摘要
为了实现多媒体信息特别是音视频数据的在线访问和实时传输,对流媒体服务提出了更高的要求。其中,流媒体服务的存储系统所使用的存储方案起到了至关重要的作用。从流媒体服务的综合性能角度分析了DAS、NAS和SAN这3种常用存储方案的优点和缺陷,提出了基于流媒体服务的SAAS虚拟存储解决方案,并对其使用的技术、原理和优势进行了介绍。SAAS虚拟存储方案克服了上述3种方案的不足,具有一定的理论推广价值。
To achieve on-line visiting and timely transfers of multimedia information especially audio frequency and video frequency data, higher demand for streaming media service is put forward. Hereinto, the scheme which the storage system of streaming media service used has played an important function. Form the comprehensive capability of the streaming media service, the excellence and limitation of three kinds of storage scheme is analyzed, including DAS, NAS and SAN, then SAAS virtual storage scheme based on streaming media is brought forward and the technology, principium and predominance are introduced. SAAS virtual storage scheme conquers deficiencies of the above-mentioned three schemes, and has definite theoretic and extended value.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第4期872-875,878,共5页
Computer Engineering and Design
作者简介
宋立志(1980-),男,山东曲阜人,硕士研究生,研究方向为多媒体传输技术、流媒体:E-mail:yifanjiawei@163.com
张虹(1942-),女,江苏徐州人,教授,博士生导师,研究方向为图像处理技术、图像压缩算法、网络多媒体技术、数据仓库、数据挖掘、软件工程。