In the "Status" menu you can get information about state of all system components.
To view information about any component, click on one of following links:
Tables - list of all flow tables,
sizes, number of rows etc.
Database - list of running
database processes, list of all database tables.
5.6.1. Engine
"Engine" submenu shows the state of PHP, SNMP, graphic library and
database library. If all components are functional in "Status" they
will be installed.