Method for updating file system and storage device

Abstract

The embodiment of the invention provides a method for updating a file system and a storage device. The write-in efficiency of the storage device can be improved, meanwhile, the probability of data corruption caused by large-amplitude swinging of a magnetic head is reduced, and the reliability of data is improved. The method comprises the steps of receiving a file updating request sent by a client terminal, determining a physical address of the data to be updated in a magnetic disk according to a logic address, then, updating a file according to the data to be updated and the determined physical address, obtaining the transaction serial number to be updated and position information of the updated file in the file system which the file belongs to according to the updated file, and finally updating a first super block of the file system according to the transaction serial number to be updated and the position information of the updated file. The method is used for updating the file system in the storage device.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a method for updating a file system and a storage device. Background technique [0002] Currently, the super block (super block) is the content at the beginning of the data stored on the disk. It contains file volume control information, as well as the disk’s sub-volume resource table and file sub-volume information. It is specifically used to store file system attributes and General information such as configuration information and real-time status information of the file system is usually located in a fixed location on the disk or partition. In order to improve the security of the super block, the super block is usually redundantly backed up in the disk or partition, that is, multiple super blocks are stored at the same time. After the data in the disk is updated, correspondingly, the superblock for saving the file system in the disk also needs to be updated. When the super ...

AI Technical Summary

Problems solved by technology

[0003] However, in the current storage structure, the super block is often stored at the head and tail of the disk or partition, so when operating the super block, the magnetic head needs to move a lot in a short time, which will make the storage device as a whole The write efficiency is greatly reduced, and at the same time, it is more prone to failure and data corruption.

Images