To provide a nonvolatile storage device for allowing a host device to obtain a physical state of a nonvolatile memory and alternately write a plurality of files with a small buffer size at a high speed, and to provide the host device and a non-volatile storage system.
The non-volatile storage system 1000 sets an allocation unit in consideration of data write order, and manages a memory region for address conversion or the like in units of the allocation unit. In the non-volatile storage system 1000, the nonvolatile storage device 1 and host device 2 manage the state of the physical allocation unit of the nonvolatile memory, based on continuous write allocation unit information, and controls write based on the state of the physical allocation unit, to enable high-speed data write.
MAEDA TAKUJI
SO HIROKAZU
