Customer pain points Desktop trends Design tenants Technology
enablers Defining strategy Desktop as a Service Agenda
Slide 4
What do customers want from a desktop? Easy to manage Easy to
deploy Secure Stable Flexible Agile Easy to upgrade The perfect
world
Slide 5
What do customers actually see: Application compatibility Costs
Security Repeated large scale refresh projects Giving a result with
a relatively short lifespan The real world
Slide 6
The balancing act
Slide 7
Application Distribution Managing CDs and media, application
packages, and installing to unique configurations is expensive and
difficult Data and Configuration User data is trapped on a
particular machine, as is user configuration - in the event of a
hardware failure, both can be lost; workarounds are expensive and
hard to implement Application Portfolio Management Network support
and managed services Ensuring valid, licensed access to a local
application implements custom, potentially risk-prone schemes The
end result Business Agility Changes to any aspect of the technology
infrastructure is fraught with risk and fear, with thousands of
interacting pieces
Slide 8
Looking at desktop trends
Slide 9
DaaS is not just VDI VDI is not DaaS Use appropriate methods of
isolation, virtualisation, delivery and management to meet the
requirements Premise A user should receive the right desktop and
associated applications, at the right time on the right device. The
desktop should not be associated with the device the device can be
thought of as a portal which surfaces the users applications, data,
user state and authorisation and access Premise of Desktop as a
Service
Slide 10
Goal Enable flexible and policy driven combination of delivery
channel, operating system and applications as needed for the given
user Isolate users, applications and delivery channels into
separately managed entities Establish the virtual desktop as a
concept that spans all possible delivery channels Applications and
data are centrally managed Deployment of application and data is
centrally and consistently managed regardless of delivery channel
Applications and data are treated as cached entities and
synchronized with an appstore and user state store respectively The
OS is cached and synchronized with an appstore Hardware or other
failure is not a critical event for users Enable reliable
maintenance of applications and OS 11/11/200910
Slide 11
A User-Centric World User Applications Policies Delivery
Channels
Slide 12
The Vision: A Better Model 11/11/200912
Slide 13
What is a virtual desktop? General user settings Roaming
profiles, folder redirection Application specific user settings
User State Virtualisation Remote Processes Web Access to remote
processes Virtual Presentation APP-V based streaming MED-V based
legacy environment support (XP).NET application (xcopy-based
deployment) Virtual Application(s) Physical deployment via
boot-from-vhd (Windows 7+) Virtual deployment to Hyper-V or
equivalent hypervisor technology Virtual OS 11/11/200913
Slide 14
Evolution of desktop virtualisation 11/11/200914 Hardware OS
User Settings Applications User Data Windows XP / Vista Hardware OS
User Settings Applications User Data Windows Vista / 7 + App-V
(Today) Hardware OS User Settings Applications User Data Windows
Next + Native VHD (2012+) Evolutionary adoption of desktop
virtualization
Slide 15
Gartner say there are 10 client computing architectural options
Local OS vs Streamed OS vs Hosted OS Distributed (local)
application vs Hosted application vs Streamed application What are
the available options?
