A memory module is coupled to a number of controllers. The memory module is configured to configure each of a number of data input/output ports thereof as at least one of an input and an output in response to a first command from a particular controller of the controllers. The memory module is configured to partition itself into memory partitions in response to a second command from the particular controller so that each memory partition corresponds to a respective one of the controllers. Each of a number of data input/output ports of the controllers is configurable as at least one of an input and an output to correspond to a respective one of the input/output ports of the memory module. The first and second commands may originate from the particular controller, or the controllers may be coupled in parallel to the memory module.