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Assigned Disk appearing as "unassigned"

Featured Replies

Hi, 

 

Been a long time since I started my server and now I'm running into an issue where one of the drives is appearing as "unassigned".

 

I checked all the cables and everything is connected. 

 

Don't want to start the server and risk losing some important data. 

 

Any and all help is greatly appreciated. 

 

Cheers

2025-03-04 3.26.38 PM.png

  • Community Expert

Your screenshot doesn't actually show the Unassigned Devices section. Post a screenshot of that part, and

 

Attach Diagnostics to your NEXT post in this thread.

  • Author

I don't get what you mean by the Unassigned Devices section. 

 

Do you mean this section.

 

I'm specifically referring to "Disk 11" as appearing unassigned. 

2025-03-04 3.51.27 PM.png

unraid-tower-diagnostics-20250304-1547.zip

  • Community Expert
6 minutes ago, bm83 said:

the Unassigned Devices section

That should appear after the Pool Devices section in MAIN.

 

I don't see an Unassigned Disk in your Diagnostics. Can you see the disk in BIOS?

  • Author

So going into Bios is a bit iffy. It's been 7-8 years since I built the server and I'm using extra hardware to get all the drives to show up (couldn't tell you what...it has been that long). 

 

The only thing that I see on the bios side are the drives connected directly to the motherboard (so from the mobo sata).

2025-03-04 4.10.03 PM.png

  • Author

Checked into Bios. 

 

This drive does not appear there either. 

  • Community Expert

Check connections, SATA and power, including splitters, then see if it shows up.

 

Do any of your other disks show SMART warning ( 👎 ) on the DASHBOARD page?

  • Author

Nope. None of the sata/power splitter or anything else is the issue. I even changed the location of the drive to see if that would help. 

 

And none of the other drives show any smart warnings on the dashboard page. 

  • Author

I have started the array but it is just frozen on "Mounting disks". It's trying to mount "Disk 1" but is just stuck doing that. 

 

I've uploaded the new diagnostics -- but am not sure if anything is going to change.

 

 

2025-03-04 11.59.28 PM.png

unraid-tower-diagnostics-20250304-2354.zip

  • Community Expert

Read errors from parity, check replace/cables for that disk and try again.

  • Author

The parity drive is plugged in well. And the error is still appearing. 

  • Community Expert
7 hours ago, JorgeB said:

Read errors from parity, check replace/cables for that disk and try again.

 

  • Author

"Read errors from parity, check replace/cables for that disk and try again"

I don't follow what you mean by that. 

  • Community Expert

There are read errors with the parity disk, check/replace its cables, and post new diags after array start.

  • Community Expert

Now you are having read errors on disk5.

  • Community Expert

How are these large number of disks powered? Any splitters? More than 4 disks per PSU cable?

  • Author

What can I do about that?

  • Author

No not really.

 

I had the server running fine for around 6 years. 

 

Then for the past 1.5 years it was just sitting unused (moving houses) --  

and now this.

  • Community Expert

Not clear what you are replying to.

 

You can quote an entire post by selecting "Quote" below the post, like this:

4 minutes ago, bm83 said:

What can I do about that?

 

Or, you can quote specific parts of a post by selecting the text and clicking "Quote selection" from the popup that appears, like this:

4 minutes ago, bm83 said:

for the past 1.5 years it was just sitting unused (moving houses)

 

  • Community Expert
13 minutes ago, trurl said:

Now you are having read errors on disk5.

7 minutes ago, bm83 said:

What can I do about that?

23 minutes ago, JorgeB said:

check/replace its cables, and post new diags after array start.

 

 

 

  • Author

Alright I think I'm getting this...a bit. 

 

Now I have Disk 5 operational but disk 13 is acting up. 

 

Going to change some cables for that. 

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