Methods and apparatus for managing a pool of I/O interfaces associated with one or more I/O devices are disclosed. The I/O bandwidth utilization of the I/O devices is ascertained and compared with an upper threshold and a lower threshold. When the I/O bandwidth utilization is greater than the upper threshold, the resources provided by the pool of I/O interfaces are increased. When the I/O bandwidth utilization is less than the lower threshold, the resources provided by the pool of I/O interfaces are decreased.