Shulou(Shulou.com)06/03 Report--

What hardware does the computer consist of:

Motherboard, CPU, fan, memory, network card, solid state hard drive (mechanical hard drive), array card, remote management card, power supply.

Server classification: blade, rack, tower.

Hardware introduction:

1. The role of the motherboard:

a. Hosts all the hardware and brings all the hardware in the server together

The function, number of routes, number of cores of 2.CPU:

The function of a.CPU: carry out operation processing and control the instructions issued by the hardware.

Number of b.CPU paths: refers to the number of CPU connected to each other (how many CPU are there)

Number of c.CPU cores: the ability to process data in parallel.

The function of fan: dissipate heat to the hardware.

The role of memory:

Make temporary storage (data is easy to be lost). The memory contains the program, which is the data code written by the developer. The program includes buffer, cache, process and daemon. Buffering: faster data writing (write buffering) caching speeds up the read speed (read caching) process: running programs generate processes. Daemon: an unstoppable program that runs.

The function of the network card: connect the server to the network.

The function of hard disk: to store data permanently.

Conversion unit of hard disk capacity: 1024b=1kb 1024kb=1MB 1024MB=1GB 1024GB=1TB 1024TB=1PB

1024PB=1EB 1024EB=1ZB.

The role of array cards (raid):

a. Integrate all hard drives.

b. Increase the hard disk capacity.

c. Improve the performance of the hard drive.

d. Increase data security.

Array card functions: raid1, raid0, raid5.

Raid1: high security, reduced storage efficiency, waste of space.

Raid0: faster storage efficiency with low security.

Raid5: high security, faster storage efficiency, and wasted disk space.

The function of remote management card: remote control starts when the server is off, and remote network management installs the system.

The role of the power supply: to power all hardware.

However, the power supply must be redundant, equipping the server with multiple power supplies, power supply systems (GPL), and generators.

System introduction:

Structure of the system:

System core, instruction translator, peripheral application.

The evolutionary history of the system: unix was born at Hubert Lab in 1969, but it is not free. Professor Tan Ningbang made minix based on unix in 1984, and Stallman released the GNU project, free software referred to as FSF,GPL Public license Agreement. Then Torvaz was inspired by the combination of the system core and GNU software in 1991 to give birth to Linux.

System developers: Fedora, Redhat, debian, SUSE, ubuntu, centos.

Computer installation system conditions: not less than i5cpu, 8G memory, 500GB hard disk. Install the virtual software VMware, create the virtual environment, download the system image, set up the virtual network, and finally install it. Partition the hard disk / boot (200m) / swap conversion partition (800m) when the storage is greater than or equal to 8G, set up the LINUX network, install the software, set the area time, and complete the installation.

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