WD My Book Duo - Ejects itself -> Blinking yellow light

Hi guys,

I have been using a My Book Duo 20 TB for a year now, no problems.

Today I plugged in the external harddrive to my iMac, and it ejected itself, and went from a white light to a slow blinking yellow light.

I tried to plug it in again, and the same thing happened.

Anyone have a clue of what the problem? and most important of all… Can I rescue all the material on it?

Kind regards Carl with no backup


You should try contacting WD’s Technical Support about this for live assistance and troubleshooting:

To Contact WD for Technical Support


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To resolve the hard drive auto-eject issue, tweak the power management settings of Mac, as shown here:

• Go to Finder > Applications > Utilities > Terminal.
• On Terminal, type “pmset –g | grep disksleep” and hit Return.
• Check the value of disksleep. If it is low, provide a significant number.
• Type “sudo pmset –a disksleep #” (here, replace # with a suitable number) and hit Return.
• Provide the admin password when prompted.
• Check the changed sleep value using the “pmset –g | grep disksleep” command.

The above solution will fix the drive auto-eject problem. Now, use the hard drive to save and access data as usual.


Did you ever figure out the problem. Was your Data recivered?

Did you ever figure out the problem. Was your Data recivered?