I am in a pickle.
I have a server (physicals machine) that has a link between a directory and a partition. I don't see a symbolic link.
The problem is that the root partition shows 0% space. Even if I delete data from other directories it doesn't effect the root partition correctly.
I deleted 200MB and it showed 2MB of free space.
There is nothing in fastab.
The link is between /path/backups/ftp to /home/ftp/public_html
This is my df -h
devtmpfs 63G 0 63G 0% /dev
tmpfs 63G 0 63G 0% /dev/shm
tmpfs 63G 4.1G 59G 7% /run
tmpfs 63G 0 63G 0% /sys/fs/cgroup
/dev/mapper/centos-root 45G 45G 208K 100% /
/dev/sda1 1014M 194M 821M 20% /boot
/dev/sdb 4.3T 89M 4.1T 1% /path/vms
/dev/sdc 11T 7.5T 2.9T 73% /path/backups
tmpfs 13G 0 13G 0% /run/user/0
this is fastab file:
#
# /etc/fstab
# Created by anaconda on Tue Nov 17 22:49:51 2020
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
/dev/mapper/centos-root / xfs rw,seclabel,relatime,attr2,inode64,noquota 0 0
UUID=dca34673-80bb-4c10-a1ca-cd76167ebcf4 /boot xfs defaults 0 0
/dev/mapper/centos-swap swap swap defaults 0 0
/dev/sdc /path/backups ext4 defaults 0 2
/dev/sdb /path/vms ext4 defaults 0 2
This is my lsblk:
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 50G 0 disk
├─sda1 8:1 0 1G 0 part /boot
└─sda2 8:2 0 49G 0 part
├─centos-root 253:0 0 45G 0 lvm /
└─centos-swap 253:1 0 4G 0 lvm [SWAP]
sdb 8:16 0 4.3T 0 disk /path/vms
sdc 8:32 0 10.9T 0 disk /path/backups
I thought maybe it can be a hard link, but I can't find any proof of that, and also it should not be possible to hard link 2 directories.
Any ideas?
Edit:
The mtab contenct:
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0
devtmpfs /dev devtmpfs rw,nosuid,size=65906808k,nr_inodes=16476702,mode=755 0 0
securityfs /sys/kernel/security securityfs rw,nosuid,nodev,noexec,relatime 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,nodev,mode=755 0 0
tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0
cgroup /sys/fs/cgroup/systemd cgroup rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd 0 0
pstore /sys/fs/pstore pstore rw,nosuid,nodev,noexec,relatime 0 0
cgroup /sys/fs/cgroup/net_cls,net_prio cgroup rw,nosuid,nodev,noexec,relatime,net_prio,net_cls 0 0
cgroup /sys/fs/cgroup/hugetlb cgroup rw,nosuid,nodev,noexec,relatime,hugetlb 0 0
cgroup /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0
cgroup /sys/fs/cgroup/perf_event cgroup rw,nosuid,nodev,noexec,relatime,perf_event 0 0
cgroup /sys/fs/cgroup/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0
cgroup /sys/fs/cgroup/memory cgroup rw,nosuid,nodev,noexec,relatime,memory 0 0
cgroup /sys/fs/cgroup/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/cpu,cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpuacct,cpu 0 0
cgroup /sys/fs/cgroup/pids cgroup rw,nosuid,nodev,noexec,relatime,pids 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0
configfs /sys/kernel/config configfs rw,relatime 0 0
/dev/mapper/centos-root / xfs rw,relatime,attr2,inode64,noquota 0 0
systemd-1 /proc/sys/fs/binfmt_misc autofs rw,relatime,fd=25,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=12844 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
mqueue /dev/mqueue mqueue rw,relatime 0 0
hugetlbfs /dev/hugepages hugetlbfs rw,relatime 0 0
/dev/sda1 /boot xfs rw,relatime,attr2,inode64,noquota 0 0
/dev/sdb /path/vms ext4 rw,relatime,data=ordered 0 0
/dev/sdc /path/backups ext4 rw,relatime,data=ordered 0 0
sunrpc /var/lib/path/rpc_pipefs rpc_pipefs rw,relatime 0 0
nfsd /proc/fs/nfsd nfsd rw,relatime 0 0
/dev/sdc /home/ftp/public_html ext4 rw,relatime,data=ordered 0 0
binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,relatime 0 0
tmpfs /run/user/0 tmpfs rw,nosuid,nodev,relatime,size=13183736k,mode=700 0 0
I have /dev/sdc mounted twice.
It makes stuff work funny.
I see this in this lines:
/dev/sdc /path/backups ext4 rw,relatime,data=ordered 0 0
/dev/sdc /home/ftp/public_html ext4 rw,relatime,data=ordered 0 0
The storage problem and also I see that it shows 97% use of inodes, even though there is not so many files actually there.
mount, there could be bind mounts that actually really allow share storage without links; however, I suspect you just faced with ordinary file system overflow, nothing special. This also may be caused by lost inodes; perform a file system check (this is root fs, you will need to reboot the machine; assure it has enoungh space to return). This may be caused by deleted files still opened (so there is no name, but there is still an inode), to release them, kill processes that are keeping them.findmnt(check unix.stackexchange.com/questions/295525/…). Also, this has nothing to do with your root file system overflow. Investigate that withdu -sh *descend, as the answer below suggests.