File backup recovery method based on sector recombination

Abstract

The invention discloses a method for file backup recovery based on sector recombination, and aims to achieve the purpose that on the premise that the file data recovery result is correct, the file data recovery is accelerated, and the real-time and accuracy requirements of the recovery are satisfied. The technical scheme of the invention is as follows: obtaining and filtering to get the write operation information conducted by a procedure to all files in a disc; conducting splice type initiative backup according to the file data corresponding to the information; opening space NBS in a local disc to store the backup data in the file original state and the subsequent backup slicing data; and conducting operation level recovery to the served file data when the information system service crashes or is damaged, specifically, selecting all backup slices used for recovering the file and recovering the file through adopting the method of slice data sector recombination. The invention does not need the operation of data copy or move, can greatly increase the speed of data recovery, and has the advantages of both incremental backup mode and log backup mode.

Description

technical field [0001] The invention relates to a method for file backup and recovery, in particular to improve the fast and reliable backup and recovery method for file data under the background of information system service recovery. Background technique [0002] With the rapid development of computer networks, human beings have entered the "information age". Facing such a network environment with frequent intrusions and attacks, it has become an urgent problem in the field of information security to ensure that the information system can still work normally when it is attacked or the system is abnormal. Since the stability of the information system is the key to the operation of the entire computer network, and the reliability requirements are high, it should have a strong ability to restore emergency response services to ensure the strong survivability of the information system, so that it can still survive a certain degree of damage. Maintain the normal operation of th...

AI Technical Summary

Problems solved by technology

During file data recovery, even a small recovery failure can lead to serious consequences

[0005] 2. Real-time performance; because the operation of information system services often has very high real-time requirements, many application services are running in fields with high real-time requirements such as military affairs and finance. Therefore, the file data for the recovery process of information system services Recovery methods must have high real-time capabilities

[0010] Although this data recovery method can achieve complete recovery of file data, if it is applied to the field of service recovery, there are still fatal shortcomings: the data copy method is based on all data in the file. Although this method The data can be completely restored without omission, but in many application areas of service restoration, it is likely that only a small part of the file data needs to be restored

At the same time, it is not difficult to see from the above two main file data recovery methods that due to their inherent defects, there are still some difficulties and deficiencies in applying them in the field of service recovery

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