I have used ntbackup tool to store the backup file to the tape.
then when i am trying to use the tape to restore database directly from tape
use master
restore database test
from tape='\\.\tape0'
Server: Msg 3143, Level 16, State 1, Line 2
The data set on device '\\.\Tape0' is not a SQL Server backup set.
Server: Msg 3013, Level 16, State 1, Line 2
RESTORE DATABASE is terminating abnormally.