How to monitor MySQL space?

Question

I downloaded a VM image of a web application that uses MySQL.

How can I monitor its space consumption and know when additional space must be added?

Answer 1

Since you have VM and you don't really care how the space is used, I think the simplest way is to check the size of MySQL data dir. By default it is /var/lib/mysql. Also it`ll be nice to cleanup the mysql binary logs (if possible) before checking data dir size.