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High-Reliability Distributed iSCSI Storage System Based on Double-Stage RAID

Author: LouFei
Tutor: YangJianJun
School: Zhejiang University
Course: Physical Electronics
Keywords: Markov process Symbolic Computation iSCSI System reliability Network Storage Performance Analysis
CLC: TP333
Type: Master's thesis
Year: 2012
Downloads: 26
Quote: 0
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Abstract


The global economy has entered a post-industrial revolution, that is, the age of the information revolution . Information data as an important carrier of this revolution , has become increasingly important significance . Businesses and individuals in the day-to-day economic life has generated a lot of information and data , these data need to be stored in the storage system which . With the explosive growth of the amount of data storage systems is increasing and the larger system , the multiple disks at the same time the possibility of damage , and the reliability of the system become increasingly important . 911 terrorist incidents in the United States , Japan tsunami were natural disasters, people more deeply aware of the devastating damage of the disaster data more attention to disaster recovery capability of the system . Storage system coded layout program are more concentrated in a single redundant or redundant storage , it is essential to meet the growing demand to study the multi- redundant network storage systems . This paper focuses on the reliability of the storage system , a new the iSCSI the two RAID distributed high- reliability storage system , this system has excellent reliability , but also avoid unrecoverable damage caused by an earthquake or other disaster data . This paper describes the the mainstream RAID technology advantages and disadvantages , mainstream NAS, SAN and IP-SAN technology , iSCSI IP-SAN technology . The main work is divided into the following two aspects: 1 . Proposed new storage structure of the system , two RAID iSCSI highly reliable distributed storage system , focusing on the establishment of a mathematical model based on the Markov process . Model complex , multi- state , according to the characteristics of the two RAID systems using Matlab symbolic calculation , calculated system reliability demonstrated two RAID systems with high data reliability , significantly better than the previous system . Using Linux experimental system structures using IOMeter test tools , test data read and write performance of two distributed high reliable storage RAID system , test the system concurrency , and by experimental analysis stripe unit , the child node bandwidth , the impact of of striped combinations of system performance , and finally elaborated two RAID systems applications . Compared with other systems , the system is both a good read and write performance , high reliability , and distributed three advantages offsite storage with high reliability and disaster recovery capability .

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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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