Hey guys. I use 4 Seagate drives (8 TB Sata Enterprise v5). They aren't raids but are each a different drive that I use - Drive 1, Backup to Drive 1, Drive 2, Backup to Drive 2. I inserted the backup drives in Orico's 2 bay hdd docking station (model: 6629US3) a week back in my MacBook Pro 16' 2020 that I had updated to Big Sur 2 weeks back. The hard drives Back up 1 & Back up 2 didn't show connectivity. I assumed it's the docking station’s error, I kept the drives back on a table to resolve issue later. The only change in anything is I upgraded to Big Sur from Catalina, rest is all as it was. 2 days ago, I switched On my Main drive 1 & Main drive 2 (not raid), which are always connected but they showed no response. The hard drives is showing as disk2s2 and disks2s3 on the left panel in Disk Utility. I tried mounting it, no response. I tried mounting it through terminal command, didn’t work. (Could not mount ‘disk2s2’ .com.apple.Diskmanagement.dis enter error -119930868) I tried repairing it through First Aid, error. (First Aid process has failed. If possible, back up the data on this volume, etc) I then called on a technician in the city, a hardware expert, he claims that it may be the OS of the drive that's corrupt and needs reinstallation for which he asked me to write to Seagate. (The only explanation I think) HDD Docking station is working fine on other drives. I have 2 HDD Docking stations. Both are working fine. I have tried to switch USB cables, electric cables on the docking stations. I have tried different power supplies. I have tried the drives on Big Sur, Catalina and Sierra. No luck. I have tried it on Intel MacBook Pro 16' 2020 (BigSur), MacBook Pro 2015, MacBook Pro 2015 late, MacBook Air 2012 (Catalina), MacBook Pro 2011 (Sierra). The drives have been in the studio and nobody handles them but me. Drives haven't been physically damaged or repaired or any of that. Mostly AC is On in the studio. When I connect the drives, the drives switch on and there’s regular movement inside it seems. They’re heating up the usual way, the inside disc seems to roll regularly. The drives have my career long data in them and I think I did everything right in the textbook and made backups. I have to recover them - there’s no way I can quit on them or I can erase them. How can 4 drives stop working like that. It’s not like the data has any corporate espionage. I’m a Producer. Either it’s some weird issue with Seagate or Big Sur or inter dimensional beings are messing up with me. Help, help, help.