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Key technology analysis of file sharing in encrypted cloud storage Zhang Jidong Shoda as cloud computing concepts become popular, cloud storage is increasingly being mentioned. Cloud storage is widely supported and focused on its low-cost, scalable features, but it also poses new security concerns: In most cases, users do not fully trust the cloud storage service provider, which requires data encryption to ensure the confidentiality of the data. In the existing access control technology based on ciphertext, the data owner (owner) needs to maintain and release the data key for each user, so that in the case of a large number of users, Ow ...

Cost-optimized cloud storage caching Strategy Tang Bing Zhang to improve the access rate of cloud storage and reduce the cost, a cost-optimized cloud storage caching strategy is proposed. Build a distributed File system locally and use it as a cache of remote cloud storage, using more than one desktop computer in a nearly free LAN environment. When a file is read, it first finds whether it is in the cache, if it exists, reads it directly from the cache, or if it does not, from the remote cloud store. The least Recently Used (LRU) algorithm was used for cache substitution to replace the unpopular data from the cache. To Amazon Simple ...

Research on the integration of high resolution remote sensing storage and computing with dual-state cloud support Li Rongya of Zhejiang University The main contents of this paper are as follows: (1) A new dual-state cloud storage model for high resolution remote sensing is proposed R Cloud first of all, the development of cloud computing and its advantages of research, analysis of the mainstream cloud Platform technical framework; then, Taking the progress of memory hardware as the main line, this paper analyzes the evolution process of memory storage and computing technology. Finally, a dual-state cloud model combining cloud computing and memory cloud is proposed, which combines the stability of the hard disk cloud with the high efficiency of the memory cloud.

Design and implementation of private cloud storage System Ma Xiaoping the paper realizes the design idea and main point of the data storage unit. The implementation of the whole data storage subsystem is implemented in the LINUX environment using C + +; After the implementation of the system, users can upload, download and delete data through customer service, implement data storage by key value, according to rule-based Resource location strategy (multilayer mapping), locate different data storage units, and realize system by the expansion and migration of bucket.

Problem one: Unexpected hardware corruption-a variety of reasons for hardware corruption can cause service to stop, such as hard drives, motherboards, power supplies, network cards, and so on, although for these vulnerabilities, managers can find alternatives, such as the establishment of a fully redundant environment (power, network, disk array, etc.), But the cost is too high and the work is very complicated. Cloud storage solves this potential hardware corruption problem by replicating files and having different servers. The cloud stores the location where the files are stored, and when the hardware is corrupted, the system will automatically store the read and write instructions to another storage service ...

Research on the storage strategy of small text corpus on Hadoop platform normal Zheng Lijie in order to solve the contradiction between the distributed storage and retrieval speed of the small text corpus in the Hadoop platform storage, this paper proposes a new HSCs (Hadoop smalltexts Corpus Storage) Storage policy. The strategy first uses small text merging technology to add a layer of merge_client to the HDFS architecture, merging multiple small text files into a large text file with directory structure, effectively reducing ...

A multi-tenant cloud data storage cache management mechanism Shuliang Wang Jie with the popularity of cloud computing, software as a service (software as a Service,saas) is becoming an important manifestation of cloud computing. Caching of data nodes in the cloud is an important resource to improve the performance of data access for multi-tenant applications. The sharing and allocation of cached resources is the concern of the SaaS provider. For SaaS providers, how to efficiently allocate cached resources on data nodes among multiple tenants to satisfy tenant service leve ...

Research on a key technology of cloud storage architecture based on FPGA Yunnan University Chen Cheng The current common cloud storage services are: Amazon simple Storage Service (S3), Nutanix storage services, Sohu Enterprise network, Baidu Cloud disk, etc., These do not provide the cloud services required for a small Development board. This system is based on TCP/IP as the basic means of communication, and add a custom data communication protocol, through the integration of distributed storage scheduling idea, to achieve the cloud storage architecture on the FPGA. ...

An extensible high-resolution remote sensing image storage organization structure for cloud computing Shen Sheng Liu Jiezhangping cang Zhang Wu Yi Chen Xiaoping Traditional Remote sensing image processing method can not effectively deal with the current remote sensing image of the 3 "massive" problem, that is, a large number of daily output, a single pixel mass and observable objects of the category and data mass, The utilization of multi-source mass remote sensing data is extremely low. In order to solve the problem of high resolution remote sensing image storage, a high resolution remote sensing image storage organization structure which is suitable for cloud computing is proposed, and the construction method based on MapReduce framework is detailed ...

A cloud storage service client incremental synchronization algorithm Lu Yu Liu Mazhizuo dan with the rapid development of cloud computing technology, more and more users choose to use cloud storage service to save personal files. Cloud storage sharing and collaboration technology allows users to share cloud files, enabling other users to read and write files through clients on various intelligent terminals. Cloud storage sharing and collaboration technology brings the need for large-scale shared scenarios of file history versions, which is a great test for the concurrent I/O performance of the cloud storage system. For cloud storage services to share the characteristics of the scene, mining file history version ...

