Ok so I got the same problem today. It seems when my cache mount (1x250gb samsung evo drive) reaches 54% usage, unRAID somehow thinks it's 100% full (based on the output from df -h). Then everything goes haywire; VM's stopping, certain docker applications stops and I'm unable to reboot. Once i delete some stuff and it goes below 53% usage it's fine again.
I'm on latest RC5, it happened on RC3 & RC4 aswell.
I've tried:
Scrubbing (with/without error fixing)
SMART test
SMART Extended test
Parity Check
Rebooted several times
None of these reports any errors. Anybody has an idea of what could be wrong?
Anybody knows what this issue could be?