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SESSION 110 Wednesday, April 13, 10:15am - 11:15am Track: Desktop Support. VDI: Transform Your Desktop with Virtualization. Session Description


Academic year: 2021

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Wednesday, April 13, 10:15am - 11:15am Track: Desktop Support

VDI: Transform Your Desktop with Virtualization

Mike Voss

Principal Architect, SHI

Mike_Voss@SHI.com Session Description

In this session, Mike Voss, a leading VDI expert, will lead a discussion on the current and future state of virtual desktop infrastructure (VDI), including when to use it and what alternative options might best suit your enterprise. You;ll join him on a deep dive into not only the virtual aspect of VDI but also into the entire physical infrastructure when supporting a Desktop as a Service (DaaS) environment. As a result, you'll gain a better understanding of the key technical requirements that every IT pro should consider before selecting and implementing a VDI solution.

Speaker Background

Mike Voss has fourteen years of experience providing consulting and technical expertise for multiple federal and commercial clients. A senior virtualization architect, he has worked with many of the major platforms and technologies in the data center. Some of his specialties include server and desktop virtualization (VDI), computer storage, and the cloud. As a principal architect at SHI, his role is to provide architectural and solution guidance to SHI accounts across the eastern US, and to evangelize SHI's data center capabilities to partners and strategic customers.


Transform Your Desktop with


Mike Voss Principal Architect SHI


• 10 years at Federal Systems Integrator

• 5 years at Datacenter Solution Providers

• VMware, Citrix, Microsoft background

– VMware Certified Professional (Datacenter and Desktops)

– Citrix Certified Administrator (XenApp and XenDesktop)

– Microsoft Hyper-V MSTS, MCITP-EA

• Consultative Solution Architect



• Desktop Virtualization Overview

• Current State

• Architecture

• Desktop-as-a-Service (DaaS)

• Key Considerations

• Future State

What is Desktop Virtualization?

 OS, apps and personalization are

decoupled from the physical device

 Desktops and applications are centralized in the data center

 Connect to virtual desktop or application from any device at any location


Decoupling OS, Apps and User Data

Hardware Operating System User Data Applications Hardware Operating System Applications User Data

Types of Desktop Virtualization

Network Boot Provisioning Server Apps OS

Virtual Desktop Streaming Apps OS Apps OS Display Data App App App OS Terminal Services Presentation Server

Synchronized Desktop (Offline)

Synchronized Desktop Server Apps OS Apps OS Apps OS Display Data Apps OS Apps OS

Virtual Desktop Infrastructure (VDI)

Apps OS

Server Hypervisor


When to use Desktop Virtualization

What is the business problem we are trying to solve?

• Business Continuity

• Reduce Administrative Overhead

• Enhanced Mobility/Productivity

• Security

• Increased Collaboration


• Business as usual (That’s OK!)

• Migrate legacy applications to the web

• Leverage SaaS and cloud-native applications


Current State

• Leading vendors

approaching feature parity

• Better voice/video

• Better provisioning

• Unified Portal for desktops, applications and cloud resources

• Mobile Device Management and Single-Sign-on

• Hybrid Cloud Strategy

Desktop Virtualization Application Virtualization Mobile Device Management File Sharing Unified Portal

VDI Architecture

Active Directory Management Cluster SAN Storage Connection Brokers Compute Servers Running Virtual Desktops Load Balancers


Desktop-as-a-Service (DaaS)


Bare Metal / Physical Servers / “Cloud Platform”


Automation and Orchestration – Orchestrate Process & Procedures

Management Layer

Desktop-as-a-Service (DaaS)


Request & Approval Multi-Tenancy

---Service Catalog

Run and schedule workflows


End Users IT Admin

Install and Customize Workflows


Non-Technical Success Factors

• Understand Use Cases

• Top-Down Support

• Determine Feasibility

• Pilot

Technical Success Factors

• Assessment

• User Environment Management

• Storage I/O and Latency

• Application Virtualization



873 Candidates chosen to virtualize

9 Hypervisors required (N+1)97:1 consolidation ratioPeak Predicted Demands:

1,351,958 MIPS 1,739 RAM (GB) 9497 IOPS 384 Mbps  Top Apps: Zgaclient.exe Thumbnailgen.exe Rcslauch.exe Acrord.exe Acrobat.exe iexplore.exe i3dvr_remote.exe dfileman.exe sitekiosk.exe photoshop.exe explorer.exe interact.exe outlook.exe rundll32.exe dwm.exe tellernow!.exe msreportbuilder.exe ae.exe appman.exe acrord32.exe fcagte.exe excel.exe billingedge.exe cwintegratedclient.exe ccc.exe 7.17% 3.47% 3.23% 2.91% 1.85% 1.82% 1.74% 1.59% 1.10% 0.94% 0.83% 0.80% 0.55% 0.47% 0.43% 0.38% 0.36% 0.33% 0.31% 0.26%

Top CPU Consumers By Application

Sizing Tips

• Be careful overcommitting CPUs

– CPU utilization might be low, but CPU contention may be high

• Don’t overcommit memory

• Account for CPU and memory needed for the

hypervisor, and any additional VMs (security virtual appliance)

• Size hypervisor clusters to withstand host failures

– Don’t size for 100% utilization


User Environment Management

• Keep it Simple

• Folder Redirection

• GPO Optimization

• Reduce Login Times

• Contextual Awareness

Storage I/O and Latency

SSD 5000 IOPS Notebook with SSD Desktop PC 7200 RPM HDD 75 IOPS Desktop Virtualization



VDI Storage Challenge

Shared Storage

Virtual Desktops

Storage I/O and Latency

• Storage – major source of project risk and failures

• With disk-based storage systems, sizing is complex and expensive

• 10-20 IOPS per user results in a poor experience for the end user

• Common solutions:

– Flash

– Hyperconverged

– Software/Hardware Add-Ons

Application Virtualization

• Should be leveraged where possible to reduce the

number of applications in the base image

• Multiple Techniques

– Server-based computing

– Application packaging

– Application streaming

– Layering


Anti-Virus Optimization

• Needs to be re-thought when moving to a shared resource environment

• Can cripple CPU and storage resources

• At the very least optimize

– Tune scanning policies/schedules to stagger

• Ideally offload to improve performance and density

Introspection Engine AV Hypervisor Virtual Desktop Virtual Desktop Virtual Desktop Security Virtual Appliance

Future State

• Cloud-based control plane for market leaders

• Hybrid cloud strategies with easy portability

• Designed to make it easy to adopt and implement


Citrix Workspace Cloud



Thank you for attending this


Please don’t forget to complete a

session evaluation!


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