A secure network disk system in cloud storage environment Fu Yingxun Rosant Shujiwu with the rapid spread of cloud storage, More and more users are starting to use the network disk system to store data. However, the latest research results show that the existing network disk system has a common security vulnerabilities. In recent years, the network disk leakage of user data has confirmed the existence of these vulnerabilities. To this end, a secure network Disk system architecture under cloud storage environment is proposed, and the architecture is designed to realize the Corsbox System. Corsbox system uses a directory-tree based synchronization, while improving security ...

Research on QoS guarantee mechanism of multi-data center in cloud storage Xia Chunzhong of Jiangsu University This paper analyzes the problem of bandwidth utilization of network link between multiple data centers in cloud storage, and presents a QoS-oriented network traffic scheduling model for multiple data centers. The optimization goal of the model is to ensure the performance requirement of data transmission at different QoS levels, and to maximize the network link bandwidth resource utilization. In this paper, a network traffic scheduling algorithm based on two-layer multi particle swarm is proposed, combining with the hierarchical management of cloud storage data center. The algorithm has faster convergence speed and avoids the traditional algorithm ...

Research on the mechanism of middle-stage recovery of cloud storage log structure file system Hou Hao Zhao is far from the cloud storage file system, complex retrieval and recycling processes cause the system to process user data degradation, based on the log structure of Distributed file systems (hdfs-based log-structured file System,hlfs), this paper proposes a method to improve the effective utilization of cloud storage space by means of efficient recycle management of system resources, and find out the usage of hlfs middle resources through bitmap marking, and realize the hlfs ...

Research on data layout strategy in cloud storage System South China University of Technology Rongsaichen This paper focuses on the efficient storage of cloud storage system in the data layout. The research content of this paper includes four aspects: the static file data layout, the dynamic file data layout, the replica data layout and the data layout strategy in the low energy storage system. The purpose of this thesis is to optimize the performance of cloud storage system, reduce the average response time of cloud storage system and make it have high speed, high availability and reliability and low energy consumption characteristics. Research on data layout strategy in cloud storage system

Cloud storage Intelligent Automation Testing--automation + testing--intelligent--cloud storage--load test Case cloud storage Intelligent Automation test

A weak secure regeneration code for anti-eavesdropping attacks in cloud storage Liu Jiannang Sharp Huang and regeneration codes are effective mechanisms to ensure the reliability of cloud storage, but they do not provide the confidentiality of data stored in the case of a node being tapped. In this paper, two kinds of weak secure regeneration code schemes are designed, which combine all-or-nothing transform and accurate restoration of regeneration code to ensure that the attacker can not obtain any meaningful information about the original data symbol in the case of limited eavesdropping ability, and has smaller data repair bandwidth. This paper gives the general coding ...

Research on key technologies of mobile file storage and spatio-temporal data analysis in cloud environment the research work and innovation of the National Defense University of Science and Technology (Mao Hua) are as follows: (1) a seamless and unified access method for heterogeneous cloud storage services based on file system is proposed Wukong. At present, different cloud storage service access interfaces vary, because of the lack of seamless access to a variety of cloud storage Services Unified interface, spatio-temporal data applications can not modify the direct access and use of the back-end cloud storage data. File system is widely supported by the application of a data use interface to the file system interface to encapsulate various ...

Webmaster's Home (chinaz.com) August 19 compiled: The Global data volume of the explosion makes storage increasingly become a more independent professional issues, more and more enterprises began to store storage as a separate project management. At the same time, the continuous growth of data storage pressure led to the rapid development of the entire storage market. The concept of cloud storage has been put forward by many vendors and the support and attention, and Apple's icloud is to let cloud storage services into a comprehensive competitive state. At present, a wide range of cloud storage services are dazzling, recently have foreign websites through the characteristics, functions and prices ...

October 14 News, according to foreign media reports, EMC launched the use of large-scale parallel processing framework of the Integrated Data Warehouse system Greenplum the information Computing appliance. 　　 　　This customized integrated database, operation, storage, and network system shipped after EMC acquired Greenplum to enable the analysis of large data clouds. According to the company, this analytical capability is important for effective analysis of storage, management, fast retrieval, and space control of detailed data. These data ...

June 6, 2008, UIT (Innovation Division Storage Technology Co., Ltd.) as top sponsor, High-profile debut "2008 China Communications Industry Storage Summit", the UIT vice President Cui flocked published the "Application Webdisk to build cloud storage" speech report, attracted the attention of many operators, and gained the general recognition of the industry colleagues. Uit Advanced Solution Advisor Feng Kai published a technical speech report on "Video Surveillance system Storage Design" and did a "new storage New Vision" storage training on the next day's storage forum. ...