February 23, 20251 yr Hi there, Premise: I am still very new to Unraid and self-hosting. I have one 4TB parity HDD and one array composed of a 2TB and a 4TB HDDs. The HDDs are in an USB enclosure - I am aware it's not ideal and soon I'll move to a server with integrated slots. All was going well but earlier today I received a write error on the 4TB and "deviced is disabled, content emulated error". Attaching diagnostics. The HDD is new, I bought and add it to my array less than 1 week ago. I stopped the array and that 4TB disk did not appear at all in the dropdown menu. I restarted the server as I had similar issues before with disks not being detected after an array stop. This time it was detected, so I Created a new config (preserving all assignments) Reassigned the disks to the correct slots in the array Checked "parity is already valid" The array started, but the dockers were empty. I freaked out (my bad) and tried the same again. I tried to manually mount without starting the array and the disk that had a write error is seen by lsblk but does not have a partition table. The other array HDD has. I am not sure how to proceed. I was thinking to try to restore the disk from the partition, but I am afraid of messing everything up (my parity disk is my "backup" , I don't have others) - so that's why I need some expert opinion. I am thinking about rsync'ing the data from the 2 disks to a backup HDD but I am not sure how to access the data of the 4TB HDD as it doesn't seem to have a partition table so I don't know how to mount it. Thanks heaps tower-diagnostics-20250223-1433.zip Edited February 23, 20251 yr by fmok added info that the HDD that supposedly failed is basically new
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