=== Configure SMART information ===
Ref: [http://mewbies.com/how_to_install_phpsysinfo_nix_tutorial.html How to install phpSysInfo]
yum install smartmontools
You also need to change the plugin script and give apache permission to use smartctl with the sudo command:
(source http://mewbies.com/how_to_install_phpsysinfo_nix_tutorial.html)
Because the cmd 'smartctl' is only available to root; it will not work for your web server, we need to set some permissions on it and change the command it uses: