force tape to eject on aix

Hi,

I have a damaged tape that will not eject on aix.

How can i force this.

I tried tctl -f /dev/rmt0 offline

But i get the following error:
the media surface is damaged

the command looks good.

reply from other topic but not tested : mt -f /dev/rmt/0 unload

If the tape is really damaged, then a call to the technical support should be done to open the drive.