Architecting Cloud SaaS Software

Chapter 3

How Do Hypervisors Work? How Does IaaS Function?

3.1  Introduction

3.2  Hardware Virtualization

3.3  Auto-Provisioning

3.4  Data Centre Rack Systems

3.5  Scaling through Software Architecture or Hardware

3.6  Motivation or Need for Scalable Architecture

3.7  Scalable Architecture (of Software)

3.8  Concept of Load Balancer

3.9  Auto-Scaling

3.10  Summary of Capabilities of Hypervisors

3.11  A Simple Model of Infrastructure as a Service (IaaS)

3.12   Example Case Situations

3.13  Summary

3.1  Introduction

It is essential to understand infrastructure as a service (IaaS) as a pre-requisite to understanding the remaining concepts in this book. This introductory chapter is oriented to give a conceptual view of how hypervisors work and ...