A method for accessing blocks of a solid state drive is described. A starting position is received. The starting position identifies a first block (312) of a contiguous block region (310) within a namespace (300) of the solid state drive (200) to be accessed according to a single input/output operation. The namespace (300) comprises two dimensions of logical address space with respective indices for indexing blocks within a corresponding dimension of the logical address space. A first dimensional identifier that identifies a size of the contiguous block region (310) in a first dimension of the namespace and a second dimensional identifier that identifies a size of the contiguous block region (310) in a second dimension of the namespace is received. Blocks of the contiguous block region are accessed in response to the single input/output operation according to the starting position, the first dimensional identifier, and the second dimensional identifier.