1. A method comprises: receiving data for storage; interpreting the data to identify the data as redundant array of independent disks (RAID) data; interpreting the RAID data to identify at least one of RAID block data and RAID parity data; and when the RAID data includes RAID block data and RAID parity data: encoding the RAID block data in accordance with error coding dispersal storage function parameters to produce at least one set of encoded data slices; and outputting the at least one set of encoded data slices to a dispersed storage network (DSN) memory.