Ejecting External drives when sleeping?

sparkie1984

macrumors 68020
Original poster
Dec 20, 2009
2,230
855
a small village near London
Hi all,

I have 2 external drives plugged into my macbook pro the majority of the time. However when it goes to sleep over night and I wake it up the next morning I always get a warning saying the drives haven't been ejected.

Is there a way to get it to eject disks upon sleeping? As I am worried I will damage them or lose data somehow.

Thanks
 

HDFan

macrumors 68020
Jun 30, 2007
2,136
535
Thorny issue. There is always the risk of data loss, although if I don't have activity on the disks and no files are open most of the time I don't get any data loss. But then there are other times ....

External drives not being ejected when the system goes to sleep can be due to a number of things, some of which may be vendor specific.

1). In System Preferences, Energy Saver, do you have "put hard disks to sleep when possible"? If you haven't set this and turning the option on fixes the problem breathe a sign of relief.

2) If it doesn't work then the next step is to go to the vendor. Results can vary here.

I had some Seagate (or was it Western Digital, can't remember) external drives that continually gave this problem some years ago. There were a lot of discussions in forums about this problem. There was supposed to be a drive setting in their software to fix the problem but I never got it to work. I contacted Seagate support but the issue was never resolved.

Conclusion: a drive firmware issue Workaound: eject drives manually

2) My current Oyden Digital 5-Bay drive has the same problem. I contacted their support (which is terrific by the way) and they said that they had identified a problem where the drives would eject when the display went to sleep!. They were working on a firmware fix. Workaround: turn off automatic display sleep, eject drives manually, put display to sleep manually [I have a MacPro].

Since this is a JBOD with a total of 6 disks mounted (one disk has two partitions), I have a script under Finder Services which I run every night to automatically eject all of the disks.

3) My Promise Pegasus R6 seems to handle power off and sleep events with no problems.

What are the external disks that are showing the problem?
 
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sparkie1984

macrumors 68020
Original poster
Dec 20, 2009
2,230
855
a small village near London
Thanks for you detailed reply.

I have a wd my book duo and another wd my book as a backup drive.

I am using the duo for my photos library and ideally would love if it could mount upon waking the laptop and unmount upon sleeping the laptop.

Such a shame there isn't an option in OS X.

I'll check the power settings when I get home
 

AlexH

macrumors 68020
Mar 7, 2006
2,035
3,151
I've had the same problem on my MacBook Pro. My Seagate external drive seems to hum along no problem, but about 1/3 of the time my LaCie will misbehave. I appreciate the detailed post, HDFan. I don't know why I haven't thought about trying #1. Hoping it works.
 

kagharaht

macrumors 6502a
Oct 7, 2007
893
386
This happens occasionally on my new iMac with Yosemite. It's random. The drives simply ejects itself during sleep. It's another bug in Yosemite, among many many bugs that Apple needs to really focus on.
 
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