1. A method for execution by a computing device, the method comprises: receiving first data for storage in a vault of a dispersed storage network (DSN) memory, wherein the DSN memory includes a plurality of storage nodes, wherein the vault is a virtual memory within the DSN memory and includes multiple storage nodes; selecting, for storing the first data in the vault, a first vault parameter set from a plurality of vault parameter sets associated with the vault, wherein the first vault parameter set includes a first per set decode threshold and a first total number of encoded data slices per set regarding dispersed error encoding data segments of the first data; encoding the data segments of the first data in accordance with the first vault parameter set to produce a first plurality of sets of encoded slices; outputting the first plurality of sets of encoded data slices for storage in the vault; receiving second data for storage in the vault of the DSN memory; selecting, for storing the second data, a second vault parameter set from the plurality of vault parameter sets associated with the vault, wherein the second vault parameter set includes a second per set decode threshold and a first total number of encoded data slices per set regarding dispersed error encoding data segments of the second data; encoding the data segments of the second data in accordance with the second vault parameter set to produce a second plurality of sets of encoded slices, wherein a set of encoded data slices of the first plurality of sets of encoded data slices includes less encoded data slices than a set of encoded data slices of the second plurality of sets of encoded data slices; and outputting the second plurality of sets of encoded data slices for storage in the vault.