asdoify 大佬有话说 :
HETZNER组的软RAID 0,没办法调Reserved block?
$ parted -l | grep md3
Disk /dev/md3: 960GB
$ tune2fs -l /dev/md3 | grep -i ‘Reserved block count’
Reserved block count: 5120
$ df -h | grep md3
/dev/md3 880G336G544G39% /home
默认都是5%,调成20M,但是空间没释放出来。SSD可是寸土寸金。1TB的空间白白浪费50G。