I have a server, CentOS 7, that show disk usage on DF way higher than you can see on DU and I trying to understand why
DF shows 38GB used DU shows 14GB
There is no mount point on any folder
Checking LSOF for deleted files, there are couple, but nothing big, around 2GB files deleted, what leave us with around 20GB used by "only god knows what"
Any idea how to identify it?
DF
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/ol-root 45G 38G 6.9G 85% /
devtmpfs 12G 0 12G 0% /dev
tmpfs 12G 140K 12G 1% /dev/shm
tmpfs 12G 265M 12G 3% /run
tmpfs 12G 0 12G 0% /sys/fs/cgroup
/dev/sda1 497M 310M 188M 63% /boot
tmpfs 2.4G 0 2.4G 0% /run/user/0
tmpfs 2.4G 0 2.4G 0% /run/user/99200048
tmpfs 2.4G 0 2.4G 0% /run/user/99200006
DF
1:> du -sxh
13G .