The filesystem mounted at / on this server is running out of disk space.

[harmonia]

Hello,
my customers doesn't access their cPanels. it display the error below.

Sorry for the inconvenience!
The filesystem mounted at / on this server is running out of disk space. cPanel operations have been temporarily suspended to prevent something bad from happening. Please ask your system admin to remove any files not in use on that partition.


and disk usage is below.
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/md0 20G 20G 0 100% /
tmpfs 2.4G 0 2.4G 0% /dev/shm
/dev/md3 267G 56G 212G 21% /home
/dev/md2 267G 5.2G 262G 2% /var
/dev/md1 9.9G 153M 9.2G 2% /tmp


how can i solve this problem, help me please?

 

[troxalias]

You should delete old log files and generally files that eat up your space. I would recommend you to check /var/log and /usr/local/apache/logs for old log files. You should also check for core dumps from your kernel.

 

[harmonia]

You should delete old log files and generally files that eat up your space. I would recommend you to check /var/log and /usr/local/apache/logs for old log files. You should also check for core dumps from your kernel.

i deleted old log files /var/log. but it is not acted disk space.
what can i do for core dumps from my kernel. can you explain it please.

 

[troxalias]

First of all please execute the command
df -k
and post the results.

In order to search your filesystem for core dump files execute the command
find / -name core\.[0-9]\*

This command will list all the core dump files on your system. If you find any delete them. You can force a delete automatically with the command
find / -name core\.[0-9]\* -exec rm -f {} \;
BUT i do not recommend you to use it if you are not absolutely sure how this command works.

 

[harmonia]

thank you for help.
i solved my problem. wrong backup configuration has been coused it
but i learned something (core) different , thanks troxalias