基于网络存储技术的高清播出二级存储系统

发布时间：2018-01-29 15:13

本文关键词： 无带化网络存储技术网络附加存储存储区域网 SAN与NAS融合　出处：《哈尔滨工业大学》2013年硕士论文　论文类型：学位论文

【摘要】：随着电视台业务的不断发展以及数字电视高清化、网络化的发展，电视台的节目数据量与日俱增，所有的电视台都在从传统的磁带化存储向无带化发展。黑龙江电视台为了适应发展的需要，也由于现有标清播出系统建设运行时间已达7年，设备老化，系统结构和播出手段远远落后于目前的技术发展。因此，我们对现有的播出系统做了一个基于全台网的建设和改造工作，，而做为后台备播缓存库的二级存储系统是此高清播出系统中的重要组成部分，是实现无带化播出的基础，对此也进行了全新的设计与搭建，以满足海量视音频数据的增加并实现电视台播出系统与制作系统、媒资系统间的视音频共享。本文应用网络存储技术对黑龙江电视台高清播出系统的二级存储系统进行设计与建设。通过对直接连接存储DAS、网络附加存储NAS、存储区域网SAN以及SAN与NAS融合等网络存储技术的优缺点的比较，进一步分析确定适合黑龙江电视台二级存储系统的相关技术，以使二级存储系统的构建合理，系统性能可靠、高效。论文首先分析了黑龙江电视台高清播出二级存储系统的需求，并对要构建的二级存储系统的相关产品进行了调研，从而开始对二级存储系统的设计。先通过计算得到了二级存储系统的存储容量和带宽并确定所选二级存储系统产品，重点探讨了二级存储系统的网络架构和网络拓扑，确定该系统的主备存储系统应用策略、分区访问策略、存储管理策略以及通过二级存储系统进行备播时的迁移策略，通过以上策略的制定，最终完成从节目生产系统、媒资系统和广告系统到二级存储系统的备播流程。目前黑龙江电视台高清播出二级存储系统已经投入运行2年。此系统在实现无带化存储上起着重要作用，系统运行2年性能安全、稳定、可靠、易于管理和维护，达到了设计目标，对其他电视台有着重要的借鉴意义。
[Abstract]:With the continuous development of television business and high-definition digital TV, the development of the network, the program data of television and television all grow with each passing day, with the development from traditional tape storage. Heilongjiang TV station without the need to adapt to the development, but also by the existing SDTV broadcast system operating time for over 7 years, aging equipment, system structure and broadcast means far behind the current technological development. Therefore, we made the existing broadcasting system based on a whole network of the construction and renovation work, the two level storage system as the background. The buffer library is an important part of the HD broadcast system. No, is the basis of the broadcast, which was also carried out and set up a new design, in order to meet the increasing mass of video and audio data and broadcast system and production system of television media information system. Video and audio sharing.
The two level storage system using HD network storage technology in Heilongjiang TV broadcast system design and construction. Based on the direct attached storage DAS network attached storage NAS, comparing the advantages and disadvantages of the storage area network SAN and SAN and NAS fusion network storage technology, further analysis to determine the related technology for Heilongjiang TV two the storage system, so that the construction of two level storage system is reasonable, reliable, and efficient.
This paper first analyzes the Heilongjiang TV broadcast HD two level storage system, and related products on the two level storage system to be constructed for the research, thus begin the design of two level storage system. First obtained by calculating the storage capacity and bandwidth of two level storage system and determine the selected product two level storage the system, focusing on the two level storage system network architecture and network topology, determine the strategy by the main storage system using the system partition, access strategy, storage management strategy and through the two level storage system. The migration strategy, through the development of the above strategies, the final completion of the program from the production system, media information system and the advertising system to the two level storage system backup process.
At present, Heilongjiang TV broadcast HD two level storage system has been put into operation for 2 years. This system realizes non tape storage system plays an important role in 2 years of operation performance and safety, stable, reliable, easy maintenance and management, to achieve the design objectives, have important reference significance to other TV stations.

【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP333

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