What does an operation and maintenance engineer mainly do?
Responsible for the operation and maintenance of a certain product set. The work includes the release, deployment, change, monitoring, event processing, optimization and system development of application systems. Architecture design and tuning, provision of operation and maintenance reports, etc. IT category
What is the main job of an IT operation and maintenance engineer?
Responsible for the daily inspection and maintenance of the core equipment of the IT system in the computer room, and be able to configure them as required to ensure the normal and safe operation of the system;
2. Responsible for the server system Security management, do a good job in data security and virus prevention;
3. Responsible for on-site technical support and timely resolution of various technical failures;
4. Responsible for database management, and related system testing;
5. Responsible for formulating data backup plans for each server and ensuring backup data availability;
6. Assist Helpdesk with some desktop technical support work when necessary;
7. Responsible for communicating with relevant departments and providing timely feedback to users;
8. Writing and archiving of operation and maintenance documents.
What does operation and maintenance do?
Operation and maintenance is a very broad definition. Different companies have different responsibilities and positions at different stages. If we take the literal meaning of operation To understand it, if you think it is just a matter of typing a few lines of operation commands, you would be wrong. For a start-up company, the work of an operation and maintenance engineer may start from applying for a domain name, purchasing/renting a server, launching it, adjusting the settings of network equipment, deploying the operating system and operating environment, deploying code, designing and deploying monitoring, preventing vulnerabilities and attacks, etc. . For large companies, the requirements for operation and maintenance work are getting higher and higher, which has also given rise to a more detailed division of operation and maintenance: from a broad perspective, it can be divided into website operation and maintenance, system operation and maintenance, network operation and maintenance, and database operation and maintenance. , IT operation and maintenance, operation and maintenance development, operation and maintenance security and other directions.
Many non-practitioners’ views on operation and maintenance generally belong to a very small responsibility of IT operation and maintenance: installing the system^^. Some R&D engineers' views on operation and maintenance are limited to a few points of operation and maintenance work: deployment, change, monitoring, and response.
No matter what operation and maintenance is done, the most basic responsibility is to ensure that the business can run stably. So you must become the owner of business stability. Some people usually think that operation and maintenance engineers are like firefighters, responding to abnormalities and putting out fires 24/7. But the careers of stability operation and maintenance engineers are closer to those of doctors. Doctors are also divided into various departments, including emergency departments. They need to first determine the patient's problem and prescribe the right medicine.
Businesses have various needs. If operation and maintenance engineers can meet business needs, or proactively explore business pain points and improvement methods, they can achieve more value for the business.
When meeting business needs, we should prioritize and prioritize the very important needs for rapid business development, such as stability, deployment and change efficiency, and capacity management. Needless to say, stability. If users cannot use your business stably, any product features will be of no value. For a rapidly developing Internet company like Baidu, a large number of upgrades and updates need to be provided to users every day. How to meet the product upgrade needs as quickly as possible on a large remote cluster while making users unaware of the upgrade process is our goal. Pursue. When users use Baidu to measure whether the network can access the Internet, it is a compliment to the quality of operation and maintenance.
Secondly, you can look at the needs of different businesses horizontally. If we can abstract the needs of multiple businesses and turn some universally valuable work platforms into platforms (such as databases, CDNs, monitoring, traffic access and scheduling, big data storage and computing), we can also conduct in-depth research in this direction. develop. With Baidu's huge traffic and server scale, you not only have huge space and challenges, but also have sufficient resources and support to develop and apply the most cutting-edge technologies in the industry.
After a certain amount of accumulation, you can enter the macro and micro levels and consider the intelligent deployment and scheduling of business from the entire company level (involving various points such as network, hardware, system, application development methods, etc.) , to further improve efficiency and save costs.
If you can understand the business, understand the business model, and closely integrate the business to optimize and innovate, this is another way for operation and maintenance engineers to reflect their value.
There are many product innovations, patent applications, paper publications, and improvement of business indicators, all contributed by operation and maintenance engineers directly or in a cooperative manner.
