Dimensione su disco di un database MySql

sudo du -h /var/lib/mysql

 1,9G    /var/lib/mysql/rrrr
 9,7M    /var/lib/mysql/mysql
 1,1M    /var/lib/mysql/performance_schema
 8,0K    /var/lib/mysql/ttt
 676K    /var/lib/mysql/sys
 2,1G    /var/lib/mysql