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

[basketmen]

Suddenly few hours ago mysql not working & cant open cpanel & whm, get this message :

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.

then i try reboot from ssh

now whm can opened
but cpanel still get above message & mysql still not working

in WHM > Service Status is like this, Mount Point of / and /var/tmp are 100% :

/tmp /var/tmp 100% (51,076,156 of 51,475,068)
/dev/mapper/vg_server-lv_root / 100% (51,076,156 of 51,475,068)
/dev/mapper/ddf1_hdjalka /boot 26% (119,847 of 487,652)
/dev/mapper/vg_server-lv_home /home 21% (82,161,980 of 421,349,968)

can you please help solve this? i already tried by my self but still cant fix this
this is the first time got this problem since installing cpanel a month ago

 

[24x7server]

Hello ,

Your main / partitions is 100% full and due to that you are getting this issues, Can you please login your server and let me know following command output so that I can assist you on this.

cd /

du -sch * --exclude=home

 

[basketmen]

problem solved by cpanel support, its because backup path is in /backup
i am moving it to /home/backup now

 

[cPanelMichael]

Hello

I am happy to see the issue is now resolved. Thank you for updating us with the outcome.

 

[jmcabandara]

problem solved by cpanel support, its because backup path is in /backup
i am moving it to /home/backup now

How to do this ?