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Introduction to Virtualization

Paul A. Strassmann George Mason University October 29, 2008, 7:20 to 10:00 PM

Data Center Transformation

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Scope of Virtualization Services

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Virtualization Evolution

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Business Continuity is the Objective

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How to Understand the Virtualization Development

•  Virtualization is an industry-changing movement that will touches all aspects of IT infrastructure and drive new levels of flexibility and dynamism in IT.

•  Virtualization is addressing the process and operational issues around deploying and managing a large-scale virtual environment.

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Part I

Virtualization Concepts

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The Existing Role of the Operating System

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Virtualization is Based on Insertion of a Hypervisor on Top of Hardware

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Virtualization Allows Transformation of a Server for Multiple Applications

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Capacity Utilization: Stand-Alone vs. Virtualized Servers

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Dedicated Application Virtualized Applications

Hypervisor Installs Immediately – Supports Desktops and Laptops

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Virtual Machines Run on Any Hardware Configuration

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Virtual Machines Can Run on a Shared Infrastructure

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A Single Software Can Span Different Hardware Components

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Virtualization Allows Moving Applications Without Service Interruption

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Advantages of Virtualization

•  Zero downtime maintenance

•  Freedom from vendor-imposed upgrade cycles •  Instant provisioning

•  Pooling hardware resource •  Virtual hardware supports legacy operating systems efficiently

•  Dynamic resource sharing

•  Security and fault isolation •  Business continuity, backups, and automated restoration

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Example of the Impact of Virtualization

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Before After

Labor Costs are 1/3 of the Costs of a Server

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Server Amortization (44%)

Storage & Network (12%)

Administrative (33%)

Cooling & Cost of Space (10%)

Operations Require One Staff per 200-400 Virtual Machines

20 Note: Without virtualization one staff can handle up to 30 servers.

Examples of Productivity Using Virtualization

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Non-Disruptive Automated Patch Management

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Transforming Costs, Efficiency and Availability

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Impact of Virtualization

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Part II

Deploying Virtualization

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From Dedicated Processing to Pooled Processing

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Pooling of Hardware for Shared Capacity Performance

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Logical Resource Pooling and Distributed Resource Scheduling

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Where to Run Your Application?

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Part III - Continuity

Business Continuity

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Challenges of Traditional Disaster Recovery

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Infrastructure Challenges of Traditional Recovery

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Making Better Use of Recovery Infrastructure

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Virtual Site Recovery Management

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Eliminating Downtime for Hardware Maintenance

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Eliminating Downtime for Storage Changes

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Redistribution of Workload to Handle Peak Processing Demands

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Automatic Restart of a Failed Server

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Backup Can Be Performed With Various Backup Products

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How to Run a Virtualized Data Center that is Fault Tolerant

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Extending the Virtual Infrastructure to End-User Clients

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Part IV

Virtual Appliances

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Traditional Approach: A Collection of Hardware and Cables

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Virtualization is Based on Insertion of a Hypervisor on Top of Hardware

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A Virtual Appliance Can Run a Range of Applications

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There is an Extensive Catalogue of Diverse Virtual Appliances

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Future Directions: Virtualized Environment + Tools to Support SOA

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Part V

Virtual Desktop

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Driving Change

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Apply Virtualization to the Desktop

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The Virtual Desktop Runs in a Secure Data Center

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Virtual Desktop Infrastructure: Client Access

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Hospital Case Study: Desktop Replacement & Centralization

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Insurance Case Study: Business Continuity

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Thin-Client Support

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The Uses of Virtual Desktops

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Summary

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•  Virtualization offers major savings in data center operations.

•  Virtualization makes possible significant reductions in the costs of managing data centers, with simplification of systems management tasks.

•  Virtualization offers back-up and increased redundancy for delivery of high performance and high availability services.

•  Virtualization is a step in the direction of “cloud computing”.