mean swaps between failure (MSBF)

Mean Swaps Between Failure (MSBF) is a key figure that characterizes the reliability of jukeboxes, JBOD systems and autoloaders. The MSBF figure is determined from the average number of error-free swap cycles. For example, if a jukebox switches between media one hundred thousand times and an error occurs, then the MSBF value is `1*10^-5`, i.e. one error in 100,000 switches.