Does VTL usage drive during erase (bplaebl -erase process) ?

Hi All,

We run bplabel -erase on tapes in VTL to make them scrtach. During the process does VTL usage a tape drive (virtual) to erase  the tape or is it just a software process (no actuall hardware involved ?) Thanks

My script

 cat erase_media_tld33.ksh
for i in `cat /usr/openv/scripts/media_to_erase_tld33.list`
        do
                echo $i
                /usr/openv/netbackup/bin/admincmd/bplabel -erase -m ${i} -d hcart2 -o -p scratch -host london01

done

cat /dev/null > /usr/openv/scripts/media_to_erase_tld33.list