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

Abstract

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.

Description

technical field [0001] The invention belongs to the technical field of computer storage systems, and more specifically relates to a method for rapidly creating file system metadata and data in batches. Background technique [0002] The file system is the core component of the storage system and is mainly responsible for organizing files and data on the storage device. The file system consists of three parts: the interface of the file system, the operation and management software collection of objects (objects and attributes). [0003] In the past few decades, file system research has mainly focused on improving file system performance, including optimizing the disk layout of the file system to fully utilize disk bandwidth and reduce disk seeks, and reducing IO operations on disk by improving memory efficiency. However, with the increase of system complexity and the growth of stored data volume, balancing the reliability and performance of file systems has gradually become a...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the above defects or improvement needs of the prior art, the present invention provides a method and system for quickly creating file system metadata and data in batches, the purpose of which is to solve the problem of copying and migrating a large number of file data in existing ext series file systems. The technical problem of the serial creation method of metadata and data that tends to limit the processing speed of the file system

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