Thunderblade X12 mounting issue - Functionality Issues

RE: Thunderblade X12 mounting issue

SoftRAID Support — Mon, 23 Mar 2026 23:53:22 +0000

@kashmirlse

what you’re seeing is normal, and your data is safe.

When you unmount the volume, Windows has already stopped all access to the file system. At that point, the volume is no longer mounted and it is safe to disconnect the device.

With Thunderbolt (and other externally powered devices), Windows may still show the hardware as “connected” even after the volume is unmounted. That’s different from USB thumb drives (bus powered storage including SD cards), which often disappear completely — but the important part is that the volume itself is no longer active.

RE: Thunderblade X12 mounting issue

kashmirlse — Mon, 23 Mar 2026 22:11:23 +0000

@softraid-support I don't really understand your reply about unmounting. Isn't the whole idea of unmounting to avoid just pulling the cable? My concern is shutting off the device and it not truly being unmounted, thereby ruining the drive and the files. When I unmount it, every item in the list remains, so is it unmounted or is it still there?

RE: Thunderblade X12 mounting issue

SoftRAID Support — Wed, 11 Mar 2026 18:51:34 +0000

Lets try to isolate this. The list your shown is a screen capture that lists all connected devices. When you "unmount" a USB thumbdrive, Windows also electrically disconnects it and it "disappears", not so for Thunderbolt.
If you unmount the volume, it will unmount, but the device is still listed as you see.

When you pull the cable, your Thunderblade will be removed from the list.

For the lights:

The LED behavior differs by ThunderBlade generation, which is likely the source of the confusion.

On the original ThunderBlade (4-drive, Thunderbolt 3), the front light bar is segmented — each section corresponds to one of the four SSDs and blinks with that drive's activity. That's where the "blinking" descriptions come from.

The ThunderBlade X12 uses a single Data Connection LED: solid white when powered on but not yet connected to a host, and solid blue once a Thunderbolt connection is made. The white-to-blue transition happens quickly at startup, so it's easy to miss.

So a steady solid blue on your X12 is completely normal and working as designed.

Thunderblade X12 mounting issue

kashmirlse — Mon, 09 Mar 2026 19:12:49 +0000

I just bought the Thunderblade X12 48tb and reformatted for Windows 10 as a raid 5. When it mounts, it shows everything and not just the raid. When I unmount the raid (on very bottom in picture), it is apparently not truly unmounted. I have to unmount every single item shown here. If I don't do that and restart the computer, the raid won't mount in explorer until I unmount everything, restart the computer again and the Thunderblade. Any idea why I can't just unmount the raid once without having to unmount the individual items too?

Also a side note -- my Thunderblade has always shown a solid blue LED, but I've seen others say it could be solid white or blinking to indicate a specific function. I've never seen this happen. Any idea why? Or is that for other models?

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