基于视频业务的RAID 5重建方式的优化设计

摘要

In this paper,commoned on characteristics in video surveillance,such as surveillance for a long time,uninterrupted,relatively few video read,randomness.Then based on LINUX software RAID MD module, proposed an efficient video services online reconstruction methods:the hot video read data and write data to rebuild the video sequence in RAID5 storage migration to the proxy server,RAID 5 rebuild until the end of the migration of video to write data to RAID 5.Theexperimental results show that the method improves the efficiency of the reconstruction online video services,which also improves the security of the data. In particular,the video surveillance industry has broad prospects for the use of video surveillance in a single RAID 5 ones less than 24 road cases,multiple ones for video surveillance also has some significance.%本文结合通用的视频监控业务监控时间长、不间断、读取的录像相对少、随机性大的特点，在LINUX 软RAID MD 模块的基础上，提出了一种优化视频业务在线重建效率的方法：在RAID5重建时将热点视频读数据和视频写数据顺序的迁移到代理存储服务器上，待RAID 5重建结束时，将视频写数据迁移到RAID 5中，使RAID 5恢复正常。实验结果表明，该方法大大提高了视频业务在线重建效率也提高了数据的安全性。在视频监控行业特别是在单个RAID 5视频监控路数少于24路的情况有广阔的运用前景，对于多路数视频监控也有一定的参考价值。