Summary of hardware maintenance skills in Tiancheng IT service talents

Maintenance Skills

Server hardware, as the basic platform for application software deployment, is the core device in the infrastructure. If a problem occurs on the server, the normal operation of the service will be affected. Therefore, server O & M management is particularly critical for the entire it O & M management of enterprises.

How to maintain the server hardware? What server hardware O & M knowledge or skills are mastered? It is something that every server hardware O & M personnel should think deeply about. Server O & M personnel's work is listed in the following list, but these are also typical responsibilities of server hardware O & M project engineers:

• Develop a server application plan and implementation plan;

• Evaluate various Server products and technologies to provide effective data for IT management and planners;

• Check the hardware execution, ensure the normal execution of the hardware, and promptly handle the detected hardware alarms. Remove dust from servers with a large amount of dust on a regular basis;

• Upgrade the hardware microcode and, if necessary, upgrade or migrate the system and data (physical migration of hardware );

• Evaluates the implementation of hardware to gradually improve the availability of the overall hardware;

• Diagnoses, locates faults, and solves any hardware problems;

In view of the responsibilities of the above server hardware O & M project engineers, as a qualified server hardware O & M project engineers, they should possess and master the following maintenance skills or knowledge:

• Have a certain understanding of the server family products of various vendors. In particular, the family products of the server equipment vendors currently in operation and maintenance need to be paid special attention, which will be of great help to provide information for server upgrades or upgrades in the future.

• Provides overall server application planning, deployment, and mounting capabilities. This is an essential skill for server hardware O & M personnel. According to the cleanliness of various connections (such as network cables, power cables, and optical fiber cables) at the backend of the machine, the overall capabilities of the O & M personnel can be preliminarily inferred.

• For servers that need to be maintained, master the structure of the server from the hardware, and gain an in-depth understanding of the physical location of each accessory in the server, which is very important for locating hardware faults. For example, IBM will provide servcie guide manual for various minicomputers, which will provide a detailed description of the location of each server component.

• Understand the meaning of the server indicator and how to handle it.

• Skills in hardware fault diagnosis and accessories replacement. First, we need to effectively locate the fault issue, so we can only talk about how to replace it. There are many fault locating methods.

Storage Device maintenance skills

12.2.5.1 disk array and NAS device Maintenance Technology

1) familiar with the concepts and principles of disk arrays, such as understanding raid principles, requirements and advantages and disadvantages for creating each raid level, familiarity with concepts and principles such as Lun and striping, and Path Management;

2) be familiar with raid creation and operation and configuration methods of disk arrays of different models. For example, be familiar with the appearance and indicator meanings of common disk arrays, familiar with how different hosts connect to the disk array for normal use of the host, the concept of hot spare disk and how to set;

3) master the daily maintenance and monitoring points of disk arrays and NAS devices;

4) understand the relationship between disk arrays and NAS device exceptions and applications. For example, it is found that the database is slow because the cached battery of the disk array is abnormal;

5) if the equipment only needs to run, problems will inevitably occur. Professional and senior project engineers can locate faults as soon as possible, so as to resolve faults and reduce the impact time of faults. Master the faults and Solutions of common accessories of disk arrays and NAS equipment, such as how to ensure data security and replacement of New disks, and how to infer and handle fan faults; how to determine and handle power supply faults; how to infer and handle controller faults.

6) familiar with firmwear versions and upgrade steps of disk arrays and NAS device controllers;

7) master the daily change services of disk arrays and NAS devices, for example, adjust the existing storage space as needed, update the ing information of the existing storage hosts, adjust the existing storage raid mode, and adjust the existing Hot Standby Storage disks.

8) familiar with the routine inspection of disk arrays and NAS devices, including checking the power status, Fan Status, hard disk health status, and system logs of storage devices.

12.2.5.2 tape library Maintenance Technology

1) familiar with tape library related technologies, such as tape read/write technology, drive type, manipulator characteristics, and tape specifications;

2) familiar with the operation panel and features of common tape libraries, proficient in tape library installation and configuration;

3) be familiar with Fault Diagnosis and replacement of tape library accessories (drivers, power supplies, fans, etc;

4) be familiar with the firmwear version features and upgrade steps of the tape library;

5) familiar with routine inspection of the tape library, mainly checks the basic information, execution status, indicators of various components, operability of the control panel, and the execution environment of the tape library (temperature and humidity, dust, voltage, etc ).

Network Device O & M skills

How to maintain hardware for network devices? What network O & M knowledge or skills are mastered? It is what network O & M personnel need to think about. The Network O & M personnel's work is listed below:

• Maintain and manage all network systems, such as switches, routers, and firewalls, and perform routine maintenance for these devices;

• Provides the design scheme and opinions for network construction projects such as network creation, expansion, transformation, and integrated wiring;

• Evaluates network security conditions, including security devices and policies, active security management, security event processing, intrusion monitoring and analysis;

• Analyzes network faults and promptly handles and solves network problems.

In view of the responsibilities of the above network O & M project engineers, as a qualified network O & M project engineers, they should possess and master the following maintenance skills or knowledge:

• Master Computer Network principles, have basic network knowledge, and understand various network protocols and technologies, such as VoIP, QoS, ACL, HSRP, VPN, and MPLS;

• Knowledge about network security, network security equipment, network security policies, network security inspection, network security audit, and security event handling;

• Master network security technologies: including port, service vulnerability scan, program Vulnerability Analysis Detection, intrusion and attack analysis tracking, site penetration, and virus and Trojan prevention; understand the configuration and usage of mainstream network security products (such as FW, IDs, region, and audit;

• Familiar with network maintenance command methods, with fault detection and troubleshooting capabilities. Major models of switches, routers, firewalls, and other devices will be configured. At the same time, you will also learn about mainstream network products, such as Cisco, Huawei, and H3C.