Issue with WD PR4100 NAS: Drive Failure and Missing RAID Configuration after drive replacement, Unable to Access Data -- OS3

I am facing a serious issue.

I have a WD PR4100 NAS with OS3 version 2.x and a capacity of 4 x 6TB. Four days ago, Drive 3 suddenly showed as “Drive Failed,” and the light on Drive 3 turned red. At that point, I was unable to access any data stored on the NAS.

I then purchased an identical hard drive to replace Drive 3. However, after replacing it, the dashboard no longer displayed the hard drive capacity. Instead, it only showed the message “No Configured Volumes.” When I checked the RAID profile, it also indicated “No Configured Volumes.”

I can still log in to the dashboard, but I cannot access SSH or retrieve any files in any way. I believe this issue may be related to the RAID configuration or a missing profile.

Could anyone assist me in fixing this issue or helping me back up the existing data?

Thank you.

Hi @shark_coolz

Have you checked our knowledge base articles?
(Support for Western Digital Hard Drives | Western Digital)

Try this one.

Have you opened a Support Case?
If not, contact Western Digital Technical Support for assistance.
[https://www.westerndigital.com/en-in/support/contact-us]