WD My Book Duo (2017)

WD External Drives External Drives for Mac
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I purchased a 6TB WD My Book Duo (2017) a couple of weeks ago. Set it up as RAID 1 HFS+J drive. It is connected to my MacBook (2016). All was working fine until today, it has been painfully slow (write speeds of 9MB/s / read is 70+MB/s). Sometimes the drive is not being recognised by Mac on reboot. So I checked the drive with the WD Drive Utilities app, SMART returned ok, but the Quick Drive Test keeps failing, I get this error “Quick Drive Test failed”, no further details provided. Running a Complete Drive Test now, which will hopefully turn up a solution.

Anyone else having similar painful experiencing with these drives, the whole point of it was to have a double backup, but it looks like I should have a backup of my double backup!

I have ran Disk Utility and no problems found there. My power management settings are set to not sleep the drives.

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That didn’t help, it just says “Complete Drive Test canceled”, no idea why it says that. I didn’t cancel it, it just stopped.

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And the same thing happened again on my MacBook (2016), so I plugged the WD My Book Duo hard drive USB-C to USB-C direct into my MacBook, so nothing in-between could be a failure. Same result again, it won’t even complete the tests.

Macbook (2016), macOS High Sierra 10.13.4. My Book Duo setup as RAID 1 using WD Drive Utilities 2.1.1.69 for Mac. Is there a compatibility issue with the MacBook and/or macOS 10.13.4 and the hardware?

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do you have news ?

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So, eventually got it all working. First thing I did was to scrap the Apple USB-C to USB & HDMI adapter and purchased a HooToo USB Splitter with 3.1 USB-C, 4K HDMI Port, USB 3.0 Port - that fixed most of the problems.