A method includes obtaining, by a computing device, a plurality of sets of encoded data slices for storage in memory of a dispersed storage network (DSN). The method further includes identifying, by the computing device, a desired set of storage units within pools of storage units for storing the plurality of sets of encoded data slices. The method further includes generating, by the computing device, a specific source name based on the desired set of storage units and a distributed agreement protocol (DAP). The method further includes generating, by the computing device, a plurality of sets of slices names that includes the specific source name. The method further includes sending, by the computing device, a plurality of sets of write requests to the desired set of storage units regarding the plurality of sets of encoded data slices and in accordance with the plurality of sets of slice names.