Hello all..!

I woke up this morning to a HDD missing but was unable to look into it until this evening, I'm assuming the drive had a bunch of errors and was disabled from what I'm seeing. The attached diagnostics is from before I began to investigate, I have since shutdown and moved the drive to another bay and restarted currently in maintenance mode and have an extended self-test running after the short self-test returned no errors.

Any confirmation on how to proceed would be appreciated, I've had a look online throughout the day and found many different routes to try and many invalid links to the old documentation so was hoping for a double check from people who know what they're doing..!

Thanks for any advice.

svr-unraid-diagnostics-20261004-1728.zip

Edited October 4Oct 4 by AndyBaines
Spelling mistake.

4 hours ago, AndyBaines said:

old documentation

You can access the current documentation from the "manual" link at bottom right of any page of your Unraid webUI. There is also a link to the current documentation at the top of any forum page.

I don't see a SMART report for disabled disk9, but the emulated disk9 is mounted and showing plenty of data.

If disk9 is connected now post new diagnostics.

5 minutes ago, trurl said:

If disk9 is connected now post new diagnostics.

Thank you for the response, this diagnostic is the system now, 40% into an extended self-test on disk 9.

svr-unraid-diagnostics-20261005-0007.zip

SMART report for disabled disk9 looks fine. I would be surprised if it doesn't pass extended test, but let it complete. 10TB will take a while.

Then start the array in normal (not maintenance) mode so we can make sure emulated disk9 is still mounted.

Then post new diagnostics.

5 minutes ago, trurl said:

Then post new diagnostics.

Thanks again, will do..! 👍🏻

14 hours ago, trurl said:

Then post new diagnostics.

Hi again..!

Extended offline Completed without error

New diagnostics attached, disk 9 contents is still being emulated from the "Main" page.

svr-unraid-diagnostics-20261005-1518.zip

Emulated disk9 is mounted and showing plenty of contents. You can rebuild to the same disk.

https://docs.unraid.net/unraid-os/using-unraid-to/manage-storage/array/replacing-disks-in-array/#re-enabling-a-disabled-disk-rebuilding-onto-itself

1 minute ago, trurl said:

Emulated disk9 is mounted and showing plenty of contents. You can rebuild to the same disk.

https://docs.unraid.net/unraid-os/using-unraid-to/manage-storage/array/replacing-disks-in-array/#re-enabling-a-disabled-disk-rebuilding-onto-itself

Thanks for confirming, I had that guide open but was waiting to double check before going ahead. Thank you for your support during this issue..! 👍🏻

Rebuild has been successful, fingers shall remain crossed but hopefully it was a random hiccup..! 🙌🏻 Thank you for confirming the plan trurl. 👍🏻