摘要
基于对象文件系统是建立在对象存储系统上的一种应用,它利用对象的特点对数据进行存储和管理.基于对象文件系统由客户端、元数据服务器和基于对象存储设备组成,通过对系统的各部分进行分析,设计并实现了基于对象文件系统.通过对不同文件大小、不同文件分块大小条件下文件系统的性能进行测试分析,找出系统的数据传输瓶颈,使用以对象属性为导向的缓存和预取技术以及聚合读写的方法对文件系统进行了优化.优化后读写吞吐率分别提高了60 Mbyte/s和40 Mbyte/s.
On the basis of object-based storage system （OBSS）, object-based file system （OBFS）, consisting of client sides, Metadata Server and object-based storage device store and manage data by using the characteristics of objects. This system was designed and realized by analyzing the compositions and interaction modes of each part in the system. The data transfer bottleneck in the system was determined after testing and analyzing the performance of the system under the different file sizes and file stripping sizes. Through cache, prefetch and aggregated Read/Write technology which is based on object attributes, the performance of OBFS is improved. The read and write throughput is increased by （50 Mbyte/s and 40 Mbyte/s respectively.
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第12期47-49,共3页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家重点基础研究发展规划资助项目(2004CB318201)
关键词
对象存储
基于对象文件系统
预取与缓存
聚合读写
object-based storage
object-based file system
prefetch and buffer
aggregated read/write
