you won't want to hear this. You will say "isn't there a cheaper way". LTO is very slow, by the way.
Get an ATTO Thunderlink box that will go from Thunderbolt to MiniSAS. Yes - ATTO only, because other brands won't see the HP Ultrium LTO drive. Then get software, like Tolis Group BRU, or Imagine Products PreRoll Post, that can work with the LTO.
Is all of this expensive - yes. Is there a cheaper way - no.