HT204990: Use Windows 10 on your Mac with Boot Camp
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Q: I am having problems with random external drive ejects. Will El Capitan fix this problem?
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by Grant Bennet-Alder,Aug 29, 2015 6:22 PM
Grant Bennet-Alder
Aug 29, 2015 6:22 PM
in response to cmdrspockncc1701
Level 9
(60,719 points)
DesktopsYou have a persistent unsolved problem. It is extremely unlikely that a new major version of the software will make it better, because Apple does not recognize this problem as a system problem.
As far as I can tell, this is a problem with YOUR setup, or your understanding of how it is supposed to work.
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If your Mac goes to sleep, it may drop USB power to levels so low that high-draw devices such as Bus-powered Hard Drives "drop out". When power is restored, some models do not reliably "come back".
The best solution for this problem is to use Drives with an external power supply. Those continue to be as solid as possible.
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by Grant Bennet-Alder,Oct 4, 2015 9:23 AM
Grant Bennet-Alder
Oct 4, 2015 9:23 AM
in response to longtimesupport
Level 9
(60,719 points)
Desktops
Then you should turn off [√] Put Drives to sleep when possible in Energy Saver.
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Oct 4, 2015 9:48 AMby longtimesupport,The ejects happen while copying a file from the stick to the mac.
So any energy saving algorithm should not influence this action.
In fact its not totally random. The eeject happens after 2,05 to 2,17 GB of copying the EL Capitan installation File.
I backed it up to the stick before executing the update.
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by Grant Bennet-Alder,Oct 4, 2015 11:06 AM
Grant Bennet-Alder
Oct 4, 2015 11:06 AM
in response to longtimesupport
Level 9
(60,719 points)
Desktops
are you running a so-called "antiVirus" scanner?
