Есть сервер с Centos 7, якобы занято почти 100 ГБ:
[me@lis-dev ~]$ sudo df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 9,2M 16G 1% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/mapper/centos-root 98G 98G 73M 100% /
/dev/sda1 1014M 193M 822M 20% /boot
overlay 98G 98G 73M 100% /var/lib/docker/overlay2/b1a075811b73f5a736f9b2da4436bb2605774fe6f84685505106a83d6d5064d9/merged
overlay 98G 98G 73M 100% /var/lib/docker/overlay2/74f677bca78fcdb7c5e46082f8bdb69d43e77383f7a50ad87206d623a9ab3724/merged
overlay 98G 98G 73M 100% /var/lib/docker/overlay2/79ff1bab2c01fca82b1882fae32d038f13ea832c5fd93de6d2395dd90cb96968/merged
overlay 98G 98G 73M 100% /var/lib/docker/overlay2/02be25dba7b26a5cfc2a7fd889e6bd1b540d8feaa314c34a20fb281be9b0b381/merged
overlay 98G 98G 73M 100% /var/lib/docker/overlay2/9a347f3601865fc9b50ec620ed08754f01d301d825b7b573da96bac992c36731/merged
shm 64M 0 64M 0% /var/lib/docker/containers/b7e103b5e50abe6f1662361477a5ecaaad993ee04957eea336bfcac7b1854609/mounts/shm
shm 64M 8,0K 64M 1% /var/lib/docker/containers/c58865bed646c04b0dec11b20881342b7c9c10cd3c82226fdcf89bc96a978f63/mounts/shm
shm 64M 0 64M 0% /var/lib/docker/containers/1ff70fa7bf6361eb9d9f04de1812775294899105f6d26e3daa75f6a56f19598e/mounts/shm
shm 64M 0 64M 0% /var/lib/docker/containers/ee9a7961399a24b124f75cc4c96060e92c523532c9847fb47d605ae9e8bc898e/mounts/shm
shm 64M 8,0K 64M 1% /var/lib/docker/containers/dc5611b971097a10c8ec233a34cdf90a97f4fb3474bf0a3d9d67ef33fe58cd26/mounts/shm
overlay 98G 98G 73M 100% /var/lib/docker/overlay2/80b8e19cf335f20ed58f385524bb6a7ce3eb748003966453fac877c413ddcd08/merged
shm 64M 0 64M 0% /var/lib/docker/containers/945ec19803d91f6d04f9d96fca9d07ec3a34e0f92e3b6bfcf92b9702058b21b6/mounts/shm
tmpfs 3,2G 0 3,2G 0% /run/user/1000
Но файлов, которые бы заняли столько места, нет:
[me@lis-dev ~]$ sudo du -hcs /* | sort -h
du: cannot access ‘/proc/2571/task/2571/fd/4’: No such file or directory
du: cannot access ‘/proc/2571/task/2571/fdinfo/4’: No such file or directory
du: cannot access ‘/proc/2571/fd/4’: No such file or directory
du: cannot access ‘/proc/2571/fdinfo/4’: No such file or directory
0 /bin
0 /dev
0 /lib
0 /lib64
0 /media
0 /mnt
0 /opt
0 /proc
0 /sbin
0 /srv
0 /sys
4,0K /tmp
1,2M /root
2,2M /home
9,2M /run
36M /etc
161M /boot
1,6G /usr
12G /var
14G total
«Удалённых файлов» тоже нет:
[me@lis-dev ~]$ sudo lsof | grep -i delete
lsof: no pwd entry for UID 100
lsof: no pwd entry for UID 100
[....]
inodes:
[me@lis-dev ~]$ sudo df -i
Filesystem Inodes IUsed IFree IUse% Mounted on
devtmpfs 4094627 352 4094275 1% /dev
tmpfs 4097570 1 4097569 1% /dev/shm
tmpfs 4097570 625 4096945 1% /run
tmpfs 4097570 16 4097554 1% /sys/fs/cgroup
/dev/mapper/centos-root 654744 505624 149120 78% /
/dev/sda1 524288 334 523954 1% /boot
overlay 654744 505624 149120 78% /var/lib/docker/overlay2/b1a075811b73f5a736f9b2da4436bb2605774fe6f84685505106a83d6d5064d9/merged
overlay 654744 505624 149120 78% /var/lib/docker/overlay2/80b8e19cf335f20ed58f385524bb6a7ce3eb748003966453fac877c413ddcd08/merged
overlay 654744 505624 149120 78% /var/lib/docker/overlay2/74f677bca78fcdb7c5e46082f8bdb69d43e77383f7a50ad87206d623a9ab3724/merged
overlay 654744 505624 149120 78% /var/lib/docker/overlay2/79ff1bab2c01fca82b1882fae32d038f13ea832c5fd93de6d2395dd90cb96968/merged
overlay 654744 505624 149120 78% /var/lib/docker/overlay2/9a347f3601865fc9b50ec620ed08754f01d301d825b7b573da96bac992c36731/merged
overlay 654744 505624 149120 78% /var/lib/docker/overlay2/02be25dba7b26a5cfc2a7fd889e6bd1b540d8feaa314c34a20fb281be9b0b381/merged
shm 4097570 1 4097569 1% /var/lib/docker/containers/b7e103b5e50abe6f1662361477a5ecaaad993ee04957eea336bfcac7b1854609/mounts/shm
shm 4097570 2 4097568 1% /var/lib/docker/containers/dc5611b971097a10c8ec233a34cdf90a97f4fb3474bf0a3d9d67ef33fe58cd26/mounts/shm
shm 4097570 1 4097569 1% /var/lib/docker/containers/945ec19803d91f6d04f9d96fca9d07ec3a34e0f92e3b6bfcf92b9702058b21b6/mounts/shm
shm 4097570 1 4097569 1% /var/lib/docker/containers/1ff70fa7bf6361eb9d9f04de1812775294899105f6d26e3daa75f6a56f19598e/mounts/shm
shm 4097570 2 4097568 1% /var/lib/docker/containers/c58865bed646c04b0dec11b20881342b7c9c10cd3c82226fdcf89bc96a978f63/mounts/shm
shm 4097570 1 4097569 1% /var/lib/docker/containers/ee9a7961399a24b124f75cc4c96060e92c523532c9847fb47d605ae9e8bc898e/mounts/shm
tmpfs 4097570 1 4097569 1% /run/user/1000
Скрытых файлов нет в '/':
[me@lis-dev ~]$ sudo ls -a /
. .. .autorelabel bin boot dev etc home lib lib64 media mnt opt proc root run sbin srv sys tmp usr var
XFS.
CentOS Linux release 7.8.2003 (Core).
Reboot не помогает.