Datriux is a small rock and ice planet with an extremely thin nitrogen-based atmosphere. Exploited for its metal deposits, the planet's iridium was marked as part of Palaven's strategic reserve during the Krogan Rebellions. Its facilities have been maintained to this day.
Scans indicate the Reapers did not destroy the surface facilities. It is possible they either did not see them as a threat, or plan on using them for their own purpose. A few Reaper destroyers serve as a skeleton crew here, backed by a capital ship in case the turians attempt to retake the planet.
Mass Effect: Infiltrator·The Final Hours of Mass Effect 3·Galactic Codex: Essentials·Mass Effect Galaxy·Revelation·Ascension·Retribution·Redemption·Evolution
Soundtracks
Mass Effect Original Soundtrack·Mass Effect 2 Original Videogame Score [Atmospheric·Combat·Kasumi's Stolen Memory·Overlord·Lair of the Shadow Broker] ·Mass Effect 3 Original Videogame Score [Extended Cut·Citadel·Leviathan] ·Mass Effect: Andromeda - Original Soundtrack