The Pernaia system was a planetary system. A planet in this system, Pernaia Prime, had a single frozen moon which could support life. Located on this moon, there was a bar frequented often by traders and smugglers.
In 2152, the Vulcan Ministry of Security tracked a Vulcan fugitive, Menos, to the system. Since the original officer that was sent to track him down, T'Pol, was in the vicinity, they sent her after him. She was successful in finding him and bringing him back to Vulcan, however he had caused a large fire in the bar on Pernaia's frozen moon. (ENT: "The Seventh")