Tape Analyser is a utility that must be run from the command line of the Media agent that controls the drive
You must manually load a tape into the drive (without knowing the Drive Index number, I can't tell you which drive). From the MS-DOS prompt on the media agent
cd \Program Files\Omniback\bin
TapeAnalyser -device [scsi path to drive] -summary
For example
TapeAnalyser -device scsi4:0:1:0 -summary
-summary : Gives a tape format summary
After changing to that directory, if you run the command:
TapeAnalyser -help
you will get a synopsis of all the arguments you can use