并行VOD系统中视频存储的可靠性研究  

Research of reliability for video store in parallel VOD system

作　　者：谢四莲[1] 

机构地区：[1]湖南人文科技学院物理与信息工程系,湖南娄底417000

出　　处：《计算机工程与设计》2006年第8期1335-1337,共3页Computer Engineering and Design

基　　金：国家863高技术研究发展计划基金项目(2001AA112072)

摘　　要：从并行VOD系统出发,通过分析比较当前流行的视频存储方案,提出了一种向前恢复算法。此算法考虑到了硬件失效,可保证系统在故障发生时能马上接近断点传输数据,提高了系统的可靠性。以并行VOD系统数据节点为背景,阐述了其实现过程。Current popular video storage plans for parallel VOD system are analyzed and compared. A replication algorithm with forward recovery is put forward. This algorithm considers the inefficiency of hardware and guarantee the system to approximate the break times of the video and take over data transmission, which makes the system more reliable. Based on date node of parallel VOD system, accomplishing process of this plan is expounded in detail.

关 键 词：并行VOD系统 视频存储 可靠性 向前恢复 复制技术 

分 类 号：TP393.2[自动化与计算机技术—计算机应用技术]