We are currently on NW 6 & planning to migrate to NW 6.5, I'm wondering if
it would be possible to have volumes (SYS, Vol1 & Vol2) mirrored on 2 HDD in
the new box & a 3rd HDD with another additional unmirrored volume (Vol3)? My
idea is to use Vol3 for backup to HD & then backup to tape from there.

Any ideas or pointers to further info would be greatly appreciated.