Method for batch and rapid establishment of metadata and data of file system

The invention discloses a method for batch and rapid establishment of metadata and data of a file system. According to the method for batch and rapid establishment of the metadata and data of the file system, specifically aiming at a pre-known working set such as catalog copying and decompressing of compressed files, three kinds of metadata, including super blocks, block group descriptors, a data bitmap and an Inode bitmap, in a metadata area are modified firstly on the premise that the reliability of the system file is guaranteed; then, Inode information and data are written into the metadata area and a data area respectively according to the operating sequence. According to the method for batch and rapid establishment of the metadata and data of the file system, frequent random lower cases introduced onto a metadata page during back writing are avoided for the file system; writing delay time is prolonged, a part of IO requests are absorbed and combined by the metadata and the data area to a greater extent, and repeated updating for issuing the same metadata object to a disk is replaced with one-time disk updating; in the metadata and the data area, sequential establishment of Inodes and data blocks is achieved, and head track seeking frequency and positioning frequency are reduced.