Master Server Basics: Learn Tech Effectively and Understand Server Hardware

How to Learn a Technology Effectively?

To master any subject you need to see, hear, write, think actively, communicate frequently, and even try teaching others.

Server

2.1 Basic Responsibilities of Operations

Data must not be lost

Servers must run 24/7

Improve user experience

Servers require higher stability than ordinary PCs. Operations principles: simple, easy‑to‑use, efficient .

2.2 Main Battlefield of Work

Servers used for websites are more stable and reliable than desktops or laptops.

Servers are devices that provide computing services. They must handle service requests reliably, so they need strong processing power, stability, reliability, security, scalability, and manageability.

2.3 Server Classification by Form

2.3.1 Rack Servers

Rack servers look like drawers and come in sizes such as 1U (1.75 in), 2U, 4U. They are installed in standard 19‑inch racks and are usually functional servers.

2.3.2 Blade Servers

Blade servers (often called blade‑type servers) consist of multiple card‑like units inserted into a standard rack chassis, providing high availability and density. Each blade is essentially a motherboard that can boot its own OS and can be clustered together.

2.3.3 Tower Servers

Tower servers resemble upright PCs but have larger cases and more expansion slots, allowing for redundant power and storage. They are less suitable for large‑scale deployments due to size.

Computer and Server Main Components

3.1 Chassis

3.2 Power Supply

Function: Provide reliable power to the computer. A good power supply is like the heart of a computer; poor quality can damage components and emit harmful electromagnetic radiation. Servers typically use dual redundant power supplies.

Servers generally provide dual redundant power supplies and operate 24/7.

3.3 Motherboard

The motherboard and CPU are the most critical components; all expansion cards rely on the motherboard, and its quality directly impacts system performance.

Right middle: Processor Right bottom: Memory module Left middle: Battery Left bottom: Hard‑drive connector

3.4 CPU (Central Processing Unit)

Function: Performs calculations and controls the computer, acting as its brain. It determines the speed and efficiency of the system.

3.5 CPU Fan

3.6 Chipset

The chipset manages CPU, memory, bus extensions, and peripheral support; it determines the motherboard’s functionality.

3.7 BIOS Chip

The BIOS (CMOS) performs power‑on self‑test, configures hardware, and launches the operating system; it stores fundamental system information.

3.8 Expansion Slots

Includes memory slots, PCI/ISA slots, AGP, PCI‑E, etc., for adding cards and peripherals.

3.9 Hard Disk

Function: Large‑capacity storage for data, audio, video, etc. Performance of hard disks is crucial for server speed.

Green Disk

Advantages: Quiet, low cost Disadvantages: Low performance, high latency, short lifespan

Black Disk

Advantages: High performance, large cache, fast speed Use cases: Enterprise, high‑performance computing, multimedia editing, high‑end gaming

Blue Disk

Advantages: Good performance, low price, high cost‑performance Disadvantages: Slightly louder than green disks, slightly lower performance than black disks

Red Disk

Advantages: Low power, low noise, suitable for continuous operation Use cases: Web servers

Laptop Hard Disk

Common Disk Types and Interfaces

3.10 Memory Module

Function: Temporary storage for data transfer; its capacity and speed affect overall system performance together with CPU and hard disk.

Summary: Bridges speed gap between CPU and hard disk Provides temporary storage used only while powered Data disappears after power loss

3.11 Graphics Card

Function: Fast processing of image data; essential for 3D games and high‑performance graphics.

3.12 Optical Drive

Function: Play music, view media, install software, run game discs. Modern servers often use network or USB installations, so many computers no longer include optical drives.