Disaster recovery data backup method and system

Abstract

The present invention discloses a disaster tolerance data backup method and system, and belongs to the field of network management. The method includes: receiving a data file to be backed up, which is transmitted by a network management system (101); segmenting the data file to be backed up to obtain segmented data blocks (102); by utilizing a weak check value hash algorithm and a strong check value hash algorithm, calculating the data fingerprint value of the current data block and searching whether a target data block with the same data fingerprint value is in the data file which has been backed up (103); if yes, comparing the target data block with the current data block byte by byte (104); backing up the current data block according to the comparison result (105). The system includes a reception module, a segmentation module, a calculation and search module, a comparison module and a backup module. The technical solution of the present invention can improve the applicability of a data backup file, reduce the occupation of storage space and improve system performance.

Description

technical field [0001] The invention belongs to a network management system, and in particular relates to a method and a system for backing up remote disaster recovery data of a network management system based on data deletion. Background technique [0002] The network management system is a system for managing the network elements of the communication network. It configures the configuration data of the network elements of the entire network. These network element configuration data are very important. Without these configuration data, the network elements cannot operate normally. Based on the consideration of disaster recovery, the configuration data needs to be backed up in different places. Once the network management system is damaged by earthquakes, fires, etc., the configuration data backed up in different places can be recovered to ensure the normal operation of network element services. Generally speaking, off-site backup of configuration data is required to be bac...

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Problems solved by technology

[0005] This method has obvious defects: there are strict requirements on the files backed up by the network management system, and the network management system and the backup system must comply with the same file format regulations to realize data backup and subsequent recovery, which cannot be applied to all network management systems and has poor applicability; In addition, it is also required that the backup file is a text file, and the text file cannot be compressed, which takes up a lot of storage space, while the transmission of an uncompressed text file takes up network bandwidth, consumes a lot of system resources, and affects system performance

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