Access device

The embodiment of the invention discloses an access device, which is used for realizing access between a single-port SSD (Solid State Disk) and a full flash memory array and ensuring that data is notlost in an access process. The access device provided by the embodiment of the invention comprises a first controller, a connector, a second controller and a single-port solid state disk SSD, the connector is used for connecting the first controller and the second controller; and the second controller is used for controlling the single channels of the N single-port SSDs to be combined into doublechannels, so that the first controller realizes access to the single-port SSDs through the double channels, and N is an integer greater than 1. 本申请实施例公开了一种访问装置，用于实现单端口SSD与全闪存阵列间的访问，并且保证访问过程中不丢失数据。本申请实施例提供的访问装置包括第一控制器、连接器、第二控制器、单端口固态硬盘SSD；连接器用于连接第一控制器和第二控制器；第二控制器用于控制N个单端口SSD的单通道合并成双通道，以使得第一控制器通过双通道实现对单端口SSD的访问，N为大于1的整数。