1. A storage system comprising: a non-volatile solid-state memory array comprising units of memory accessible via one or more data channels; and a controller in communication with the memory array via the one or more data channels, the controller configured to: maintain an assignment table comprising information related to a memory access configuration that: groups a plurality of physical addresses in the memory array into a plurality of logical groups, and associates a physical address number to each physical address, wherein the physical addresses in each logical group are distributed across the units of memory accessible via the one or more data channels; wherein physical address numbers for each of the plurality of logical groups are assigned to physical addresses that are accessible via different data channels on a rotating basis.