Cache Drive: btrfs Unmountable No file system

[zarken]

i need some help im soso with linux so any help would be appreciated. Currently im having a problem with my cache drive see screenshot below. i have tried replacing the cache drives with others i have and i still get the unmountable error. i have tried booting into maintenance mode and running the repair and it said it had no errors.

[zarken]

i should mention this started happening earlier in the week after a power outage. i used to have 2 SSDs in raid 1 i have since removed one thinking it might have been the issue but now it seems to be more along the lines of anything assigned to cache. 

[JorgeB]

Please post your diagnostics: Tools -> Diagnostics

[zarken]

please see attached diagnostics. also from some of my searching i noticed a lot people had issue cleared up by replacing drive with precleared drive i just tried that and it didnt work. when i preclear i had selected the erase and clear option it took over a day to run....should note after i hit format drive as well it looks like the format starts but quits shortly after

unraid-plex-diagnostics-20180725-2141.zip

[JorgeB]

Syslog is flooded with wrong csrf_token errors and preclear PHP warnings, close any stale browsers open, removed the preclear plugin and reboot, then try to format cache and post new diags.

[JorgeB]

If you want before doing that you can try clearing the SSD with blkdiscard and see if it works, (you shouldn't used preclear on SSDs).

 

blkdiscard /dev/sdX

 

Replace X with correct identifier.

[zarken]

ok i tried the blkdiscard /dev/sdi it didnt work. i removed preclear heres the new diag

unraid-plex-diagnostics-20180726-1933.zip

[JorgeB]

Strange, cache is formatting correctly, change cache slots to 1 and see if it mounts, if not please post new diags after trying.

[zarken]

thanks for help i ended up just wiping the unraid flash drive and starting fresh. it worked perfectly after that.