基于光盘库的云存储系统研究与实现

发布时间：2018-05-29 01:23

本文选题：云存储 + 纠删码　；参考：《南京航空航天大学》2013年硕士论文

【摘要】：云计算开启了新的IT革新，开创了新的工作模式，正在被越来越多的企业应用。数据量日益激增的今天，用户对存储数据的硬件产品采购也越来越多，这就导致很多硬件资源的浪费。云存储作为云计算衍生的新服务，有着低成本、避免资源浪费、高效、可扩展性、可以随时随地存取数据等优势而受到很多用户的青睐，但是由于数据是通过网络传输存储在各个存储节点，并不能保证在传输中的安全性，所以如何安全的保存数据是现在各大公司以及科研机构研究的热点。本文首先介绍数据存储的发展历程，重点介绍了云存储的相关概念和技术，分析了云存储在应用中的安全问题，并给出了目前解决该问题的一些关键技术和安全方案。对于数据在网络传输中的安全性采用数据分散法，将用户的数据分散存储在各个存储节点上,并研究了目前的几种数据分散法，通过对比将低密度纠删码（LDPC）技术引入到云存储系统中，并通过程序实验对LDPC码在数据分离、数据恢复及数据安全方面的性能进行了分析，保障了数据传输过程中安全性的同时更是提高了数据在编码过程中的效率。在此基础上，设计了云存储系统的安全架构，，包括访问层、应用接口层、基础管理层和存储层。访问层是云存储的窗口，通过设计友好的界面使得用户能够方便地使用云存储服务；应用接口层根据用户的需求开发出不同的接口，包括文件服务接口、连接接口、存储设备管理接口以及数据库接口；基础管理层是云存储系统设计的核心部分，对文件的管理以及保障文件在传输过程的安全性都在此层设计；存储层是根据存储设备的选择设计相应的设备管理流程。最后利用现有的资源实现了具有以上安全架构的云存储系统平台，通过测试验证了系统功能的可行性和数据在存储过程中的安全性。
[Abstract]:Cloud computing has opened up new IT innovations and new work models, and is being applied by more and more enterprises. With the increasing increase of data volume, users purchase more and more hardware products to store data, which leads to the waste of many hardware resources. Cloud storage, as a new service derived from cloud computing, has the advantages of low cost, avoiding waste of resources, high efficiency, expansibility, being able to access data anytime, anywhere and so on. However, because the data is transmitted through the network and stored in each storage node, it can not guarantee the security in the transmission, so how to save the data safely is now the research hotspot of the major companies and scientific research institutions. In this paper, the development of data storage is introduced, the related concepts and technologies of cloud storage are introduced, the security problems of cloud storage in application are analyzed, and some key technologies and security schemes to solve this problem are given. For the security of data transmission in the network, the data dispersion method is adopted, and the user data is distributed and stored on each storage node, and several current data dispersion methods are studied. By comparing the low density erasure code (LDPC) technology into cloud storage system, the performance of LDPC code in data separation, data recovery and data security is analyzed through program experiments. It not only ensures the security of data transmission, but also improves the efficiency of data coding. On this basis, the security architecture of cloud storage system is designed, including access layer, application interface layer, basic management layer and storage layer. The access layer is a window for cloud storage, and the user can easily use cloud storage service by designing friendly interface, and the application interface layer develops different interfaces according to the user's needs, including file service interface and connection interface. The basic management layer is the core part of the cloud storage system design, and the management of the files and the security of the files in the transmission process are all designed in this layer. The storage layer is to design the corresponding device management flow according to the choice of storage device. Finally, the cloud storage system platform with the above security architecture is implemented by using the existing resources. The feasibility of the system function and the security of the data in the stored procedure are verified by testing.
【学位授予单位】：南京航空航天大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP333

【参考文献】