Repeated "Error in Raid 1 configuration" message

I am getting repeated message “Error in Raid 1 configuration. Pls run WD Disk Utility”. This normally happens when the iMac goes into sleep mode and I wake it up again. But the drive continues to run fine and all data is accessible.

Any suggestions on how to remove this pesky message?


Hi @vinaydixit,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting:


It’s possible that the error message is being triggered by a glitch in the RAID controller software or the communication between the controller and the operating system. Here are a few steps you can try to troubleshoot the issue:

  1. Check for updates: Make sure that you have the latest version of the WD Disk Utility software installed, and that your iMac’s operating system is up to date.
  2. Verify disk health: Use the WD Disk Utility to check the health of the RAID 1 drives. If there are any issues, the utility should be able to repair them.
  3. Reset the SMC: Resetting the System Management Controller (SMC) can sometimes resolve issues with the RAID controller. To do this, shut down your iMac, unplug it from power, wait 15 seconds, and then plug it back in and turn it on.
  4. Rebuild RAID: If none of the above steps work, you may need to rebuild the RAID 1 configuration from scratch. This can be a time-consuming process and requires you to back up all of your data before proceeding.

If you’re not comfortable performing any of these steps, it may be best to seek the help of a professional technician or contact the manufacturer’s support team for further assistance.

Thanks very much. Will try this out.


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