Hi,
There you have it, it is clearly not working.
I am not a wizard on this, and can only suggest that you need to find out if the E-Smith supports that drive. (I do not know where to find out, perhaps someone on this forum will offer an answer)
As one option, did you try configuring tape backup through the server manager interface? If the drive is supported, experiment setting the times in a fashion that you can observe what is happening.
Dan