YBX:
Job content of operation and maintenance engineers
In the entire life cycle of software products, operation and maintenance engineers need to participate in timely and play different roles , so the work content and direction of the operation and maintenance engineer are very many: Incident management: The goal is to restore the service as quickly as possible when an abnormality occurs in the service, thereby ensuring the availability of the service; at the same time, in-depth analysis of the causes of the failure, and promoting and repairing the existing problems of the service problems, and at the same time design and develop relevant plans to ensure that losses can be effectively stopped when service failures occur. The main work contents in this area include: Problem discovery: Design and develop efficient monitoring platforms and alarm platforms, and use machine learning, big data analysis and other methods to summarize and analyze a large amount of monitoring data in the system, in order to solve the problem when an abnormality occurs in the system. Quickly detect problems and determine the impact of failures. Problem handling: Design and develop efficient problem handling platforms and tools, which can quickly/automatically make decisions and trigger relevant stop-loss plans when an abnormality occurs in the system, and quickly restore services. Problem tracking: Determine the root cause of the problem by analyzing various system performance (logs, changes, monitoring) when the problem occurs, and formulate and develop plan tools. Change management: Complete iterative changes to product functions in a controlled manner as efficiently as possible. In this regard, the main work contents include: Configuration management: Manage the relationship between multiple modules and versions involved in the service and the accuracy of the configuration through the configuration management platform (self-research, open source). Release management: Ensure that every version change can be released to the production environment safely and controllably by building an automated platform. Capacity management: During the service operation and maintenance phase, in order to ensure the rationality of service architecture deployment and grasp the redundancy of the overall service, it is necessary to continuously evaluate the system's carrying capacity and continuously optimize it. The main work in this area includes: Capacity assessment: simulate actual user requests through technical means to test the maximum throughput that the entire system can bear; analyze the data during the stress test process by establishing a capacity assessment model to assess the capacity of the entire service. Capacity optimization: Based on capacity assessment data, determine system bottlenecks and provide capacity optimization solutions. For example, system capacity can be efficiently improved by adjusting system parameters and optimizing service deployment architecture. Architecture optimization: In order to support the continuous iteration of the product, continuous architecture optimization and adjustment is required. To ensure that the entire product can maintain high availability under the conditions of increasingly rich and complex functions.
What do operation and maintenance engineers do?
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To put it simply, an operation and maintenance engineer manages the data service of a certain software product. Every day, he wanders among the huge English letters and *** numbers. Those who are more awesome can reach the level of hackers
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What are the general tasks of a Linux operation and maintenance engineer
3. Proficient Linux operating system, proficient in deploying and maintaining Linux servers and setting up various services on Linux servers;
4. Proficient in writing shell scripts;
5. Familiar with TCP/IP protocol;
6. Good English reading and writing skills, priority will be given to those with excellent listening and speaking skills.
7. Proficient in LAMP, LNMP and Mysql, oracle database maintenance
Understand the work content and know whether you can bear it before proceeding
Operation and maintenance engineer Recruitment
information, you'll have a greater chance of finding a job you like.
What skills do operation and maintenance engineers need?
The best way is to look at the recruitment profiles of some recruitment websites, which are very comprehensive.
Job responsibilities:
1. Responsible for the company's overall network system and Maintenance of subsystems;
2. Responsible for overall network architecture planning, implementation, optimization, and security;
3. Responsible for writing operating specification documents for the overall network and integrating system resources;< /p>
4. Responsible for the overall network risk assessment and backup system implementation;
5. Research mainstream Internet application technologies, and be responsible for testing and applying this to the current company's business systems;
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6. Planning, implementation and maintenance of the company's overall network architecture;
7. Actively discover problems, propose rationalization construction, and actively propose optimization methods and suggestions.
Qualifications:
1. College degree, more than 3 years of work experience;
2. Able to withstand a certain amount of work pressure and have good communication and coordination skills And the ability to handle emergencies independently;
3. Familiar with unix/linux operating systems;
4. Familiar with the installation and debugging of different databases under Linux, and proficient in the use of shell script language;< /p>
5. Be proficient in L.A..M.P architecture and have rich experience in the deployment, construction, optimization and troubleshooting of L.A..M.P architecture. Applicants with experience in operation and maintenance of L.A..M.P architecture under high load and large access volume will be given priority.
6. Be familiar with different storage solutions under Linux and manage more than 50 Linux server groups at the same time. Candidates with overall management experience are preferred;
7. Use syslong to collect various key Export equipment status, make full use of snmp protocol, plan and set up a complete network monitoring system;
8. Have independent working ability, good communication skills and team spirit, high sense of responsibility, and be proactive< /p>
Please tell us what the daily work of a Linux operation and maintenance engineer is like.
1. Operating system status monitoring
Log in to the system every day to check the load of the system. , whether there is an error log or alarm log.
2. Operating system troubleshooting
Analyze the cause of the alarm or error based on the operating system fault log to solve the problem and ensure the high availability of the operating system.
3. Server status confirmation
In addition to running the operating system, some applications or databases must be installed on the server. Operation and maintenance engineers need to check the applications running on the Linux system every day. Or whether the database status is normal. 4. Backup
The specialty of operation and maintenance engineers is database backup and recovery. Generally speaking, as long as you set a backup strategy for the database, it will back up by itself. You only need to monitor whether the backup task is executed.
5. Server tuning
This requirement is relatively high. As the use time of Linux increases, the status will decline. Operation and maintenance engineers who are capable can perform maintenance on the operating system. and database performance tuning to ensure that the system is in an optimal state.
Generally speaking, the work of operation and maintenance engineers is mainly based on monitoring, and they will only deal with problems when they arise, which is usually very relaxed. I am responsible for the operation and maintenance of six servers of three information systems, which is quite easy.
What does a software operation and maintenance engineer do?
It is the operation and maintenance of system software, solving usage problems in daily work, and software maintenance, update and installation, etc.
What is the job content of an operation and maintenance engineer?
It depends on what you do. There are many types of operation and maintenance work. If you are a server operation and maintenance engineer, you should mainly maintain the stability of the server, troubleshoot network problems, and continuously optimize performance. and so on