1. A computing device comprising: an interface configured to interface and communicate with a dispersed or distributed storage network (DSN); memory that stores operational instructions; and a processing module operably coupled to the interface and to the memory, wherein the processing module, when operable within the computing device based on the operational instructions, is configured to: detect a commissioned storage unit (SU) that was previously non-commissioned within a plurality of storage units (SUs) that are implemented within the DSN; identify at least some of the plurality of SUs that include commissioned SUs among the plurality of SUs; identify a SU topology of the at least some of the plurality of SUs; select a subset of the at least some of the plurality of SUs based on the SU topology based on a favorable condition of the commissioned SU that was previously non-commissioned within the plurality of SUs, wherein the favorable condition includes at least one of a physical proximity of the commissioned SU that was previously non-commissioned within the plurality of SUs favorably comparing to a physical proximity threshold, a virtual proximity of the commissioned SU that was previously non-commissioned within the plurality of SUs favorably comparing to a virtual proximity threshold, a bandwidth availability of the commissioned SU that was previously non-commissioned within the plurality of SUs favorably comparing to a bandwidth threshold, or a performance level of the commissioned SU that was previously non-commissioned within the plurality of SUs favorably comparing to a performance threshold; obtain SU address range assignments of the subset of the at least some of the plurality of SUs; and facilitate assignment of a SU address range for the commissioned SU that was previously non-commissioned within the plurality of SUs based on the SU address range assignments of the subset of the at least some of the plurality of SUs.