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随着网络带宽的日益增加,通信新业务不断推出,网络中流动的信息呈现出如下特征:一是流量越来越大(包括数据的吞吐量和通道数目);二是某些数据对时间要求苛刻,如语音、视频等,需要数据的随机存取,以保证服务质量或优先级;三是数据日益融合,如小型的文档、更多的图片和视频等形成更大的文件。数据流量的这些变化,要求现有的存储技术有所突破,以保证数据处理的高效性和灵活性。
With the increasing of network bandwidth, new business of communication continues to be introduced. The information flowing in the network presents the following characteristics: First, the traffic is more and more large (including the data throughput and the number of channels); Second, some data requirements on time Harsh, such as voice, video, etc., require random access to data to ensure quality of service or priority; Third, data is increasingly integrated, such as small documents, more pictures and videos to form larger files. These changes in data traffic require breakthroughs in existing storage technologies to ensure the efficiency and flexibility of data processing.