GossamerSolid

Ok I tried the restore options, always the same error that no valid btrfs found. At least I have a week old backup of my 3 VMs. I guess I can restore from those and re-do the changes I made. All of my docker instances are gone, though. While I have your attention, what is the best way for me to completely clean both of those NVMe drives and then re-setup the cache so that it's only 1 of them?

Running that command yields: No valid Btrfs found on /dev/nvme1n1p1 Open ctree failed

Sorry, yes, I did mean raid0 (striped, I believe it's also called?) I've attached the diagnostics to the thread's attachments. I managed to get the drive to mount to a temporary point on the server using: mount -o degraded,usebackuproot,ro /dev/sdX1 /x From this faq. I'll wait for more instructions before mucking anything else up. odysseus-diagnostics-20210803-0842.zip

I think I might have accidentally killed my cache array, which is incredibly frustrating. For some background, my server has 2x1TB NVMe drives in the cache array (set in a RAID1 config so that the entire 2TB can be used). 3xxGB were being used. I'm about to setup a second unraid server and wanted to take 1 of the 2 drives over to the new machine. I looked up the instructions here and people said: - Shut down the array - Remove the drive you want to remove - Start the array All this did was make it fail to mount the cache. There were no progress bars or warnings about any activity happening otherwise. I then panicked and shut the array down again and put the 2nd drive back into the cache pool. Same thing, same error: "unmountable: no filesystem". When I do a btrfs fi show on the drive label, this is the output: warning, device 2 is missing Label: none uuid: f46e54ec-68b4-48d9-94c5-3b9039d0b25a Total devices 2 FS bytes used 373.74GiB devid 1 size 931.51GiB used 204.03GiB path /dev/nvme0n1p1 *** Some devices missing What troubles me here is that the used on disk 1 clearly doesn't match the used on the entire file system, which would tell me that now the entirety of my cache array is destroyed and unrecoverable. What did I do wrong and is there anything I can do to restore any amount of files?