O&O DriveLED - Version 2.0 The new O&O DriveLED permanently monitors the status of your hard disks in the background. With the help of S.M.A.R.T. (Self Monitoring, Analysis, and Reporting Technology), O&O DriveLED analyses internal information of your hard disks and warns you in case of upcoming problems.O&O DriveLED also shows the status of your hard disks in the Windows task bar.