The application of private cloud can centralize the computing resources of the enterprise, realize the automatic management of software, and extricate the enterprise from the dilemma of IT operation. Therefore, it is of great value and significance to think about the IT operation dilemma of large enterprises and the application strategy of private cloud construction.

1 Cloud Computing

Cloud computing is a concept proposed in the field of information technology in recent years. It is a network application model proposed by Google. In application, multiple low-cost computing entities are integrated through the network to form a powerful and perfect computing power system. At the same time, it is combined with corresponding advanced business models, such as PaaS, MSP, SaaS, IaaS, etc. This computing power is distributed to the user terminal system, so from this point of view, cloud computing is a kind of distributed computing. Under normal circumstances, "cloud" can be understood as the Internet. Former network engineers like to draw that piece of the Internet with lines of clouds. Cloud computing is to simplify the complexity and do things that they cannot and are inconvenient to do. For example, an enterprise has to deal with a large-scale operation, but computer garbage does not know how to deal with it, while cloud computing uses its distributed computing, through the network of computers in various parts of the world together, for enterprises and users to solve problems, not only convenient, but also faster. Therefore, it can be said that cloud computing is the future trend, but also to achieve resource conservation.

The famous Professor Liu Peng once gave two definitions of cloud computing, of which the long definition of cloud computing is: "Cloud computing is a commercial computing model. It distributes computing tasks over a pool of resources made up of a large number of computers, enabling various applications to access computing power, storage space and information services as needed." The so-called short definition is: "Cloud computing is a cheap computing service that provides dynamic scalability on demand through the network." Here, the cloud is a metaphor for the network and the Internet. Enterprises use cloud computing as the technical foundation and use terminal bundled services to provide customers with instant, efficient, stable and secure mobile office enterprise-level solutions. To put it simply, a server has limited capacity, so many servers with different division of labor are required to complete huge operations together. In the process of application, many servers are combined to deal with problems to form an interwoven network. Finally, the final result is obtained after the processing results are summarized.

2 Problems and Causes of IT Operations in Large Enterprises

After a lot of investigation and research, it is found that the problems encountered in the development and operation of IT in Chinese enterprises are mainly manifested in the following aspects:

Insufficient investment in 2.1 software

From the internal point of view, in the development of enterprises, complex and huge infrastructure is needed, and the investment and related maintenance of these facilities require higher investment, which causes greater cost pressure on enterprises. At the same time, enterprises must have a relatively stable core system to support the construction of peripheral systems in the process of operation. However, in order to develop business and broaden the market, enterprises put more energy on the construction of characteristic systems. In addition, the personalized design of each business system function makes each system have great independence, and each system is equipped with independent development and testing environment and production and operation environment, such as Web servers, interface servers, application servers, database servers, etc., so that enterprises in the hardware investment and maintenance of increasing costs. In such an environment, for the sake of their own development, enterprises will invest funds in other departments that are more likely to produce benefits, and the IT investment in information system development will naturally be affected.

Relatively low utilization of 2.2 resources

In the IT development process of Chinese enterprises, there is one of the most common problems, that is, the uneven utilization of enterprise resources. Here, the problem can be explained according to a set of relevant data: in large enterprises, the average server utilization rate of enterprises is as high as 30%, in most cases, it is lower than 30%, and even the average utilization rate of some enterprises is only 5%-8%. Especially when there are periodic low peaks, the use of servers is largely idle, which runs counter to the goal of developing a conservation-oriented enterprise.

3 Effective countermeasures to solve the problem of enterprise IT resources.

Based on the above analysis, we know that a private cloud is a shared multi-user environment built on an efficient, virtualized infrastructure within an enterprise. Therefore, the biggest role of the private cloud is to complete the enterprise's own self-service through the standardized platform provided by the system and server, and to better complete the enterprise data calculation in the application and request of the business team, which is a key element of the private cloud. Therefore, in view of the problems existing in the IT operation and development of enterprises, the following countermeasures are put forward.

3.1 improve resource utilization

In the operation of enterprises, it is necessary to establish private cloud according to the existing situation, combine the internal and external environment of the enterprise, make rational use of the characteristics of cloud computing, integrate all resources, increase the utilization of servers, conduct unified analysis and use of computing resources, and improve the flexibility of the system and servers through virtualization technology. In this way, the supply time can be significantly shortened, and at the same time, it is also possible to integrate new development resources and test the application within a limited time.

In addition, according to the system performance growth forecast, strengthen the ability of the processor, the performance and function of the server become more and more powerful, and to combine the needs of end users, understand their real-time dynamics, increase the development and research efforts, on the one hand, can meet their own business objectives under certain conditions, on the other hand, can provide customers with greater convenience.

3.2 reduce operating costs

It is necessary to greatly save energy through cloud computing, make full use of enhanced industrial standard hardware and software, while improving availability, control cost increase to the greatest extent, use new business intelligence tools to improve capacity management, improve server hardware resource utilization, and ensure high availability of servers, that is, disaster preparedness and migration efficiency, improve server management efficiency, and allocate server resources flexibly and efficiently. Comprehensively speaking, it is to improve the service efficiency of the application, simplify the cumbersome server operation and maintenance, and minimize the increase in cost.

3.3 control public risk

Using a private cloud can solve the risk of data theft and service disruption, which is the biggest problem to face in cloud computing. Therefore, through the privatization of cloud computing, enterprises can not only get the experience of cloud computing in a secure and shared environment, but also improve the utilization rate and reduce the total amount of resources needed on the basis of controlling risks. In terms of cloud computing security practices, Microsoft's security solution BRS can reduce cost increases and control cost increases.

Therefore, enterprises through the private cloud, improve server utilization, reduce the increase in costs, the pursuit of efficiency and security, a large number of system information for unified analysis and calculation, and through the virtual host, effectively solve the problems existing in the operation of enterprises, so as to promote the better development of enterprises.

4 Precautions for Private Cloud Building Applications

First of all, cloud computing requires scientific programming and specific technical support, such as grid computing, distributed computing, parallel computing, utility computing, network storage, virtualization, load balancing, etc. These are the basic theories and problems that enterprises should master in the process of using private cloud. Moreover, enterprises need to save their data centers and improve the security of information data on this basis.

Secondly, it is necessary to strengthen the hierarchical sorting of server resource processes and improve server performance through the hosting of ERP/SCM, CRM, BI and other applications and middleware.

5 Summary

All in all, in the modern information technology environment, the role of private cloud is becoming more and more important and eye-catching, especially for the operation and development of enterprises, which has a profound impact. Therefore, the scientific application of "private cloud" by enterprises will better solve the bottleneck problem in development.