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Thanks for your response, Jorge - took me a few days to get this done. I rebooted the server, and got an 'array turned good' message. Attached are the diagnostics and smart report for the drive in question. A SMART short self test completed without error. Does it make sense to rebuild with this drive, or better to replace with something bigger & newer? thegrotto-smart-20250116-1524.zip thegrotto-diagnostics-20250116-1528.zip

Hey all - after getting my first Unraid server up and running earlier this year, I now have the pleasure of my first 'disk in error state' problem. Server has been up and running for 3+ months (seemingly) without issue, so I'm not sure what it could be. Is this simply a case of rtfm and replacing the drive, or is this something that can be resolved? thegrotto-diagnostics-20250113-1956.zip

Just wanted to thank @Faceman for the super-clear guidance in the solution. Came across this exact issue installing my first HBA today, this thread made for a relevant and easy solve 🙏

Long time reader, first time writer... I've been using QNAP boxes to host my media for the last 10-15 years and finally liberated myself this week! After a day or so of fiddling, and immeasurable help from previous threads and commenters here, I now have my first UNRAID server up and running 😃 Now that I'm in business, I'm looking at the best way to transfer app. 15TB of data from my previous environment to this new box. My old setup is a QNAP TS-251+ running two disks as JBOD, with a TR-004 external enclosure attached. The TR-004 stores the bulk of my files. A few short tests, however, showed that transfer speeds with this current setup (over ethernet), are as low as 10MB/s - I'd like to speed that up. As an experiment, I unmounted the TR-004 from the QNAP NAS and plugged it into the UNRAID server. It's recognized and shows up in Unassigned Devices, which gave me hope I could mount it and speed up the data transfer. But when I try to mount it, I get a "wrong fs type, bad option, bad superblock..." error. Does anyone know if/how a helper program can be installed to enable the drives on the TR-004 to be mounted? EDIT/ADDITION: after further internet sleuthing, running a blkid command showed the volume has a PTTYPE="gpt", indicating that it is lacking a file system (?). fsck -N then returned fsck.ext2 for that volume. Is there a way I can mount this TR-004 volume and view the data on it by adding a filesystem? I'm a bit beyond my capabilities here 😅