How to clean up a Linux drive?

Question

linux

Hello, do you have a zabbix virtual machine? Zabbix recently stopped working and gives the following message
When asked about the amount of free disk space, I found that the disk is 100% busy,

tell me how to clear the data on the disk?

Answer 1

Obviously delete unnecessary files.
This command can help, see mana for what it does
sudo du -h -d 1 /

Answer 2

Try ncdu.
ncdu /

Answer 3

Most likely the zabbix database ate all the free space. I propose to dump the database, delete the database, mount another larger virtual disk and place the database there. And also set up data collection in Zabbix, with the default settings, the place is quickly eaten up.