Virtual Desktop Infrastructure (VDI)Centralise the Desktop

Cam MerrettDemonstrator

Virtual Desktop Infrastructure

VirtualisationConnection BrokersPC/Thin Client/Lockdown PCRemote office optionsSecurity ConsiderationsTCO Savings

What is VDI?

The Physical World

Data security andcompliance are at risk.

One-off fixes are costly.Desktop refresh is

complicated and slow.

Applications conflict andimpact performance.

The Virtual World

Centrally control,track and secure data.

Centrally fix and deliver patchesglobally at a lower cost.

Rapidly update PCsor operating systems.

Isolate applications to improve performance and speed.

Virtualisation Layer

Hypervisor- Example • Runs directly on hardware• Manages resource

allocations• Strong fault and security

isolation• Encapsulation• Highly scalable architecture

• What’s available• vSphere• Microsoft Hyper V• Xen Server

What is VDI?

Core appliance at head office

Edge appliance at remote office

Wide AreaNetwork

RDP

ICA

PC-IP

Remote office devices

Connection brokers

Live Demo

VMware VDI Infrastructure Overview

VMware ViewManages connection from client to hosted desktop.

Active DirectoryUser authentication

Internet Access

DMZVMware vCenter

View manages the V4 platform

ClientsVMware vSphere Platform Hosted virtual desktops

Citrix Infrastructure Overview

DESKTOPVIRTUALISATION

PRESENTATIONVIRTUALISATION

Microsoft Virtualisation Solutions

APPLICATION VIRTUALISATION

SERVERVIRTUALISATION

MANAGEMENT

VDI User Experience

Network Performance

Collaboration

WAN Optimization

3D Applications

Connectivity

Multimedia

VDI Connection BrokerGenerally a Windows Server VM(s)

Web Server component

Datastore containing VDI pool information

Authenticates against Active Directory

Communicates with VM Management Services

Passes Connection details back to User

Benefits

Desktop costs Purchase price £399 Maintenance £140 Half day to install £105

◦ £35 per hour Admin – 15 hours £525 Power usage £240 Total £1,409 Per annum

£352.25

VDI Costs Thin client £240 Maintenance £0 One hour to install £35

◦ £35 per hour Admin £0 Power usage £20 Back Office £265,000 £530 Total £825 Per annum £206.25

Cost per user model (500 users)

40.3% saving – payback 16 months

Real-World Financial Examples

What made VDI produce such high savings

Storage was the most expensive part of VDI and priced the solution higher thanPC’s. Thin provisioning from Citrix, VMware or Netapp has cut storage costs by 80%

Additional Incentives/BenefitsGreen Computing Initiative

Needs of a mobilised workforce

HA/DR for Desktop estate

Hardware Independence

Smooth the transition to Windows 7

Power Savings with Client Consolidation

Client Consolidation uses much less power than traditional desktop deployments

◦e.g. Assume 200 users Traditional desktop power consumption:

◦200 users X avg 300 watts per PC = 60,000 watts Client Consolidation power consumption:

◦3 x3850 = 6,000 watts + DS4700 = 1,000 watts + 200 Thin Clients x 5 watts = 7,000 + 1,000 = 8,000 watts

Cost savings is 260 watts per desktop

◦Estimated savings of £80 per PC per year! ◦ (assumes 10 pence per KW hour price for electricity).

Security Considerations

Secure Client device – End Point security

Connection to data centre - SSL VPN / Firewall

Secure virtual desktop – Hypervisor AV

No real physical savings for laptop users - YetLaptops can be replicated to backup virtual machineLaptop sometimes not needed (e.g. office to office)User can work from any locationThe Future :

◦Client Hypervisor with Secure Partition◦Online and Offline Access◦Bare metal Performance◦Synchronization

Laptops

VDI and Remote Office Connectivity & Performance

Business Result:- No IT staff at remote locations- High speed access- Data is protected- “single instance of data”- Less hardware, licenses, storage, tape- None or less servers for branch office services- Data is safe!!

SAN

LANData Centre

WAN

Wide AreaNetwork

Core

Edge

Edge

Very first phase of deciding on VDI

Discovery Tool Kit

Collect detailed information on current estateOS versions and patch levels, CPU make, model, speed, Physical memory sizeAge of deviceTotal number of displays and maximum resolutionTotal number of local disks, total capacity of storage available, total amount of storage utilizedLocal printersUSB devices and peripherals (connected at scan)Applications deployed• The installed applications discovered on the end point, Application usage• The average and maximum memory used by each discovered application• The peak and average CPU usage of each discovered applicationLocal storage usage – the amount of disk space broken down by application

VDI Solution Stack Summary

Discovery Centrix

Connection Brokers

Xen Desktop VMware View

User profile management Appsense

Thin Clients Wyse

Thin Clients Wyse

Next steps

Copy of these slidesWhite paper on consolidation ratiosNo cost trial loginDiscovery tool to assess current estateBusiness caseProof of Concept optionsHow to approach VDI document

User device

Connection

Bandwidth

Virtualisation

Hardware