STORAGE SYSTEM AND SOLID STATE HARD DISK

An embodiment of the present invention provides a storage system, including a controller and a solid state disk. The solid state disk includes multiple channels, and each channel is connected to multiple dies. The controller creates multiple segments in advance; selects a first die from the multiple dies; selects a first segment from the multiple segments, and determines an available offset of the first segment; generates a write request, where the write request includes a write address, target data, and a data length of the target data, and the write address includes an identifier of a channel connected to the first die, an identifier of the first die, an identifier of the first segment, and the available offset; and sends the write request to the solid state disk. The solid state disk receives the write request, and stores the target data according to the write address and the data length. In the storage system provided by the present invention, the controller can effectively use storage space of the solid state disk.