Research On File Management Systems That Support Recoverability Verification

With the rapid development of industrial technology especially the information technology such as computer technology,electronic file information is increasing,traditional manual data file management ways have already cannot satisfy the demands of present data's rapid development,file information management gradually become a problem cannot be ignored.In order to facilitate information management,more and more enterprises make computer aided management as an important means of file management.In recent years,China's big data industry further development continuously,cloud storage as a low-cost way to store is more and more popular among small and medium-sized enterprises even large enterprises.Like to the traditional way of storage management,cloud storage management can implement automatic and intelligent,through virtualization technology to solve the waste storage space at the same time,improve the utilization rate of storage space and have a combination of load balancing,fault redundancy function.Cloud storage can achieve scale effect and elastic extension to reduce operating costs and avoid the waste of resources.In order to ensure the security of data in the process of cloud storage,the research in view of cloud data's integrity and recoverability test is more and more.However,the data security problem of cloud storage user is also a problem that can't be allowed to ignore,cloud storage providers due to factors such as internal attack,sudden disaster,or out of self-interest consideration to delete the data that the user does not use for a long time,which will cause part of the damage or loss of the data.According to the current research situation of document management system and combined with cloud storage environment's research on data recoverability.This Master's Thesis will bring the proved recoverability of cloud storage technology into the file management system to solve the problem in the process of the file management due to internal attack or sudden disaster factors such as archives lost or damaged.In this Master's Thesis,the steps of my study are as follows:First,from the perspective of the demand to make detailed analysis which problems are proposed to solve in the development process of file management system,combined with the archives information system model,from the aspects of network topology and the overall architecture describe the overall design of the system,finally,file management systems that support the recoverability test's two main function modules are analyzed.Second,design and implement recoverability validation of the data.On the basis of the basic PoR,introducing the raptor code redundancy code to ensure the recoverability of the data.Third,Through the experiment to analysis the recoverable proved plans that the Master's Thesis designed.Fourth,implement and support the recoverability validation of file management systems.Data recoverability proved to be a kind of important issues in the cloud storage security.This system on the basis of basic PoR,introducing the raptor code,basically implement the support for cloud storage data recoverability test plan of data recovery.For later based on cloud storage environment supporting recoverable validation file management system provides a solution.