the same extended period of simple sleep that caused the ejection). The Mac Mini's drive-sleep problem probably also went away when it was powered down recently for lack of use.

So try it: Power-down for at least 2 hours.

∆

Do you think it is essential that we power off the whole city?

no... Just your entire house.

Happening here. Seagate Backup Plus Slim Portable Drive USB 3.0, often getting Disk Not Ejected Properly after iMac (Late 2013 10.10) wakes. Tried checking and unchecking put hard disk to sleep when possible in Energy Saver, still get the error. Opened a case with Segate, they seem like they are aware of the problem but no fix yet: From Segate:

Dear Me:

I apologize for the confusion, but the firmware update you are likely referring to was in relation to a USB 3.0 issue that occurred some time ago. The USB 3.0 issue on Macs was something we were able to create a fix for on our side. This issue caused the drives to eject at random. All new Backup Plus drives already come with this firmware update installed

Unfortunately, the issue you are encountering now is a different problem that we have been unable to pinpoint and is not isolated to Backup Plus drives, but instead external drives as a whole. This issue can cause any brand or model of drive to eject after Sleep.

The following Apple Support Communities thread has been discussing the issue for some time now:

https://discussions.apple.com/thread/5306476?start=0&tstart=0

While we are continuing to research this mysterious bug ourselves, it can be helpful to provide Apple with feedback as well since the fix may be in their hands:

https://www.apple.com/feedback/

I apologize for the inconvenience. Until a fix is discovered by us, Apple, or another involved party, I recommend safely ejecting the drive before putting your computer to sleep.

If you do choose to try a different drive, I hope that it does not experience the same bug, and I hope that you will consider our products again in the future.

To continue support for this case, please reply directly to this email. We can also be contacted over the phone at 1-800-732-4283. Phone agents are available Monday through Friday, 8am-6pm Central Time. For additional assistance, feel free to contact us at: www.seagate.com/about/contact-us/technical-support/

Regards,

Ryan

Seagate Support

I've been experiencing this for a few months, ever since adding an OWC 4-bay Qx2 external.

Am just now finding threads on this, and will add to them just to get them moved up to the front. This issue does not appear resolved.

My setup:

- Late-2008 iMac, Snow Leopard (clean install), new Samsung internal SSD, 4G RAM, new Wacom Pen&Touch tablet. No wireless.

- No unusual 3rd party software, no resource-hog anything, no gaming. Entire HDD contents don't exceed 300G at this time.

- The drives inside the enclosure are matched Hitachi, connected via FW800. I won't try USB2. Never owned WD.

- The only hub in the system is Ethernet, for simple file-sharing to a 2nd, much older, desktop (G4 PPC).

The abrupt unmount / eject started showing soon after initial Qx2 install. Other seemingly-unrelated behaviors occurred, along with error messages; everything worked fine when the Qx2 was disconnected (including the presence of an additional single external HDD, also OWC). Spent months observing and complaining to OWC. At their direction, I did the PRAM and SMC resets; no change. I was finally granted an RMA replacement, which for over week worked perfectly – but in the last couple days, two unmount / eject incidents have occurred. Despite the much better performance, the problem seems to linger, and I'm not convinced it's the external. Or OSX for that matter. I can't even be sure the the discs are unmounting despite the error messages. I also can't be sure my files aren't being corrupted as this happens repeatedly.

Other threads suggest a connection between Sleep and some confusion on the hardware end as to recognizing and/or properly ejecting when Sleep is selected. My understanding is that it's not uncommon for power supplies on even the priciest multi-bay enclosures to be wobbly.

Again, just moving this to the front burner, in hopes of reading new info.

Bautts,

Would you please provide the model numbers of the Satechi USB 2.0 and 3.0 hubs that you found fixed the unwanted ejection issue for you? Considering the low cost of a USB hub this would be an acceptable workaround for me.

To provide my system specs I'm having the ejection issue with a Vantec Nexstar MX RAID 2-disk USB 3.0 enclosure and a 2008 unibody MacBook Pro running Snow Leopard. The issue started when I moved this USB enclosure from being an Airport Disk on my AirPort Extreme in hardware RAID1 to being a standard USB drive hanging off my laptop using Apple's software RAID in RAID1, which means the Nexstar is running in plain disk mode and simply presents both disks to OS X. I haven't ruled out whether or not the issue is related to the new RAID config or something else. I never had any issues with the Nexstar running as an airport disk, but since it was only used for time machine backups the issue may have been present but less obvious since time machine backup mounting is sporadic in nature, as opposed to a direct attached USB device which would always be mounted.

I'm going to try attaching the Nexstar to my other newer MacBook Pro laptop running Mavericks and see if I still have the issue. I'll post my findings for the benefit of all on this thread.

I had my Mac turned off for a whole day while traveling. Didn't fix the issues.

LG

Some of you may want to try a utility called "Mountain": http://www.appgineers.de/mountain/

It has worked well for me so far to control the sleep-related improper disk ejection issue.