Distributed backup method and system for block storage video

Abstract

The present invention provides a distributed backup system for block storage video, the system includes a backup management server BM, a first IPSAN device and a second IPSAN device, the first IPSAN device stores the video to be backed up, and the second IPSAN device is used for Backup video recording, when performing video data backup service, the BM server sends backup service signaling to the first IPSAN device and the second IPSAN device; the first IPSAN device reads out the corresponding video recording data according to the backup service signaling, and Send to the second IPSAN device; the second IPSAN device receives the video data and backs it up in its own storage space. The backup scheme of the present invention is optimized from a centralized architecture that is all processed by the backup management server to a fully distributed architecture where the BM server performs backup service signaling processing, and the IPSAN equipment where the video recording is located and the backup IPSAN equipment process media data, which reduces the burden on the backup management server. pressure.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a distributed backup method and system for block storage video recording. Background technique [0002] With the application of high-definition in surveillance business systems, the requirements for the reliability and performance of surveillance video storage are getting higher and higher. The end-to-end media stream iSCSI direct storage technology from the front-end IP encoder device to the IPSAN is a better video storage solution. In terms of storage, the data management method of "direct storage of media stream blocks" has abandoned the media server. On the basis of the IP network, the encoding device integrates an iSCSI module, so that the encoding device can write video data into the IPSAN storage device end-to-end based on the iSCSI protocol. Please refer to figure 1 . [0003] When the image of the monitoring point needs to be stored centrally, the front-end IP encode...

AI Technical Summary

Problems solved by technology

[0012] 2. The storage space for saving backup videos is not fixed and cannot be specified in advance, only a public storage space can be specified, which can save backup videos of many cameras

Therefore, when the video data is read from the storage resource to the backup module through the iSCSI protocol, and written from the backup module to the backup resource through the iSCSI protocol, two data copies need to be performed between the kernel state and the user state of the BM server. Greatly affects backup performance

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