I have a WD Duo 8TB connected to my iMac with a USB cable. Everytime I wake the iMac I get a pop-up message “Error in RAID Configuration” telling me I have configuration issues, and that I should run WD Drive Utilities. I have done this multiple times, and each time all the tests (SMART status, scanning, and complete drive test) check out OK. Anything else to check or set-up?
Re-configuration of RAID setup would be required in this concern. You can check after configuring the RAID in your Duo drives.
After taking the backup, I would recommend you to erase the drives using WD Drive Utilities and reconfigure the RAID in these drives.
Did you take asp73’s advice? If so, did it fix your problem?
I have this identical issue – WD Mybook Duo, 2x8TB configured raid1 total 8TB. Connected to Mac Pro 2013 with USB 3 cable.
Almost every time I wake the computer, I get the Error In Raid Config popup. All diagnostic tests pass fine (short & medium, havent done the full test in a little while but it passed before).
SOMEtimes files or folders are “missing”, but reappear after reboot.
This is only after a mac sleep. Run and work fine all day, all media, all my work, everything is reliable…
[[Grain of salt: This feels like an OS/software glitch, not an actual drive glitch.]]
Any similar anecdotes? Share? If it’s real, let it be visible…
After waking from sleep, sometimes my second Mybook Duo (daisy chained from first) appears multiple times. polytope_21a is connected to computer, polytope_21b is connected to '21a.
In the Finder, if I click the topmost '21b which has a “document” icon rather than a drive icon the finder hangs, and computer needs eventually to be rebooted.