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Lacie disk on FW not sleeping after installing Mavericks

On my 2007 iMac, with a LaCie D2 Quadra. This has been connected for years with FW800, and the power switch on the disk is set to Auto. When sleeping the Mac, the disk has always gone to sleep. After installing Mavericks, the disk does not go to sleep after sleeping the Mac when connected with FW800 or FW400, but will sleep if connected with USB2.0. Any ideas?

Posted on Oct 24, 2013 3:08 PM

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255 replies

Jun 16, 2014 7:59 PM in response to ivansnikki

It is model dependent. Drives with certain (but not all) types of Oxford FireWire chipsets will no longer spin down. This is to address an issue where drives may spontaneously eject themselves when spinning down. Have a look at the 10.8 and earlier OS X forums; you will see many threads about it.


This ejecting problem is a fault of the drives, and not a fault of Apple's. Having these drives never spin down is Apple's way of fixing the spontaneously ejecting problem.


We may argue that this fix is poorly implemented (i.e. my drives have never had this problem) or that it's just creating a bigger problem (now my drives spin 24/7) but what is clear is that this is not a bug. It is fully intentional on Apple's part.


I was able to make my own fix for this by using sleepwatcher to invoke a script to automatically eject/remount the drives when my Mac sleeps/wakes, which does cause them to spin down properly during system sleep. If you want a solution to this problem, taking matters into your own hands is the only way. A "fix" from Apple will never come, since Apple considers this to be not a bug, but a feature.

Jun 17, 2014 12:04 AM in response to Király

Apparently, Apple changed their mind and has made some changes. With 10.9.3, LaCie external FireWire drives now spin down when my MacBook Pro sleeps. However, those connected to our iMac do not (all drives are the same model). Previously, they both worked the same way. At least now, if I follow a specific procedure, I can eject, power down the external FW drives and disconnect them properly. Previously, they never spun down, and I had to disconnect them, after commanding them to eject (they'd eject, but keep spinning).


I believe that before 10.9.3, (10.9.2 ?), the computer shutdown process no longer hung up waiting for the drives to spin down, which they never did, thus hanging up shutdown. That was particularly annoying and afflicted both the laptop and MacBook. So, there's another change that Apple made, though admittedly they had to because that behavior was unacceptable.


The drives wake up for various things, obviously foremost is when the computer wakes up. The 'put disks to sleep when possible' is still not honored.


I have noticed that, also with Mavericks, logging out of your account will remount and spin up any connected external FW drives. That is definitely different from before.


In summary, apparently Apple continues to do something addressing this and related issues. The disparity between the iMac and MacBook Pro is particularly odd, and not consistent with intending that the drives remain spinning as long as they are connected, mounted and the computer is on.


Considering the community's investment in FW external drives, they should at least return to the original cofiguration. I suspect the number of users affected by random eject is a minority. In the current condition, there are a lot more unhappy users.

Jun 17, 2014 3:23 PM in response to SteveKir

The funniest thing is I just spoke to AE and they still mantain that Apple has no official documentation that there are any issues with FW drives entering standby mode. According to Apple, Mavericks has not caused any changes with external drive management. The issue may be fixed with Yosemite, but I doubt it. I'm sure Apple considers FW dead technology. Since I upgraded my FW drive to T-bolt, I have had no issues whatsoever.


MacWorld is definitely not going to get involved as they are essentially a mouthpiece for Apple. Plus, both entities want to shift users to more expensive, and newer T-bolt drives.


I wouldn't hold my breath on this FW issue, but it will be interesting to see if Yosemite solves the problem....

Jun 30, 2014 11:00 PM in response to mroadster

Tested with 10.9.4 my Firewire drives still don't spin down. :-( Grrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr.


My USB drives spin down, but when I switch off my hibernated iMac and switch it on again my iMac tells me that I did not eject them properly. This did work with Mountain Lion without a problem. :-( Grrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr²

Jul 28, 2014 6:03 AM in response to carstenf

It's been posted on this apple forum several times, somebody even posted the chat they had with Apple Engineering clearly saying thats how it is suppose to work now. I don't like it either since I have several drives that are FW only and now I have to manually shut them off therefore they are useless on my server.


Don't have time to search for it now, maybe one of those posters can put a link back to it but the bottom line is this is how FireWire is suppose to work now.

Lacie disk on FW not sleeping after installing Mavericks

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