Hello,
I have a tape drive on my server for backups:
root@mercury [~]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: HP Model: C7438A Rev: V312
Type: Sequential-Access ANSI SCSI revision: 03
root@mercury [~]#

I have tried to delete the contents of a tape by typing:

rm -rf /dev/st0 *

So as you guessed I actually deleted the contents of the folder st0.
How can I take back this mistake?
What's the command for deleting the content of tapes?
I'm on CentOS 3.7 i686, CPanel 10.
Thank you,
Rocco.