Data real-time storage system and method based on Linux

Abstract

The invention discloses a data real-time storage system based on Linux. The data real-time storage system comprises a host, and a processing module, a memory and at least one storage device which arearranged in the host; the memory is used for storing data to be written into storage equipment, an index table I and an index table II; an actual volume and a backup file for storing real-time data are arranged in the storage equipment; and the processing module selects data writing and reading positions according to the data written or read in the memory in combination with the index table I andthe index table II, and updates the index table I and the index table II. The invention discloses a storage method based on the Linux-based data real-time storage system. The snapshot state and the increment state in the storage system work alternately. According to the invention, the I / O operation is greatly reduced, and the system performance is improved; meanwhile, normal operation of the system is not affected in the data copying process of the user, and backup file mounting points are not limited.

Description

technical field [0001] The invention belongs to the field of computers, in particular to a Linux-based real-time data storage system and method. Background technique [0002] With the rapid development of the Internet, data is the top priority. In the actual process, improper operations, hardware failures, malicious attacks, etc. will cause data loss or damage, especially important data, which will cause catastrophic damage. Loss, data backup becomes extremely important. [0003] There are many kinds of traditional backups, and the defects of the current backup-on-write technology are obvious. The online backup of the production system cannot be operated in real time and affects business use. The backup file takes up additional physical disk space. The original data copy method requires three I / O disk write operations to achieve backup. Traditional backup requires device volumes to be read-only but not writable. Data input, incremental backup process is slow, and full back...

AI Technical Summary

Problems solved by technology

The online backup of the production system cannot be operated in real time and affects business use. The backup file takes up additional physical disk space. The original data copy method requires three I / O disk write operations to achieve backup. Traditional backup requires device volumes to be read-only but not writable. Data input, incremental backup process is slow, and full backup is required after incremental backup fails

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