Rebalancing data storage in a dispersed storage network

A processing system of a dispersed storage and task (DST) execution unit comprises:

• at least one processor;
• a memory that stores operational instructions, that when executed by the at least one processor cause the processing system to:
• determine a plurality of location weights assigned to a plurality of memory devices of the DST execution unit;
• generate a ranked plurality of scores by performing a deterministic function on an identifier of a data slice and on the plurality of location weights;
• selecting a first one of the plurality of memory devices in response to determining the data slice is stored in the first one of the plurality of memory devices;
• selecting a second one of the plurality of memory devices in response to determining a highest ranked one of the ranked plurality of scores corresponds to the second one of the plurality of memory devices;
• remove the data slice from the first one of the plurality of memory devices;
• and
• store the data slice in the second one of the plurality of memory devices.

A non-transitory computer readable storage medium comprises:

• at least one memory section that stores operational instructions that, when executed by a processing system of a dispersed storage network (DSN) that includes a processor and a memory, causes the processing system to:
• determine a plurality of location weights assigned to a plurality of memory devices;
• generate a ranked plurality of scores by performing a deterministic function on an identifier of a data slice and on the plurality of location weights;
• selecting a first one of the plurality of memory devices in response to determining the data slice is stored in the first one of the plurality of memory devices;
• selecting a second one of the plurality of memory devices in response to determining a highest ranked one of the ranked plurality of scores corresponds to the second one of the plurality of memory devices;
• remove the data slice from the first one of the plurality of memory devices;
• and
• store the data slice in the second one of the plurality of memory devices.