While in orbit, the STS-106 crew successfully prepared the International Space Station for the arrival of its first permanent crew. The five astronauts and two cosmonauts performed a space walk to connect power, data and communications cables to the newly arrived Zvezda Service Module and the station. The crew also delivered more than 2,993 kilograms (6,600 pounds) of supplies and installed batteries, power converters, a toilet and a treadmill on the station.