Welcome!

If you are here, then you have likely encountered a red light drive error on your WD My Cloud NAS device, and are looking for a solution. Don't worry, you have come to the right place. In this guide, we will explain what the red light drive error is, and how to fix it. We will also discuss potential causes and provide tips that can help you avoid this issue in the future. Let's get started.

What’s the red light?

When you see a red light next to your disk indicator, it is likely an indication that there is an error on your filesystem, or that one of the disks is failing. This could be due to a software or hardware issue, and you should take steps to fix it as soon as possible. In the case of a WD My Cloud, the red light drive error is an indication of a problem with your NAS device and should be investigated further. This can be done by running a system diagnostic, checking connectivity, and replacing any faulty drives. It is a good idea to back up your most important data on a regular basis and to use try to fix these issues quickly, before they compound into larger ones.

Let’s Fix It!

Step 1

Log into the NAS via terminal.

Make sure SSH is enabled on the web portal.

Step 2

Check to see what processes are using the drives:

fuser -vm /dev/md1

Step 3

Now, we’ll chain together three commands — kill all of the processes, unmount where the main drives are mounted in Linux, and then run e2fsck to fix any weirdness on the file system using the journal.

kill PID1 PID2 PID3 … PID9 && umount /mnt/HD/HD_a4 && e2fsck /dev/md1

Step 4

Reboot via the web portal, not on the command line.

Final Step

Run the Disk Test function as a ‘Full Test’.