I am running Centos 7 and have an issue that the server ran out of space, was able to get in after a bad reboot and cleared temp files. Then cleared backups and server was back.
Since then I spotted that the disk size from the monitoring was actually going down, not what I expected. Since then the negative size is increasing.
Filesystem Size Used Avail Use% Mounted on
devtmpfs 16G 0 16G 0% /dev
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 16G 164M 16G 2% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/mapper/centos-root 498G -41G 539G - /
/dev/sda1 509M 312M 198M 62% /boot
tmpfs 3.2G 0 3.2G 0% /run/user/997
tmpfs 3.2G 0 3.2G 0% /run/user/10005
tmpfs 3.2G 0 3.2G 0% /run/user/0
[root@srv ~]# Filesystem Size Used Avail Use% Mounted on
tmpfs 16G 164M 16G 2% /run
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/mapper/centos-root 498G -41G 539G - /
/dev/sda1 509M 312M 198M 62% /boot
tmpfs 3.2G 0 3.2G 0% /run/user/997
tmpfs 3.2G 0 3.2G 0% /run/user/10005
tmpfs 3.2G 0 3.2G 0% /run/user/0
