Hot backup method based on TFTP (trivial file transfer protocol)

Abstract

A hot backup method based on the TFTP comprises the steps as follows: one backup device is used for backuping more than one main device, and a backup process is completed on the basis of the TFTP; the main device writes to-be-backuped data into a file, then the file is transferred to the backup device, and the backup device stores received data in a temporary file; whether transmission is successful and whether the verification file is received correctly are judged; and if the transmission is successful and the file is received correctly, the original backup file is replaced with the temporary file, otherwise, error information is sent to the main device. According to the method, data backup is completed by using files; and the backup device can be guaranteed to upload effective backup data at any time, influences of backup on normal operation are reduced, the high efficiency and the reliability of the backup are effectively improved, and the purpose of un-interruption of device service is achieved.

Description

technical field [0001] The invention relates to a hot backup method for equipment, in particular to a hot backup method based on tftp (simple file transfer protocol), which is applied to hot backup between devices and uses tftp (trivial file transfer protocol) to complete the file transfer to realize hot backup between devices. Background technique [0002] With the rapid development of Internet technology, many things have begun to be done through the Internet. The requirements for the reliability and stability of the Internet are getting higher and higher. Even a short-term network interruption may cause serious losses to operators and users, so hot backup is becoming more and more important. Hot backup can effectively reduce the interruption of network services, and can also ensure the integrity and reliability of important data. [0003] There are mainly two ways to transfer hot backup data backup. [0004] 1. Use messages to back up data [0005] The backup data on...

AI Technical Summary

Problems solved by technology

[0005] The backup data on the master device will be sent to the backup device in the form of messages. The advantage of this method is that it has high real-time performance and can ensure real-time synchronization of data on the master device and the backup device. However, this method also has some disadvantages. First, backup Messages are easy to lose, and the management of backup messages is also troublesome

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