The invention relates to a storage and retrieval system having at least one mast, which is supported at its lower mast end on a running rail via at least two running wheels and can be moved along the running rail guided by at least one driven running wheel of the running rail, having a guide rail (2), which is arranged in the region of the upper mast end (1) and extends parallel to the running rail, having guide rollers, which are mounted such that they can rotate at the upper mast end (1) and bear against the guide rail (2) on both sides so as to guide the mast. In order to damp the mast oscillations occurring during movement, at least one friction roller (4) is provided that rolls on the guide rail (2) and an eddy current brake (7) is provided that is driven by the friction roller (4).