virtualization landscape

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Virtualization Landscape Jose Nunez, CISSP, CEH, TOGAF-EA 8

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overview of the virtualization landscape

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Page 1: Virtualization Landscape

Virtualization LandscapeVirtualization Landscape

Jose Nunez, CISSP, CEH, TOGAF-EA 8Jose Nunez, CISSP, CEH, TOGAF-EA 8

Page 2: Virtualization Landscape

2© 2007 Citrix Systems, Inc. — All rights reserved

Agenda

Introduction: Virtualization Technologies

Virtualization Use-Cases

Conclusions

Page 3: Virtualization Landscape

3© 2007 Citrix Systems, Inc. — All rights reserved

The players

Page 4: Virtualization Landscape

4© 2007 Citrix Systems, Inc. — All rights reserved

Why Virtualize Servers?

• IT flexibility/agility• Predictable scaling to dynamically respond to business needs

• Key part of disaster recovery strategy

• Server or data center consolidation• Higher utilization leads to greater consolidation

• Promotes greater centralization and security

• "Green Computing"• Consume less power, cooling, and real estate

• Support DevTest environments• Works for both IT shops and development houses

• Desktop virtualization

Page 5: Virtualization Landscape

5© 2007 Citrix Systems, Inc. — All rights reserved

Platform Architecture

Xen ControlInterface

Xen ControlInterface Virtualized HardwareVirtualized Hardware

HardwareHardware

VT/AMD-V

Drivers

StorageStorage

OpenSource

ControlInterface

• Hypervisor runs on bare metal• Extremely thin; only 50K lines of code

• Processor and memory access through hypervisor

• Network and storage • Accessed through management domain

• Uses standard Linux device drivers

Page 6: Virtualization Landscape

6© 2007 Citrix Systems, Inc. — All rights reserved

Emulation Virtualization

UserAppsUserApps

UserAppsUserApps

HardwareHardware

HALT SAFE HALT

Legacy Hypervisor

Slow, expensive software emulation

layer

Page 7: Virtualization Landscape

7© 2007 Citrix Systems, Inc. — All rights reserved

Next-Generation Virtualization

UserAppsUserApps

UserAppsUserApps

HardwareHardware

HALTHYPERCALL

HALT

Xen

VT/AMD-V

Paravirtualized guests makes high-speed calls directly to the

hypervisor

Other guests benefit from hardware-accelerated call

translation

Paravirtualization• Kernel and I/O paths know

they are being virtualized

• Cooperation provides best performance

Hardware-assisted• Hardware-assist allows

high performance without emulation

Page 8: Virtualization Landscape

8© 2007 Citrix Systems, Inc. — All rights reserved

Agenda

Virtualization Use Cases

Introduction: Virtualization Technologies

Conclusions

Page 9: Virtualization Landscape

9© 2007 Citrix Systems, Inc. — All rights reserved

Server Consolidation

Server sprawl due to silos is reduced

SAP

SAP

SAP

SAP

CRM

CRM

BI

BI

New applications introduced without

mandating additional hardware

Virtual Servers

Page 10: Virtualization Landscape

10© 2007 Citrix Systems, Inc. — All rights reserved

Fast, Effortless Provisioning

• Traditional "virtual" provisioning• Create virtual machine

• Duplicate virtual disk/virtual machine to create new virtual machines

• Improves provisioning with templates• Creating a virtual machine from a template is single-step

• New virtual machines provisioned in seconds

Provision

A

Page 11: Virtualization Landscape

11© 2007 Citrix Systems, Inc. — All rights reserved

Simplify DevTest

• Two aspects to DevTest• IT infrastructure

• Application development

• Improve IT DevTest flexibility• Smaller organizations do not have full DevTest environments

• Replicate production environment with fraction of the resources

• Qualify patches and application changes

• Push images rapidly from DevTest (virtual) to production (physical)

• Enhance application development on XenApp• Create virtual servers for application development silos

• Especially complementary for off-shore development

Page 12: Virtualization Landscape

12© 2007 Citrix Systems, Inc. — All rights reserved

Shared Storage Repository

Support Zero-Downtime Hardware Maintenance

Page 13: Virtualization Landscape

13© 2007 Citrix Systems, Inc. — All rights reserved

Export Guest VMs Import Guest VMs

Servers @ Site 1 Servers@ Site 2

Add DR to Virtualized Server Farms

Guests can be exported from one environment and imported into a DR environmentGuests can be exported from one environment and imported into a DR environment

Page 14: Virtualization Landscape

14© 2007 Citrix Systems, Inc. — All rights reserved

Desktop virtualizationServer Virtualization

Desktop Virtualization

($MILLIONS)

$2,000

$1,000

Page 15: Virtualization Landscape

15© 2007 Citrix Systems, Inc. — All rights reserved

Globalization Cost of desktop maintenance and

support

Regulatory compliance and

data security

User flexibility and business

continuity

Page 16: Virtualization Landscape

16© 2007 Citrix Systems, Inc. — All rights reserved

Virtual Delivery Protocol

Desktop Appliance

Virtual Desktop Infrastructure

VM

VM Infrastructure

VM VM VM

A step in the right direction

Page 17: Virtualization Landscape

17© 2007 Citrix Systems, Inc. — All rights reserved

Task WorkersStandardized Server-Based

Desktops

Knowledge WorkersPersonalized Windows Desktops

250 users 25 users

30%60%

Page 18: Virtualization Landscape

18© 2007 Citrix Systems, Inc. — All rights reserved

Patch

High Risk & High Cost

Desktops & Appson every server

Storage

Desktop image sprawl

Page 19: Virtualization Landscape

19© 2007 Citrix Systems, Inc. — All rights reserved

Separate Desktops and Apps

Best App Compatibility, Low TCOand Best Performance

Single desktop image

90% less storage

Page 20: Virtualization Landscape

20© 2007 Citrix Systems, Inc. — All rights reserved

High Speed Virtual Delivery (ICA)

VirtualizationInfrastructure

Provision virtual desktops from a

single image

Complete VDI System

Desktop Appliance

Page 21: Virtualization Landscape

21© 2007 Citrix Systems, Inc. — All rights reserved

Consider desktop virtualization when:

• Doing desktop rollouts

• Desktop security for compliance and IP protection

• Business continuity

• Desktop refresh

Page 22: Virtualization Landscape

22© 2007 Citrix Systems, Inc. — All rights reserved

“We’re excited to expand our work around desktop and server virtualization technologies”

Page 23: Virtualization Landscape

23© 2007 Citrix Systems, Inc. — All rights reserved

Desktop ApplianceA new class of devices built for Virtual Desktops

Page 24: Virtualization Landscape

24© 2007 Citrix Systems, Inc. — All rights reserved

Agenda

Conclusions

Virtualization Use Cases

Introduction: Virtualization Technologies

Page 25: Virtualization Landscape

25© 2007 Citrix Systems, Inc. — All rights reserved

Key Takeaways

• Highly complementary: server virtualization and desktop virtualization• Add resiliency and flexibility IT operations

• Easily support rapid provisioning, high availability, DR, and DevTest

• Obviously, your (virtualization) mileage may vary

• Virtualization is not just for the datacenter anymore• 40% lower cost of desktop maintenance & support

• Reduced risk of data loss

• Deliver desktops quickly a reliably to any location

• Don´t forget app virtualization