I figure this might be a good place to point me in the right direction.

We have an exabyte 215M tape library with 2 M2 tape drives.

In netbackup i can configure each tape drive to accept one stream, 
therefore cutting my backup by 1/2 the time because both tapes are being 
written to at the same time.

How do i get both tapes written to under arcserve 2000 when using a single 
job?

Thanks

Karl