Bài giảng Mạng máy tính nâng cao - Chương 5: Virtualization - Lê Ngọc Sơn

VIRTUALIZATION

Lê Ngọc Sơn - lnson@fit.hcmus.edu.vn

What is Virtualization ?

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Starting Point: A Physical Machine

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What is a Virtual Machine ?

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VM Isolation

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VM Encapsulation

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VM Compatibility

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Virtualization Comes in many forms

Virtual

Memory

Each application sees its own logical

memory, independent of physical memory

Each application sees its own logical

network, independent of physical network

Virtual

Networks

Virtual

Servers

Each application sees its own logical

server, independent of physical servers

Virtual

Storage

Each application sees its own logical

storage, independent of physical storage

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Memory Virtualization

Virtual

Memory

Each application sees its own logical

memory, independent of physical memory

Physical memory

App

App

App

Benefits of Virtual Memory

Swap space

•Remove physical-memory limits

•Run multiple applications at once

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Storage Virtualization