Like it is mentioned in the technote:
Various things can cause such an error: losing power to the tape drive or server, a system or engine service crash, or a tape drive failure.
Check if there are any Event .ID 5,7,9,11 or 15
Following documents can help you further:
http://seer.support.veritas.com/docs/255501.htm
http://support.microsoft.com/default.aspx?scid=kb;en-us;154690
Regards,
Ashutosh
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