Slide 16
The Evolving Desktop
Slide 17
Hardware Operating System Data, User settings Applications
Whats Changing Breaking ties using technologies like virtualization
to increase agility The evolving desktop stack Issues IT Faces PC
components bound together, difficult to replace hardware,
software
Slide 18
The traditional approach: Locally Installed OS hosted locally
on desktop, tied to hardware Deployed using OS deployment processes
The other traditional approach: Terminal Services / Citrix OS
hosted on server Single OS hosting multiple user sessions Options
for the Desktop OS (1)
Slide 19
Server Hosted Virtualization: Virtualized full desktop OS
hosted on a server virtualization platform such as Hyper-V
Presented by server to a client device (can be thick or thin
client) Locally Hosted Virtualization: Virtualized full desktop OS
hosted locally on the machine Delivered through MED-V, aimed at App
Compat Options for the Desktop OS (2)
Slide 20
The traditional approach: distributed applications: Delivered
via software delivery toolset/installed manually Installed on local
host machine, tied to that OS The other traditional approach:
terminal services/citrix: Server hosted applications presented to
user using Citrix / RDS Options for the app stack (1)
Slide 21
Application Virtualization: App-to-App Isolation technology,
runs each application in separate bubble Still executes locally on
host machine Can be streamed to machine for instant on capability
Not suitable for all applications Distributed or streamed to device
Options for the app stack (2)
Slide 22
Options for user data/settings (1) The traditional approach:
Locally hosted Hosted locally on the OS User profile different on
each machine user logs in on User data different on each machine
user logs in on Home drives used for shared / network data
Slide 23
Options for user data/settings (1) Decoupling user data &
settings from PC Folder Redirection + offline files Greatly
improved since the XP days Can redirect all profile folders (except
AppData\Local) Roaming User Profiles Contains mainly NTUSER.DAT
Roams user and application settings
Slide 24
Management Platforms
Slide 25
A commonly talked about architecture is VDI Utilises a
combination of: Server Hosted Virtualization Presentation
Virtualization Application Virtualization Generally only suitable
for specific scenarios Virtual Desktop Infrastructure
Slide 26
Developing your strategy
Slide 27
Rationalise your environment Well managed and implemented AD,
GPO, software distribution, client deployment technologies,
application portfolio, asset management, etc This gives you the
basis for a well managed, optimised desktop Define user scenarios
Map the available strategies Define user / site profiles Match
technologies with user needs Develop a DaaS Strategy
Slide 28
End User Computing Scenarios Mobile Bitlocker Drive Encryption
Application Virtualization Folder Redirection Replaceable PC
flexibility, easy to migrate users Office Application
Virtualization Folder Redirection Terminal Services (LOB
Application) Hot-desking flexibly, compliance, free seating Task
Terminal Services (Desktop) Extending PC life security, low cost,
carbonneutral Anywhere on non company PC Windows Vista Enterprise
Centralized Desktop Windows Server 2008 Terminal Services Gateway
Working from Anywhere security, emergency access Contract/ Offshore
Windows Vista Enterprise Centralized Desktop Hosted Image security,
right apps and data
Slide 29
10 Client Computing Architectures Distributed Applications
Streamed Applications Centralised Applications Local Desktop OS
Mainstream viable now Mainstream viable 2 to 5 years Mainstream
viable now Streamed Desktop OS Niche viable in 2 to 5 years Not
recommended Niche viable in 2 to 5 years Hosted Desktop OS
Mainstream viable in 0 to 2 years Mainstream viable 2 to 5 years No
Desktop OSMainstream viable now * Source Gartner Feb 2010
Slide 30
Which Architecture to Choose? What are your requirements? There
is no single, one size fits all solution Your desktop strategy
depends on your user requirements; hence Desktop as a Service
Slide 31
Selecting the Architecture Client / HW Driven Approach
Application Driven Approach Basic Environment
ActiveDirectoryDeployedActiveDirectoryDeployed Group Policy Per
