Operation and Performance of the CMS Silicon Tracker

The CMS silicon tracker is the largest silicon detector ever built. It consists of a hybrid pixel detector with 66 million channels and a 200 $\mathrm{m}^{2}$ silicon strip detector with 9 million readout channels. These proceedings describe the successful operation of this detector during the first four years of the LHC. Results on the operational performance are presented. The resolution and efficiency of the track and vertex reconstruction are measured with data and compared to the results from simulation.