Question 2: What does the Operation and Maintenance Specialist do? He is engaged in network operation and maintenance.
Question 3: What common technologies should operation and maintenance personnel master? The things needed for operation and maintenance are very complicated, from hardware equipment to software maintenance.
For the installation network layout of hardware devices such as servers, it is best to know the settings of firewalls, routers and switches.
Deep understanding of linux system. It is best to go deep into the kernel and code level.
Understand and maintain applications deployed on linux servers, such as Tomcat Apache WebLogic Nagioscacti. Including the software written by developers, all need to put forward maintenance and optimization suggestions, and it is best to know js and java languages. Monitor the usage of servers, such as disks, cpu, mem, io, etc.
Understand the architecture design and scripting of automated operation and maintenance.
For example, building a cluster or load mode architecture, etc. To realize multi-machine hot standby and high availability of the server.
Scripting, in order to reduce manual operation and improve execution efficiency and accuracy, generally requires language foundations such as shell, python and perl, including the use of small languages such as awk and except.
database maintenance
Familiar with mainstream database operations, mainly adding, deleting and checking.
Oracle, mysql, Mango db, db2, memcache, redis, etc.
Question 4: What is operation and maintenance? What are the types of operation and maintenance work? First of all, briefly describe:
Operation and maintenance generally refers to the maintenance of network software and hardware that has been established by large organizations, among which the traditional operation and maintenance refers to information technology operation and maintenance (IT operation and maintenance). The so-called IT operation and maintenance management refers to the comprehensive management of IT operation environment (such as software and hardware environment and network environment). ), the IT business system and IT operation and maintenance personnel are in charge of the IT department of this unit.
With the advancement of informatization, operation and maintenance management will cover all the contents covered by the management information system that supports the whole organization. In addition to the traditional IT operation and maintenance, it also expands the business operation and daily management operation and maintenance. The object of its participation has also expanded from IT departments and personnel to the management and departments of the organization and their related business backbones.
The final result of operation and maintenance is the maintenance of various performances in software operation.
Second, the scope of work:
IT operation and maintenance is the core and key part of IT management, and it is also the most complicated part. This process is mainly used for the daily operation management within the IT department, and the objects involved are divided into two parts, namely the IT business system and the operation and maintenance personnel. Business operation and maintenance is the core and key part of business requirements and user experience, and it is also a process that needs to describe, load and maintain different business requirements with complex and ever-changing contents. There are two kinds of people involved, one is the technicians who provide business support, and the other is the management and business backbone of the whole organization. With the improvement of business operation and maintenance environment and tools, functions and experience, technicians will gradually withdraw from this field; Daily management operation and maintenance is to control the demand, process and result of IT operation and maintenance, as well as the running state of the whole management information system, so as to realize the recording and tracking of application changes, changes and tracking in different regions, risk prediction and prevention management of environment and applications, etc. The objects involved are mainly the managers and participants of the operation and maintenance management department.
Third, the job classification:
1)IT operation and maintenance
IT operation and maintenance is the core and key part of IT management, and it is also the most complicated part. Common IT operation and maintenance include hardware-based antrol operation and maintenance platform, software-based HP Operations Orchestration, IBM tivoli, open source software Nagios and so on. Relatively speaking, antrol operation and maintenance platform is the easiest to use, and its powerful functions depend on HP and IBM. This stage is mainly used for the daily operation management within the IT department, and the objects involved are divided into two parts, namely the IT business system and the operation and maintenance personnel. The management content of this stage can be subdivided into six subsystems:
Device management: monitoring the running status of network devices, server devices and operating systems.
Application/service management: Monitor and manage all kinds of application support software, such as database, middleware, groupware and all kinds of general or special services, such as email system, DNS, Web, etc.
Data/storage/disaster recovery management: unified storage, backup and recovery of system and business data.
Directory/Content Management: This part mainly deals with content management and public information management that enterprises need to publish uniformly or customize for people.
Resource asset management: manage the resource assets of IT system in an enterprise, which can exist physically or logically and can interact with the financial department of the enterprise.
