anynameisfineee

Commenting here for posterity to say that I've also been suffering this issue. I'm a new Unraid user so I went through weeks of troubleshooting before I was able to finally narrow it down to the external USB enclosure causing my frequent crashes whenever large writes (particularly between drives) were underway. Nothing in any of the logs mentions the cause of the crash, and all of the usual UnRaid troubleshooting steps were fruitless. After finally narrowing it down, I was able to consistently reproduce the crashes using the "unbalanced" plugin on the community apps store. I kick off a 500gb transfer between two drives in enclosures and the server consistently hard crashes after a hundred or so gigs. I did it five times to be sure it was reliably unreliable. Googling led me to a number of unhelpful solutions until finally taking me to this thread, which contained the cure to my pain. I tried adding ``` usb_storage.quirks=174c:235c:u``` to the append in my boot config under the UnRAID boot drive UI and rebooted the system. Upon reboot I ran ```lsusb -t``` to verify the crashing drives now list "usb-storage" as their Driver, whereas beforehand it listed "uas". I crossed my fingers and ran the "unbalanced" test again with 500gb and it completed successfully for the first time. I nearly wept. for what its worth, my enclosure is the same as @iLaurens before me: the terramaster d6-320. I have it connected to the front USB3.1gen2 ports on a minipc using the cable that came with the device, and the thread @iLaurens linked above explains that my problem is likely due to insufficient power over the usb ports. In any case, the quirk works and that's good enough for me. Thank you to everyone on the thread for your comments. This has been driving me insane.