Hello. I did a very, very, very silly thing.
I ran fio on the block device on my Arch Linux OS drive, a 500GB 970 Evo.
I did not understand my colossal ef-up at the time and I rebooted.
I am now on an Ubuntu live USB disk having completed a full dd of the drive to my NAS.
The fio was programmed to run 4GB of random 4K writes on the drive. Needless to say it wreaked quite the havoc.
There are no partitions visible on the drive. I set my OS up as per the Arch Wiki.
I think I did /boot, /root, /home, /swap in this particular order. I don’t really remember the sizes of the partitions.
Anyone interested in helping me with some tech support?