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Based on the study of the key technologies in the embedded Linux mass storage system

Author: DongBo
Tutor: LiaoJianMing
School: University of Electronic Science and Technology
Course: Applied Computer Technology
Keywords: Mass Storage Storage virtualization Redundant disk array
CLC: TP333
Type: Master's thesis
Year: 2008
Downloads: 193
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Abstract


With the development of Internet technology, and society to further improve the level of information technology, more and more mass-oriented data management of large applications (such as streaming media, large central platform, etc.) are emerging. The traditional DAS architecture of storage systems has been far from being able to meet the demand, network storage technology based NAS, SAN architecture, storage system to solve the problem of scalability of traditional storage systems and data transfer speed to some extent, changed the server-centric storage architecture, but the file server is the bottleneck of the entire storage system performance improvements. The distributed storage can improve the performance of the storage system, especially in the aspect of the scalability of the system, but the management and maintenance of a distributed storage system cost is high. Distributed storage systems combine traditional centralized storage system, direct access to the network of storage nodes in the system to achieve direct data interaction with the user, unified management by the file server will be able to fully integrate the advantages of both, in order to achieve a kinds the files centrally manage mass storage system for the distribution of data storage. This mass storage system to achieve a separation of the commands and data, eliminating the server bottleneck. Meanwhile, you can configure the network channel storage nodes in the system to reflect the thinking of the mass storage system expansion. Competitive of the major companies in the storage market, mass storage systems to face the inevitable increase of heterogeneous nodes, the management of the storage nodes will be more complex. Storage virtualization technology based on the virtualization of storage devices, storage systems in a variety of heterogeneous storage resources are unified into a single logical view of various heterogeneous resources for the effective use of the system, an important role to achieve high-performance data transfer . Characteristics different from traditional storage systems, the use of dual-channel disk array, a flood of user requests, HW-MSS is a lot of room for improvement in time and space parallelism. The use of redundant disk array and system scalability parallelism enhance system space. User disk array data interaction parallel pipeline scheduling mechanism, parallelism to achieve the improvement of the overall performance of the system in time. Distributed storage, centralized management, mass storage systems, storage shield hardware difference virtualization technology and space-time parallel pipeline technology to improve the overall performance of the mass storage system affect the larger of the two key points, the thesis is to study how effective to achieve these two key technologies.

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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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