Concurrent data synchronization method and device across parallel file systems

The invention discloses a concurrent data synchronization method and device of a cross-parallel file system. The method comprises the steps that file names of all files needing to be synchronized in a source file system and data storage absolute paths of the files are recorded; null files of all files needing to be synchronized are created in the target file system, and data storage absolute paths of the files are recorded; establishing a mapping relationship between storage nodes according to respective data storage absolute paths of the same file in the source file system and the target file system; and under the condition that participation of mounting points and clients is not needed, data transmission of files is directly and concurrently carried out among all the storage nodes which establish the mapping relation, and finally file synchronization between the source file system and the target file system is completed. The invention aims to accelerate the data synchronization between the parallel file sys