Research on data storage problem in cloud computing environment

Along with the rapid development of information communication and processing technology, since the advent of computer, computers have crossed the era of stand-alone systems, network systems, Web services and networks, and entered the era of cloud computing. The advent of cloud computing has brought about a revolutionary shift in business models and working methods, changed the traditional mode of data concentration in the local storage and processing in the past, enabling enterprise organizations and individuals to enjoy computing power, storage space and software easily and quickly through the network, greatly reducing the duplication purchase and idle of the hardware and other infrastructure , effectively avoiding the waste of human resources, saving a lot of money and manpower expenditure.

Definition of cloud computing

Cloud computing is a business computing model based on shared infrastructure, which is the development and commercial implementation of distributed computing, grid computing and parallel computing. In essence, cloud computing is a kind of distributed computing, which can effectively connect and integrate distributed computing and storage resources through network, and provide service for users. One of the basic conditions for implementing cloud computing services is high-performance cloud storage.

Ii. Overview of cloud storage

Cloud storage is a new topic developed with the concept of cloud computing, which connects dispersed storage devices through network and Distributed file system, integrates into an efficient, convenient and reliable system, and provides online data storage and business access services in a common way through some application software. Here is a brief introduction to some of the main issues of cloud storage.

(i) Distributed file systems. Distributed File system is the core of cloud storage. The Distributed file system can realize the collaborative work between different storage devices in cloud storage system, provide the same service externally, and provide better and faster data access performance. The characteristics of Distributed File System: (1) security (2) Reliability (3) practicality (4) can maintain and expand the upgrade (5) data replication and synchronization.

(ii) cloud storage technology. In order to ensure the security, reliability and practicability of data, cloud computing uses distributed storage and redundant storage to store data, which has the advantages of high data processing ability and fast transmission. At present, the more mature mainstream cloud computing data storage technology has Google's GFS and the Hadoop development team developed HDFS.

Third, the advantages of cloud storage

As a new storage mode, cloud storage has many irresistible advantages:

(i) Users of government agencies. Due to the particularity of government agencies, the requirements for data security and back-up are particularly stringent. The application of cloud storage avoids the serious consequence of data loss caused by force majeure or improper operation, and saves a lot of extra financial expenditure.

(b) for enterprise users. With the continuous development and deepening of enterprise information construction, modern enterprises pay more and more attention to the storage security of core data and the realization of information management Systematization office. The continuous maturation of cloud storage mode enables enterprises to establish a comprehensive platform, including database and various information management systems, to realize remote mobile office and realize management Information system through network. The development of Enterprise Informatization has promoted the effective circulation of information and the sharing of resources knowledge, greatly improved the efficiency of work and management, reduced the management cost, and provided the guarantee for the enterprise to adapt to the fierce market economy competition environment and obtain the maximum economic benefit.

(iii) for individual users. The advent of cloud storage mode provides an almost limitless amount of stable space for individual users to keep a growing number of personal data such as photos, video, audio, and electronic documents. Users can set up through the function, the data document browsing, synchronous modification, sharing and other operations, very convenient and convenient.

Four, the development of cloud storage should pay attention to the problem

At present, the cloud storage is not so perfect and mature, in the rapid development phase. Its perfection and maturity, not only by the technical level can be solved. The cloud storage wants to want the different type, the different demand group's common approval, obtains the wide scope widespread application, but also has many problems to be solved urgently.

(i) security. Data from different users, including a large number of confidential and personal privacy, are stored remotely to the same cloud storage provider, how to ensure the security and privacy of its data, to ensure that private data is not by the cloud storage provider internal or unauthorized users to browse and spread, is the main constraint on the development of cloud storage.

(ii) reliability. If cloud data is compromised, causing all or part of the data to be lost or damaged, the cloud storage provider can quickly and comprehensively recover data and ensure data integrity.

(iii) practicality and convenience. Through password verification or other effective forms, the cloud storage provider must ensure that any user uses any terminal, can enjoy the service of cloud storage at any time and place through the network, and make the operation simple and humanized.

(iv) Quality service. When a user signs a service agreement or contract with a cloud storage provider and stores the data in the cloud, the cloud storage provider must ensure a 7 * 24-hour uninterrupted quality service. Feedback to the user questions or comments, can be resolved and dealt with in a timely manner.

(v) Low cost. One of the big advantages of cloud storage is the cost advantage, so cloud storage providers should take effective measures to make technology innovations and improvements, reduce costs, and promote the widespread spread of cloud storage services, while ensuring security and reliability.

V. Concluding remarks

As an advanced technology at present, cloud storage occupies an overwhelming advantage, has irresistible attraction, represents the inevitable trend of future storage development. Our next focus will be from the technology, user needs, such as multi-level, multi-angle start, fully solve the practicality, reliability, security and other issues, to promote the cloud storage as soon as possible to mature and improve, so that its early access to widespread application.