How can you backup your SQL file

[narc0s]

So if i do the dump in my vps i get only like 20MB sql file but one of my friend was able to backup the entire forum meaning the board the user everything in one sql file and it was around 500+ MB but when i dump it's only 20MB so how can i dump the entire forum which will have everything like icons that i changed and text or post that i made etc