In the new era, as the functional departments and personnel in charge of computer management system, they should fully realize the importance of computer management system security, and formulate targeted prevention and control strategies according to the existing problems of computer management system to ensure the safety of the system. The following is what I recommend to you, I hope you like it!

Chapter 1 "Research on Maintenance of Enterprise Computer Management System"

Enterprises have entered the era of computer management, and the manual intervention of business personnel is less and less. A large amount of data is completed by computer system, and business personnel are freed from the daily affairs of dealing with a large amount of data. With the realization of automation, there are fewer and fewer paper vouchers, and enterprise data management relies more and more on computers, which requires higher and higher stability and security of computer systems. According to the practical experience of computer system maintenance, combined with practical cases, the implementation and maintenance of computer system are studied.

Keywords: computer management system; Keep the angle a; Keep the angle b; Massachusetts Institute of Technology; Very different; Distributed submission

About the author: Hao Yajun * *1980-* *, female, senior engineer of ERP software division of Shanghai Baoxin Software Co., Ltd., whose research direction is software design, implementation and maintenance of ERP management information system in steel industry.

Introduction to 0

With the advent of the information age, enterprise management, large and small, depends on computer systems. At present, many software companies specialize in customizing information management systems for enterprises, and often pay more attention to consulting planning and software implementation, while ignoring the operation and maintenance work after the project goes online. The author thinks that the maintenance of computer system is as important as the implementation of the project. The operation and maintenance work is mainly responsible for the abnormal situation in the daily application of the computer system, which will be handled promptly and quickly without affecting the operation of business personnel. And regularly back up the data of the system, regularly check the execution efficiency and load of the system every day, and regularly check whether the data processing program of the system is normal.

1 Operation and maintenance of computer system

In recent years, the author has been engaged in the operation and maintenance of computer systems. The production and marketing management system of iron and steel enterprises has been running for 10 years. The author is responsible for one of the modules. When I first took over the module, I didn't know much about the overall structure of this large-scale system, and I didn't even know how to log in to the system, so I learned the system as soon as possible and learned how to find the program, how to compile it, and how to enter the database. Then we are faced with new demands or data that need to be modified in the daily work of business personnel. For the new requirements put forward by users, we must first understand the business and locate the business we know in the system. Whether it is necessary to modify existing programs or write new programs in the system needs maintenance personnel to judge. After understanding these basic contents, I can basically deal with simple problems in daily operation and maintenance.

1. 1 Main contents of computer system maintenance

With the development of business, business needs to add new functions, so it is necessary to communicate new business with users, understand users' needs and apply them to the system. The impact of new functions in the system on the current business in the system should be minimized, and the new functions should not affect the original normal business.

The main contents of computer system maintenance are:

(1) The system stops regularly for data backup and garbage cleaning.

② Check the execution efficiency and system load of the system regularly every day;

③ Check UPS equipment regularly;

④ Monitoring and maintenance of server and personal terminal computer hardware;

⑤ When analyzing data, business parties often ask questions about the system, and explain the context logic of data when business parties ask questions about data;

⑥ Occasionally, the data input by the business party is wrong, and maintenance personnel need to modify the data. When modifying data, all involved tables must be modified accordingly;

⑦ When consulting the processing logic of the computer system, the business party needs to explain the logic patiently;

⑧ For some background batch programs, regularly monitor whether the execution results are correct every day, and conduct fault handling if they are incorrect;

Pet-name ruby when called to do the first time response.

1.2 operation and maintenance functions

The operation and maintenance work is complicated. Once a problem occurs, it should be solved in time, otherwise it will have an impact on other modules, resulting in longer processing time and greater impact. Handling faults in time is the basic requirement of operation and maintenance. Dealing with faults in time depends on the accumulation of experience and the accurate location of problems.

Operation and maintenance personnel are people who deal with users in the front line. When dealing with daily operation and maintenance work, they should understand the needs of users. Some potential projects were excavated at this time, which not only solved the problems for users, but also increased the project opportunities for the company. Operation and maintenance personnel represent the image of the company. Computer system operation and maintenance is a service. Operation and maintenance personnel should have a sense of service and let users trust them. At the same time, the operation and maintenance personnel should take back some suggestions put forward by users and consider them in future projects, constantly improve the company's software and improve market competitiveness.

For the operation and maintenance work, each position has an angle A and an angle B. The so-called angle A and angle B refer to different roles of the same position. Angle A refers to the main operation and maintenance personnel of this position and is the person in charge of this maintenance position. During the vacation or illness in Angle A, the operation and maintenance work will be completed by Angle B, which will not delay the user's work. Of course, the person who is the A corner should also be the B corner of other modules, that is, the operation and maintenance personnel should be familiar with not only the module they are responsible for, but also other modules.