Information security management: This part contains many aspects. At present, the international standard of information security management is ISO 17799, which covers ten control aspects, 36 control objectives and 127 control methods of information security management, such as enterprise security organization, asset classification and control, personnel security, physical and environmental security, communication and operation security, access control and business continuity management.
2) Business operation and maintenance
Business management: including monitoring and managing the operation of the enterprise's own core business system. For business management, we mainly focus on CSF (key success factor) and KPI (key performance indicator) of business system:
Provide business demand sequencing, demand change and user experience optimization for the whole organization and various business systems ... >>
Question 5: What are the positions in the operation and maintenance department and what are their responsibilities? The IT operation and maintenance department is generally composed of system engineers, network engineers and database administrators.
Responsibility can be known by name. System engineers mainly deal with things at the operating system level, such as building the environment, maintaining things at the system level, and handling system failures. . Network engineers mainly deal with the network, ensure the smooth flow of the network and deal with network problems. The database administrator is responsible for maintaining the database. Generally, the operation and maintenance departments of large enterprises have detailed division of labor. Basically, network engineers and system engineers in small enterprises hold a position, and occasionally they have to make a guest appearance as DBA. Sometimes they can even be R&D ambassadors. The scope of operation and maintenance responsibilities is very large, so I won't go into details.
Question 6: What does 6:IT operation and maintenance include? Aiming at the characteristics of IT operation and maintenance, such as heavy workload, complex technology and strong professionalism, Shandong Software Evaluation Center provides professional IT operation and maintenance services based on MaxValue IT lifecycle management platform, helping users to maintain information technology applications with less cost, shorter duration, less risk and more professional services. Desktop management services Desktop management operation and maintenance work is complex and takes up a lot of working time. We provide desktop-level operation and maintenance services, including basic file maintenance, software maintenance, facility maintenance and other professional operation and maintenance services. Professionals can do professional things more quickly and efficiently, and reduce the total cost of enterprise IT operation and maintenance. Facilities operation and maintenance services mainly include desktop terminals of IT systems, including the maintenance of hardware facilities such as PC terminals and printers. Others include the maintenance of office network, windows, antivirus and related office software systems to ensure the normal operation of enterprise desktop terminal systems. The service mode is realized by the on-site duty personnel. Specifically, we will arrange corresponding professional engineers to be responsible for the operation and maintenance of the desktop system according to the number and types of equipment in the enterprise desktop terminal environment and the complexity of related software systems. Infrastructure maintenance provides infrastructure-related documents, physical environment, computer network operation and maintenance, emergency rescue and other services to ensure the normal operation of users' existing infrastructure and reduce the overall management cost. At the same time, according to the daily maintenance data and records, provide users with overall infrastructure construction planning and suggestions, and better provide a strong guarantee for users' information development. The equipment environment operation and maintenance service mainly aims at the IT equipment and environment in the user data center, including mainframes, minicomputers, storage devices, switches, etc. And provide services such as equipment monitoring, simple fault handling, data backup and batch operation at the end of the day, so as to ensure that any equipment system fault in the data center can be found in time and reported in accordance with relevant management procedures, so that the fault can be responded and handled in the shortest time, and the whole DCC system can run safely and stably. We will arrange full-time engineers to be on duty according to the quantity, type and complexity of the equipment in the user data center. If the equipment breaks down, the on-site engineers will report it in time according to the user's management change process, and their corresponding service providers will be responsible for handling and solving it. System software maintenance provides the operation and maintenance of system software related files, host storage devices, system software and system data, as well as emergency rescue services, to ensure the normal operation of user system software and reduce the overall management cost. At the same time, coordinate the internal operation of various business application systems to improve system availability. Among them, the software part of the system includes operation monitoring, performance optimization, fault diagnosis and capacity planning. Operation monitoring is mainly through the monitoring of CPU, memory, disk and other resources of hardware such as servers, the monitoring of network resources and the monitoring of software system operation, so as to find out the problems existing in system operation in time. Performance optimization is mainly to stress test the application software through technical means, predict and test the runtime performance of the software system, analyze and locate possible performance bottlenecks, optimize system performance and improve system capacity. The performance bottleneck is caused by the design and implementation of the software itself and the improper configuration of software operating environment. We will arrange full-time engineers to be on duty according to the number, type and complexity of user systems. If the system fails, the field engineers will report it in time according to the user's management change process, and their corresponding service providers will be responsible for handling and solving it. Information security maintenance provides information security-related file maintenance, monitoring and early warning, risk assessment, security reinforcement, emergency rescue operation and maintenance, information security awareness training and other services, timely grasp the status quo and configuration information of network security system resources, and comprehensively improve system information security. By studying national standards, policies and regulations and accumulating knowledge; Through the research on the characteristics of various industries and business processes and the summary and analysis of engineering experience; Through the research and application of new technologies; Through the statistical analysis of the market development trend, it is predicted that the future security service market in China will have broad development prospects. At the same time, through the analysis of the driving factors of the development of the security service market, the security service system will include several key directions such as security consultation, grade evaluation, risk evaluation, security audit, operation and maintenance management, and security training. What users need more is a targeted, personalized, modular and all-round security service system, which users can choose at will.
