3.2 Virtualisation.

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Presentation transcript:

3.2 Virtualisation

What is Virtualisation? By virtual, we mean something that’s not real. So it’s simulated, not actual. It’s used to create more flexible ways to use & share hardware and software.

What is Virtualisation? Virtualisation works since hardware & software is rarely used to its 100% maximum capacity. Applications Operating System Hardware So virtualisation uses clever tricks to stretch the same resources to run virtual machines… OS OS virtual machines Hardware

What is Virtualisation?

What is Virtualisation? Many Applications ‘Virtual’ Machines ‘Sharing’ Software Computing Resources Server Storage Memory CPU So virtualization is a clever way to let a business get more from its resources.

What is Virtualisation? Connectivity Methods

What You Need To Know server client storage

What is Virtualisation? Storage Virtual Data Centre Servers Virtual Client

Virtualisation Client Client Virtual Can use cheaper machines ‘Dumb’ clients Storage, memory, CPU Server doing all the work Data Centre Central control Servers Security, upgrades, backups

Virtualisation Server Client Virtual Physical

Virtualisation Server Users get ‘dedicated’ server No performance drop But using ‘virtual’ servers Virtual Less physical servers Better for hosting company Physical

Virtualisation Storage Users get ‘simple’ storage Client eg all files in ‘one’ place But using ‘virtual’ storage Virtual Multiple physical devices Linked as ‘storage network’ Physical Security, upgrades, backups

Benefits & Limitations Virtualisation Benefits & Limitations Data traffic Slow connection speed Uptime & Downtime Security – weak or strong

What You Need To Know cloud hybrid

Transfer via email or ‘stick’ Cloud Bad Old Days Transfer via email or ‘stick’ Home Work

Cloud at Work Home On The Go Work

Cloud at Play Mobile Home

Hybrid Private cloud Public cloud

What You Need To Know