A nonvolatile-memory-management includes a generation unit that generates a free block list by arranging an entry including representative information of a group, of which free blocks adjacent to each other are grouped according to predetermined criteria, according to key values where the representative information are combined, a determination unit that determines parameters according to characteristics of data to be recorded, and a block-allocating unit that allocates free blocks satisfying the parameters as an area to be recorded with the data by referring to the free block list.