Noticed this morning my Plex was missing content. Went and checked on the DAS, And noticed drive way 3 was just blinking, Not reading blinking. So, I remounted the drive. Nothing changed. Same flashing light on bay 3, Restart the device, Again, Bay 3 just lighting away. So i moved the drive to bay 4, and it mounted right now. Ran a smart check on it, drive checks out. But, Bay 3 light is still blinking away.
Hardware failure maybe? Or does anyone know something i dont.
Thank you.
[Help] TERRAMASTER D4-320 No longer reading driver bay 3
Re: [Help] TERRAMASTER D4-320 No longer reading driver bay 3
Based on your description, if it is not caused by improper installation, it is very likely a hardware failure. (Try cleaning the dust?)
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Product Order invoice information.
Product SN.
Delivery address.
Phone number.
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- spencerwest
- Posts: 1
- Joined: 13 Apr 2026, 15:46

Re: [Help] TERRAMASTER D4-320 No longer reading driver bay 3
Since the drive works fine in another bay and SMART is clean, it does point more toward a backplane or bay controller issue. You could try cleaning contacts and reseating cables, but if bay 3 keeps blinking without a drive issue, it’s likely hardware-related.
