On Mon, 29 Jun 2020 15:21:12 +0530 Sachchidanand Upadhyay via CentOS <centos at centos.org> wrote: > Hi, > > While checking with df -h, it's showing the used space is 94% on > root (/). If checked with du -sh, it's not showing the used space. > > # df -h > Filesystem Size Used Avail Use% Mounted on > devtmpfs 7.8G 0 7.8G 0% /dev > tmpfs 7.8G 0 7.8G 0% /dev/shm > tmpfs 7.8G 857M 7.0G 11% /run > tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup > /dev/mapper/centos-root 50G 47G 3.4G 94% / > /dev/mapper/centos-home 241G 47G 195G 20% /var/log > /dev/sda1 1014M 189M 826M 19% /boot > tmpfs 1.6G 0 1.6G 0% /run/user/0 > tmpfs 1.6G 0 1.6G 0% /run/user/1002 As an addition to what others have already said. You'll also miss things "hidden under mounts". That is, if you had 5G in /var/log on the root file system and then mounted a different device on /var/log, then that 5G would still be there but invisible. Also, /dev/mapper/centos-home, HOME?!, on /var/log? /Peter