What can eat up hosting space?

Question

CentOS

I must say right away that hosting support does not give clear answers, it says that the database takes all this!
We have:
VPS with Centos operating system
Disk space 280 GB
It has only one database, but about 230 GB instead of all indexes and tables.
The script for working with the database weighs only 1 MB. There is nothing else, no sites, no pictures, no other files. DB only. Logs have been cleaned up.
And the free space shows only 20 GB, where did the other 30 GB go? memory. Well, I understand that the operating system itself weighs a lot, some system files. The du command finds only the /var/lib/mysql/ directory, the total weight of the database folder is 229 GB. No other large directories found

Answer 1

Operating system and logs.
Usedu -h --max-depth=1 /var

Answer 2

Try also to select all the tables in the database and click optimize, it happens that the place is freed up, especially in such a fat database as yours