What is this monstrosity? Hardware raid 1? The device itself does raid?
Also, looks like it’s declared the drive as 512/512 sector size? I’ve once had a weird hdd dock that will make my hdd unreadable on other dock and corrupt my data if I write things to it, turns out it’s doing some weird sector size emulating
I don’t trust it, I think you better to buy 2 separated dock and SW raid them, at least if one blew up then you can still use another, don’t let the unknow power supply quality from this thing potentially kills both of your drive in the dock
Do not run chkdsk m8, you’re stressing it out
Pick files that are the most important first, keep copying and hope that your drive lasts until you’ve got it all.
Spin down the drive might render it inoperable the next time you plug it in