A method for execution by a dispersed storage and task (DST) execution unit includes generating location weight data that includes a plurality of location weights assigned to a plurality of memory devices of the DST execution unit. A first one of the plurality of memory devices and a second one of the plurality of memory devices are selected for reallocation based on the location weight data. The reallocation is executed by removing a data slice from the first one of the plurality of memory devices and storing the data slice in the second one of the plurality of memory devices.