We backup our OLD Tru64 UNIX system (Digital UNIX 4.0F) to DDS3 tapes using the dump
command. We want to recycle those tapes to make future backups on when they get too old. I've found the mt erase
command won't erase them, probably because the dump command puts blocks on the tape and it's no longer raw.
What's a simple way to erase the tape?