/ (93% used) has reached the WARNING level (90%) Filesystem 1024-blocks Used Available Capacity Mounted on tmpfs 3267680 960 3266720 1% /run /dev/md2 474046864 416805324 33091560 93% / tmpfs 5120 0 5120 0% /run/lock tmpfs 16338400 0 16338400 0% /sys/fs/cgroup /dev/md1 498532 378318 94051 81% /boot