Research on self-adaptive distributed storage system

被引：0

作者：

Han, Dezhi ^{[1
]}

Feng, Fu ^{[2
]}

机构：

[1] Sun Yat Sen Zhongshan Univ, Guangdong Univ Foreign studies, Guangzhou 510275, Guangdong, Peoples R China

[2] Huanghuai Univ, Dept Comp Sci, Zhumadian 463000, Peoples R China

来源：

2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31 | 2008年

基金：

国家高技术研究发展计划(863计划); 美国国家科学基金会;

关键词：

QoS; Distributed storage system; Multi Protocol File System;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Ensuring performance is a long term goal in network storage systems. Existing management tools require detailed knowledge of the system characteristics and the access patterns to modulate a suitable resource schedule, but the knowledge is hard for system administrator to get. This paper brings out a self-adaptive distributed storage network (SDSS). By using an online QoS monitor controller, the SDSS can adaptively allocate storage bandwidth to application classes so as to meet their response time requirements. Firstly, in the SDSS, spare bandwidth from underloaded classes should be reallocated to classes that are heavily loaded; Secondly, when aggregate workload exceeds SDSS capacity, causing the target response times of all classes to be exceeded, SDSS allocates a wider bandwidth for applications that has higher priority; Thirdly, the SDSS could online automatically change the data distributions when the storage system is heavy loading or overloading, therefore it can reduce the I/O burden of hot spots, and guarantee QoS of storage systems. Our experiments demonstrate the improvement of the storage systems by using SDSS

引用

页码：5049 / +

页数：3

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