Data real time backup method and system based on file system

Abstract

The invention discloses a data real-time backup method based on file systems, and a system thereof. The method comprises the following steps: a main storage path and a backup storage path are determined in a storage system at least; association is established; association information is recorded; the main storage path and the backup storage path point to a main storage system with the file systems and a backup storage system respectively; and when an application program accesses the main storage path, the following steps are inserted: a write access request for storage file data, which is sent out by the application program to the main storage path, is intercepted, and the file data is simultaneously stored into the main storage system and the backup storage system according to the association information. The invention adopts a technical proposal of real-time backup, and has the advantages of reducing the operation load of equipment and improving backup efficiency and the work efficiency of data processing equipment, along with higher security.

Description

technical field [0001] The invention belongs to data backup technology and relates to real-time data backup, in particular to a file system-based data real-time backup method and system, capable of real-time backup of all data generated by application programs. Background technique [0002] In order to ensure the security of data storage, it is often necessary to back up the data. Data backup is a very important job, especially for some special industries, the security, reliability, and stability of data storage often exceed the functional requirements, and even the damaged data can be recovered in the shortest time , in order to realize the timely reading of data and ensure that the work performed by the computer system is not interrupted. For example, the storage device used for the video server of a TV station is required to ensure that the stored program data is safe and reliable, and even if the data is damaged, it can be restored immediately, especially during the bro...

AI Technical Summary

Problems solved by technology

[0006] However, RAID technology also has obvious deficiencies: first, it needs to add expensive hardware RAID and use the same hard disk, so that its controllability can basically meet the requirements of reading and writing, and additional costs need to be added; second, RAID storage has poor scalability, The hard disk bundled usage mode of RAID makes it very difficult to increase or decrease the hard disk capacity; third, if the hard disk in the hard disk array is damaged and the new disk is not replaced in time, the security of data storage cannot be guaranteed at this time; fourth, only use for multiple hard drives, not multiple servers

However, due to the existing data backup technology of this type, the use of non-real-time backup requires two independent processes of storage and backup. If the access to the main storage system fails during the storage process, or before the backup or when the backup is implemented, Not only will the data not be able to be backed up, but it will also not be able to be saved, leading to data loss and extremely low data security; and the use of two processes, the load on the device and the time required are more than twice that of a single storage process (including storage, reading and storage). , storage), which is more obvious for files with a large amount of data including video files; if the data scanning method is used to control the implementation of backup, a scanning process is also required, and the load on the equipment will also be increased. working hours

And none of these technologies are fault-tolerant

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