Storage Basics

1. The server ： Tower servers ; Rack servers ; Blade servers

 

Tower servers ： Generic category server , Appearance and ordinary desktop PC almost .

Rack servers ： The appearance is designed by unified standards , Use with cabinet , Meet the requirements of enterprise server intensive deployment .

Blade servers ： Insert multiple card server units into the standard height frame , It is a low-cost server platform with high availability density .

features	Tower	Rack	Blade type
Use scenarios	It is mostly used for common services , Wide application , It can be suitable for speed applications and storage applications , High efficiency	A large enterprise , Put multiple sets together , Get mass storage and high performance	Large data centers or large-scale computing
advantage
shortcoming	Larger in volume , Take up a lot of space , Inconvenient management	Limited internal space , Scalability and heat dissipation are limited , The performance of single machine system is relatively limited	Heat dissipation

Storage resources

Compact disc ： Support long-term data storage , Support offline storage of massive data

Hard disk ： Aluminum sheet or glass sheet is covered with magnetic material

Magnetic tape ： Banded material containing magnetosphere

Tape library ： Tape based backup system

disk array ： Multiple disks are combined into a large capacity disk group

I/O Path access ： The channel through which instructions and data are transmitted in the storage system