I have a partition which is almost filled up (/)
df -h
Filesystem Size Used Avail Use% Mounted on
udev 10M 0 10M 0% /dev
tmpfs 6.3G 675M 5.6G 11% /run
/dev/md2 20G 18G 534M 98% /
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/nvme0n1p1 510M 152K 510M 1% /boot/efi
/dev/md3 450G 44G 383G 11% /home
tmpfs 3.2G 0 3.2G 0% /run/user/0
tmpfs 3.2G 0 3.2G 0% /run/user/1001
I'm not able to find by what file / folder this space is taken
du -hs
35M boot
0 dev
4.8M etc
44G home
46M lib
4.0K lib64
8.0K media
4.0K mnt
216K opt
101M root
675M run
23M sbin
8.0K srv
0 sys
17M tmp
1.1G usr
426M var
sudo du -a / 2>/dev/null | sort -n -r | head -n 20 don't show me any "big" file on /
du -sm .[!.]* *
9 bin
35 boot
0 dev
5 etc
44590 home
46 lib
1 lib64
1 media
1 mnt
1 opt
0 proc
101 root
675 run
23 sbin
1 srv
0 sys
17 tmp
1091 usr
430 var
How can i find what is eating my disk space on / ?
In case it can help someone
It seems i had some removed log files which was still opened by some process
$ sudo find /proc/*/fd -ls | grep '(deleted)' | sort -rh | head -n 20
1269601869 0 lrwx------ 1 www-data www-data 64 Sep 7 15:32 /proc/6775/fd/19 -> /var/lib/nginx/body/0000000003\ (deleted)
8130039 0 l-wx------ 1 root root 64 Jul 12 2022 /proc/4739/fd/2 -> /etc/openvpn/openvpn.log\ (deleted)
8130038 0 l-wx------ 1 root root 64 Jul 12 2022 /proc/4739/fd/1 -> /etc/openvpn/openvpn.log\ (deleted)
By simply restarting the services (nginx & openvpn) it has free me up 17 GO