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Research on Load Balancing Technology in Intelligent Network Storage System

Author: CaiHong
Tutor: ZhaoYueLong
School: South China University of Technology
Course: Computer System Architecture
Keywords: Intelligent network storage INSS Load balancing Dynamic Feedback
CLC: TP333
Type: Master's thesis
Year: 2011
Downloads: 38
Quote: 0
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Abstract


With the continuous development of computer technology and Internet technology, the early computer data processing has evolved into a \The data of information for long-term storage and management, people put forward higher requirements for capacity, speed, and security of data access from local storage to network storage, storage technology, network storage technology has become in recent years, as computer storage technology one of the hottest areas of research. Network storage technology, NAS (network attached storage) and SAN (storage attached network) are two typical storage technology, but the NAS file requests frequently, server performance will decline, prone to the single point of failure problem ; SAN can provide higher speed data block transfer, but generally require specialized optical switch device and the optical interface of the memory, it is a higher cost of network storage solutions. For mainstream network storage, our group proposed an intelligent network storage systems INSS (Intelligent Network Storage System) structure. INSS is actually a high-performance, high reliability and intelligent distributed network storage systems, including load balancing technology is an important part in the the INSS storage control software, it can be a lot of I / O requests allocated to the INSS in multiple nodes, so that the load of each node in a relatively balanced state, so load balancing is one of the key technologies for high performance and intelligent reflects the INSS. The INSS of I / O requests, if it is a read request, the user is read directly from the node that owns the file or the smallest load replica node; if it is a write request, will be concurrent storage of the data block after the segmentation in the load than the small multiple nodes, so the main contents of this paper is to study the data placement strategy of the the INSS system load balancing technology. This article did research and innovation of the following aspects: 1, gives an intelligent network storage system (Intelligent Network Storage System, INSS) structural model. Structural model based on the the INSS storage system and its I / O request process, a two dynamic feedback load balancing model, well positioned to meet the the INSS load balancing requirements. 3, for the the minimum load first algorithm and the advantages and disadvantages of randomized algorithms, proposed a minimum load-first algorithm and random algorithm to combine the two dynamic feedback (TLDF) algorithm, experiment results show TLDF algorithm than the RR algorithm The better performance of the algorithm improves the load balancing effect.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Electronic digital computer (not a continuous role in computer ) > Memory
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