Tape Drive Error - Hardware error

Hi all, I'm having a trouble to backup my data for a HP StorageWorks Ultrium 920. It gave me back some logs, I searched about it and didn't found anything helpful. There's some below:

Erro final: 0xe00084ed - Ocorreu um erro de hardware.

V-79-57344-34029 - Ocorreu um erro de hardware.

"Ocurred an hardware error" that is what is written. Somebody knows what is it can be ? 
I tried to test my Tape Drive but I didn't find how can I do it. 

Sorry for my terrible english.