1.3 Relationship between operation and project

The relationship between operation and maintenance and the project means that the personnel of the project implementation team and operation and maintenance team will change under normal circumstances. When the project is implemented, we should not only consider the problem from the perspective of the project, but also consider the future operation and maintenance. For example, to process a batch of data, it is necessary to take out the data in Table A and write it into Table B according to certain logic. If the system server is efficient, all the data in table A will be fetched in a circular way, one by one, and each data will be added to table B after logical processing until all the data in table A are processed; If the efficiency of the system server is not very high, it is more efficient to join INSERT…SELECT… query at the same time, but the logic in the select statement is more complicated. When doing a project, both methods are feasible. If you can consider the later operation and maintenance work, the first method is relatively better. It is easier for the operator to read the program than to modify it, and it is not easy to make mistakes after the program is put into operation. In the second way, if the user proposes to add logic or modify logic in the operation and maintenance stage, it is not easy to understand the original SELECT logic. Even if logic is added or modified on its basis, it is easy to make mistakes, and problems such as data errors are easy to occur after the program is online.

During operation and maintenance, we should also pay attention to the following points: for programs that process batch data together, the amount of data is very large, so when adding data, mit processing should be done. Then, when such a program has an abnormal error, we must check whether any data has been added and mark the data with time or other fields, so as to quickly find the data that has been mit, delete the found data and re-execute the program.

1.4 Operation and Maintenance Process Management

In the process of operation and maintenance, every event, problem and new demand raised by users should be recorded. People who ask questions should record the questions. After handling the problem, the operation and maintenance personnel will describe the cause and handling process of the problem, and then close the problem. Users' new requirements also need to be recorded and described clearly first. After receiving the demand, the operation and maintenance personnel communicate with users, design the system, write the program, test and finally put it into use. The operation and maintenance personnel record the processing process according to the recorded demand sheet, and then close the demand sheet. This process is an operation and maintenance management process, which records all the operation and maintenance processes, on the one hand, the audit requirements of the system, on the other hand, the interaction with users.

Operation and maintenance work also requires a lot of communication. Because there are interfaces between systems, when the system fails, it needs to be repaired, and related systems need to be adjusted accordingly, so it is necessary to communicate with the operation and maintenance personnel of other systems. Pay attention to the tone when communicating and describe the problem from the perspective of others. Operation and maintenance personnel need to communicate effectively with users and operation and maintenance personnel of surrounding systems. Good communication will get twice the result with half the effort

1.5 Actual case

Business personnel need the operation and maintenance personnel to handle the incident as follows: after receiving the short message from the system operation and maintenance platform on the mobile phone, the operation and maintenance personnel log in to the operation and maintenance platform to judge the incident, contact the business personnel who put forward the incident by telephone, understand the specific incident through communication, and find a solution. Sometimes after communication, it is found that it is a misunderstanding of the business personnel, and then the business personnel explain it, then describe the solution on the operation and maintenance platform, and then close the event.

Sometimes the events to be handled need to analyze the data. For example, a program has to deal with a large amount of data, and there is a conflict between the execution of the program and the normal backup of the database. When backing up a database, the table should be locked first, which is exactly the case that programs that deal with a large amount of data are prone to make mistakes when adding this table. After receiving such an event, first check the wrong program to see if the data is distributed in the program. Generally, when dealing with a large amount of data, distributed submission is needed. For the database, submitting millions of data at a time will lead to full, so the programmer is required to submit 1000 data at a time when coding, which obviously reduces the load of the database. However, for the mistakes just described, first of all, it depends on whether mit is written in the program. If so, you need to check whether there is any data successfully added in the written table. As for how to find out the data, it involves marking the project with time or other fields when coding, so as to query when the data is wrong. When writing a program, use the time domain as a marker, so that when dealing with faults, distinguish the time domain to see if there is data when the faults occur. If there is data, delete the data, and resubmit the program to process the data after the database backup is completed, so that there will be no data duplication. After the event processing is completed, the event is closed after the event processing process is described on the operation and maintenance platform, marking the end of event processing.

2 conclusion

The maintenance and implementation of computer systems are equally important. Whether it is the implementation of a project or the maintenance of the system, the author thinks that studying hard is the most important. No matter how complicated things are, if you can clear your mind calmly, it will be solved. Combining with my own work experience, the author studies the maintenance of computer system through examples, in order to provide some reference for colleagues engaged in related work.

References:

[1] Shenhui Jirui. Discussion on the maintenance method of computer laboratory software system [J]. Journal of Xi University of Posts and Telecommunications, 2007 * * * 5 * *.

[2] door yunhui. Research on ACTX Balance of Cost Accounting in Iron and Steel Manufacturing Industry [C]. Baosteel International Conference, 20 13.

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