D9-S2, an astromech droid owned by Zaryos, played a crucial role during the Jedi Colony's departure from Ossus. To Nadia Grell, Tau Idair, and the Alliance Commander, Zaryos made it clear that the colonists' departure was contingent on transferring their data to D9-S2, stressing the importance of their discovery of how to cultivate crops in a radioactive environment, a finding that would be extremely beneficial to the Republic.