1. A method for write fan out with redundancy sharing in a dispersed storage network (DSN), the method comprises: dispersed storage error encoding, by a device of the DSN, a data segment of a data object into a set of encoded data slices; sending, by the device, a set of write fan out with redundancy sharing requests to a set of storage units of the DSN; and in response to the set of write fan out with redundancy sharing requests: storing, by the set of storage units, a number of copies of a decode threshold number of encoded data slices of the set of encoded data slices; and storing, by the set of storage units, a single copy of a redundancy number of encoded data slices of the set of encoded data slices.