Question 7: What specific work does the operation and maintenance management of 7:IT industry mainly do? What are the requirements for operation and maintenance personnel? If you are a fresh graduate, in fact, your company may not have too many requirements for LZ's existing IT capabilities, mainly for personal comprehensive ability and quality. Most IT knowledge needs to be trained and studied after entering the company. IT operation and maintenance is mainly the management of various applications deployed by the company, including performance monitoring, user problem response, application fault handling and so on.
Question 8: What are the field operation and maintenance personnel like?
Question 9: What does website operation and maintenance do? One: the operation and maintenance engineer should ensure the stability of the online system, which is the core value of the operation and maintenance personnel. Focusing on this is a very big topic, which will be refined later.
2. Infrastructure: Safety, quality, efficiency and cost are the four aspects that operation and maintenance personnel can carry out operation and maintenance work. Around these four aspects, we need to formulate norms and processes, establish corresponding systems to ensure efficiency, standardize and improve efficiency, and so on.
Quality: stereoscopic monitoring system; Speed measurement, backup and disaster recovery, etc.
Efficiency: system construction, machine initialization standardization, software installation standardization, monitoring standardization, etc. Improve efficiency and deploy scripts in batches.
Security: Internet security, system support, cgi scanning, etc.
Cost: budgeting, etc. , rationally optimize deployment and balance cost and experience.
Three. Sublimation of infrastructure: everything is based on user value.
1: Deploy in different places and tolerate disasters in different places.
2. Flexible and available, flexible and lost.
3. Network-wide scheduling to achieve a balance between cost and user experience.
4. Optimize the user experience: speed up
On the work breakdown of operation and maintenance personnel from a project
1: Putting forward the corresponding operation and maintenance requirements at the initial stage of the project requires the data that the operation and maintenance engineer may need in the operation process, which can be considered from two directions: a monitoring; B evaluate the operation and maintenance indicators of the system, such as interface call data and user access speed. , put forward the corresponding requirements, realize the development at design time, and facilitate the collection of these data for system evaluation after the operation and maintenance goes online. At this stage, it is necessary to understand the system architecture and evaluate whether it is reasonable in operation and maintenance. Is it convenient to deploy, what are the operation and maintenance risks and what levels can be avoided? Do a good job in disaster tolerance, cache data loss, db down drop, etc. And the design of coping scheme and whole network scheduling scheme.
2. In the project development stage, operation and maintenance should also participate in it to understand the development of corresponding operation and maintenance requirements.
3. Project test release: The Operation and Maintenance Department is responsible for setting up the operation environment, releasing it online and monitoring the stability of the online system.
4. After the project is released, ensure that the corresponding monitoring, backup and disaster recovery are completed.
5. Project operation stage: deal with the alarm in time, evaluate the development trend of the system, expand the capacity, etc. , predict the possible wind direction, and formulate corresponding countermeasures.
6. Related exercises
7. Do a good job in system optimization and improve the user experience.
Fifth, break down the work of operation and maintenance personnel from the peripheral roles they face.
1: upstream strategic compliance: understand the development direction of the company and adjust the operation strategy.
2; exploit
3: Testing
4. Quality assurance
5: Boss, etc