A method for online concurrent backup and recovery supporting multi-level data and databases

Abstract

The invention discloses an online concurrent backup and recovery method supporting multi-level data and databases. The following steps are performed to restore backup data: start all backup proxy servers and backup data servers, and register to the main control server; through the management console, select Backup task category, the backup task category includes directory backup or user full backup; the master control server issues a backup data task request message or a database backup task request message to the backup data server and backup proxy server; (3) the backup data server receives and starts uploading Or download the data command, create a backup file storage directory according to the task number, then start the file transfer service, accept the backup proxy server file upload or download connection; after receiving the upload or download file data transmission, send a task completion message to the main control server. The invention supports massive data storage and backup requirements, and supports online backup data and recovery.

Description

technical field [0001] The invention belongs to the field of computer data storage, in particular to an online concurrent backup and recovery method supporting multi-level data and databases. Background technique [0002] At present, people are more and more dependent on data, the carrier of information, and the research on key technologies for backing up data is getting deeper and deeper. At the same time, with the rise of computer network data storage technologies such as cloud storage, reliable backup data methods are particularly important. [0003] Commonly used backup and recovery mechanisms have the following problems: [0004] (1) The hot backup method cannot solve the problem of data loss caused by accidental deletion by the operator, because the hot backup system will regularly synchronize the data of the two machines to ensure data consistency. Once data is deleted by mistake, it cannot be recovered. [0005] (2) The reliability of the backup medium tape is poo...

AI Technical Summary

Problems solved by technology

[0004] (1) The hot backup method cannot solve the problem of data loss caused by accidental deletion by the operator, because the hot backup system will regularly synchronize the data of the two machines to ensure data consistency

Once the data is deleted by mistake, it cannot be recovered

[0005] (2) The reliability of the backup media tape is poor, it is difficult to save, and it is easy to fail

The access speed of the tape drive used is too slow, and it takes too long to back up data once

[0006] (3) The data storage and backup method is close to manual, which is difficult to meet the needs of efficient online backup of data

[0007] (4) The backup and recovery of the host operating system and application system are done manually. The serious consequence of this situation is that once the operating system or application system fails to run normally due to a hard disk failure, it will take a long time to restore

Functions such as dual-machine hot backup, disk array, disk mirroring, and automatic replication of database software cannot be called a complete data storage backup system. They only solve the problem of system availability, and the reliability of the computer system requires complete backup data. management system to solve

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