Data read-write system and data write-in method

The embodiment of the invention discloses a data read-write system and a data write-in method. The system comprises a control device, a write-in device, a sharing device, a shared storage and a log server. The control device is used for responding to a detected data write-in request, determining the write-in device and the sharing device associated with the data write-in request, and sending to-be-written data to the write-in device. The write-in device is used for writing the to-be-written data in the shared storage and uploading write-in information to the log server. The sharing device is used for acquiring the write-in information in the log server and synchronizing the to-be-written data according to the write-in information. The system provided by the embodiment of the invention adopts a calculation and storage separated structure, so that a plurality of data writing operations can be executed at the same time, data transmission between equipment is avoided, and the fault tolerance of the system is impr