BigErn77

Aha, that explains it!

Whenever I copy files to any folder on the flash drive, it's gone on the next reboot. For example, I put a text file in /root, rebooted, and now it's gone. Same thing for other folders, like /usr/sbin. Is the flash drive cleared or something on every reboot? Is there a way to prevent that?

I ran reiserfsck on a disk. Errors were detected and it advised re-running with the --rebuild-tree option, so I did that and let it finish. This was the output: Flushing..finished Objects without names 446 Empty lost dirs removed 32 Files linked to /lost+found 446 Pass 4 - finished done 4485, 2242 /sec Deleted unreachable items 10157 Flushing..finished Syncing..finished How do I know if my files are OK or if they're corrupt? I don't see any lost and found folder. Can I assume that it was just the file tree that needed to be fixed, but the files themselves are OK?

So, if I'd installed a new disk in the disk 1 slot, it would have restored my data to it, but since I didn't, and it's now checking parity, it's now in the process of "confirming" the bad files to my parity drive? Also, maybe I was presumptuous in assuming that the files are corrupted. Maybe it was just the file tree that needed to be fixed, but the files themselves are OK?

Here's the sequence of events: 1. Unexpected power failure overnight, during a parity check 2. Started the Unraid machine 3. Brought array into maintenance mode 4. Performed a 'reiserfsck --check' on all 9 disks (not the parity drive of course) 5. All but one succeeded without error. On one disk, errors were detected and it advised re-running with the --rebuild-tree option, so I did that and let it finish. Here is the final output: Flushing..finished Objects without names 446 Empty lost dirs removed 32 Files linked to /lost+found 446 Pass 4 - finished done 4485, 2242 /sec Deleted unreachable items 10157 Flushing..finished Syncing..finished 6. Brought array down 7. Started a parity check The parity check is currently running. My question is: will that parity check restore whatever data was lost/damaged on that disk that had file system errors? Thanks! Unraid version: 6.8.3