?how to force NDMP LAN-free backups to fill one tape before writing on another?

I am trying to force NDMP LAN-free backups to keep the same tape mounted and serially reuse it when a NetApp filer needs to write multiple backups. We have just implemented our first NDMP LAN-free backups w/ TSM v5.5.1.1, w/ a single NetApp filer backing up 16 VirtualFS from nightly snapshots,

Re: ?how to force NDMP LAN-free backups to fill one tape before writing on another?

Did you backup each filespace sequentially or all at once? I.E. serial backup node nas /fs1 mode=full wait=yes backup node nas /fs2 mode=full wait=yes backup node nas /fs3 mode=full wait=yes backup node nas /fs4 mode=full wait=yes backup node nas /fs5 mode=full wait=yes backup node nas /fs6