The t-rew command rewinds the attached media to the beginning of, or load point on, the tape.
t-rew
t-online
If the tape unit has not been attached, the t-rew command completes these actions:
Use the t-rew command when you want to not only attach the unit to the process, but reset and rewind a physical tape. It can also be used to ensure that the attaching procedure has been completed successfully.