Role Configured Group Policy Per Role Configured 80% Desktops
>2GB Ram 80% Desktops >2GB Ram 80% Desktops > 25GB Free
Space 80% Desktops > 25GB Free Space Regulatory /
SecurityCompliance SecurityCompliance Network > 10Mb/s to the
desktop Network > 10Mb/s to the desktop The problem with this
approach is that there is no recognition of the applications, or
users needs and requirements Contract/ Offshore Task Mobile Office
Anywhere non company PC Environment Building Blocks (Profile / Role
/ Security / Data Management) GroupPolicyGroupPolicyCorporate Base
Image Corporate
SecurityPolicySecurityPolicyDataSyncronizationDataSyncronization
StartStart SpecialPeripheralsSpecialPeripherals Volume Local
Printing Printing
RequiresMobilityRequiresMobilityRequiresOfflineRequiresOfflineRequiresRoamingRequiresRoaming
Applications Require Special or Full HW Applications Require
Special or Full HW Administrator Access needed Administrator
LocalHostingNeededLocalHostingNeeded SmartClientSmartClient
SmartClientSmartClient Mobile Smart Client Mobile
SmartClientSmartClient VDIVDI Local Hosted VDI
VDIRemoteDesktopServicesRemoteDesktopServices YesNo Can the
applications be delivered via Remote Desktop Services Can the
applications be delivered via Remote Desktop Services Application
Delivery and Requirements App Public Cloud App i.e. Online CRM App
Private Cloud RemoteApp Remote i.e. Remote Business App App
Federated CloudRemote CloudRemote i.e. Remote Vendor App App
Private Cloud VirtualizedApp Virtualized i.e. Office App Centrally
Controlled Locally Deployed App Centrally Controlled Locally
Deployed i.e. Unified Comm. App Legacy or EmulationApp Emulation
i.e. 3270 App
Slide 32
Deploy your architecture Rich Client TS Remote Client
Virtualized Applications VDI or Blade PC Contract/ Offshore Task
Mobile Office Anywhere -on non company PC
Slide 33
Applying the different desktop virtualization technologies
effectively Managed Desktops Managing Unmanaged Desktops User State
Virtualization Microsoft Application Virtualization Personalized
Remote Desktops (VDI) (VDI) Shared Remote Desktops (RDS) (RDS)
Slide 34
One size does not fit all Just because its feasible, doesnt
mean its necessarily practical Different architectures can
introduce additional complexity and management layers Regardless of
strategy, rationalise the environment Clean core image Implement
best practice AD Define role based GPOs Understand your network
Implement OS build and software distribution technology Understand
your application portfolio Implement relevant desktop
virtualisation technologies to isolate layers of the stack Map out
desktop computing requirements Map requirements to available
strategies In Summary
Slide 35
Gartner: TCO of Traditional Software Distribution vs.
Application Virtualization, Michael A. Silver, Terrence Cosgrove,
Mark A. Margevicius, Brian Gammage. Publication Date: 16 April 2008
ID Number: G00155897 Gartner, Total Cost of Ownership Comparison of
PCs With Hosted Virtual Desktops, Mark A. Margevicius, Michael A.
Silver, Federica Troni, 4 August 2008 ID Number: G00155498 Gartner,
Desktop Total Cost of Ownership: 2008 Update, Publication Date: 24
January 2008 ID Number: G00153705 Gartner PC Configuration Magic
Quadrant Dec 2008 Gartner, The TCO of Employee-Owned Notebooks
Running a Corporate Virtual Machine, Brian Gammage, Publication
Date: 5 May 2008 ID Number: G00156851 Gartner: How to Reduce Your
PC TCO 30% in 2011 , Federica Troni, Brian Gammage, Michael A.
Silver, Publication Date: 20 March 2009 ID Number: G00166195
Gartner: Organizations That Unlock PCs Unnecessarily Will Face High
Costs, Michael A. Silver, Ronni J. Colville, Publication Date: 19
December 2008 ID Number: G00161951 Gartner: Hosted Virtual-Desktop
Deployments Are Set to Accelerate Gartner, Brian Gammage, Mark A.
Margevicius, 28 July 2008, ID Number: G00159683 Gartner: Choosing
From 10 Client Computing Architectural Options, Brian Gammage, Mark
A. Margevicius. 10 December 2007, Publication Date: 27 February
2009 ID Number: G00164331 Gartner Hype Cycle for PC Technologies
2008, Publication Date: 1 July 2008, ID Number G00158516 Gartner -
Dataquest, Dataquest Insight: Growth in Thin-Client Terminal
Markets Points to a Fundamental Shift in Computing Architecture, 2
October 2008 ID Number: G00160724 Recommended References
