TODAY S SESSION Desktop as a Service

Transcription

1 Interoperability

2 TODAY S SESSION Desktop as a Service

3 Desktop as a Service Agenda Customer pain points Desktop trends Design tenants Technology enablers Defining strategy

4 The perfect world What do customers want from a desktop? Easy to manage Easy to deploy Secure Stable Flexible Agile Easy to upgrade

5 The real world What do customers actually see: Application compatibility Costs Security Repeated large scale refresh projects Giving a result with a relatively short lifespan

6 The balancing act

7 The end result Application Distribution Data and Configuration Application Portfolio Management Business Agility Managing CDs and media, application packages, and installing to unique configurations is expensive and difficult 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 Ensuring valid, licensed access to a local application implements custom, potentially risk-prone Network schemes support and managed services Changes to any aspect of the technology infrastructure is fraught with risk and fear, with thousands of interacting pieces

8 Looking at desktop trends

9 Premise of Desktop as a Service 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

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/

11 A User-Centric World Applications User Delivery Channels Policies

12 The Vision: A Better Model 11/11/

13 What is a virtual desktop? User State Virtualisation Virtual Presentation Virtual Application(s) General user settings Roaming profiles, folder redirection Application specific user settings Remote Processes Web Access to remote processes APP-V based streaming MED-V based legacy environment support (XP).NET application (xcopy-based deployment) Virtual OS Physical deployment via boot-from-vhd (Windows 7+) Virtual deployment to Hyper-V or equivalent hypervisor technology 11/11/

14 Evolution of desktop virtualisation Windows XP / Vista Windows Vista / 7 + App-V (Today) Windows Next + Native VHD (2012+) User Data User Settings Applications OS User Data User Settings Applications OS User Data User Settings Applications OS Hardware Hardware Hardware Evolutionary adoption of desktop virtualization 11/11/

15 What are the available options? 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

16 The Evolving Desktop

17 The evolving desktop stack Data, User settings Issues IT Faces PC components bound together, difficult to replace hardware, software Applications Operating System What s Changing Breaking ties using technologies like virtualization to increase agility Hardware

18 Options for the Desktop OS (1) 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

19 Options for the Desktop OS (2) 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

20 Options for the app stack (1) 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

21 Options for the app stack (2) 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

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

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

24 Management Platforms

25 Virtual Desktop Infrastructure A commonly talked about architecture is VDI Utilises a combination of: Server Hosted Virtualization Presentation Virtualization Application Virtualization Generally only suitable for specific scenarios

26 Developing your strategy

27 Develop a DaaS Strategy 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

28 End User Computing Scenarios Mobile Replaceable PC flexibility, easy to migrate users Bitlocker Drive Encryption Application Virtualization Folder Redirection Office Hot-desking flexibly, compliance, free seating Application Virtualization Task Extending PC life security, low cost, carbon neutral Folder Redirection Terminal Services (LOB Application) Terminal Services (Desktop) Contract/ Offshore Hosted Image security, right apps and data Windows Vista Enterprise Centralized Desktop Anywhere on non company PC Working from Anywhere security, emergency access Windows Vista Enterprise Centralized Desktop Windows Server 2008 Terminal Services Gateway

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 Mainstream viable 2 to 5 years No Desktop OS Mainstream viable now * Source Gartner Feb 2010

30 Which Architecture to Choose? There is no single, one size fits all solution Your desktop strategy depends on your user requirements; hence Desktop as a Service What are your requirements?

31 Selecting the Architecture Client / HW Driven Approach Application Driven Approach Start Special Peripherals Smart Client Yes No Active Directory Deployed Group Policy Per Role Configured Basic Environment 80% Desktops >2GB Ram 80% Desktops > 25GB Free Space Regulatory / Security Compliance Network > 10Mb/s to the desktop Volume Local Printing Smart Client Environment Building Blocks (Profile / Role / Security / Data Management) Group Policy Corporate Base Image Security Policy Data Syncronization Requires Mobility Requires Offline Requires Roaming Application Delivery and Requirements Applications Require Special or Full HW Mobile Smart Client Smart Client App Public Cloud App Private Cloud Remote App Federated Cloud Remote App Private Cloud Virtualized App Centrally Controlled Locally Deployed App Legacy or Emulation Can the applications be delivered via Remote Desktop Services Administrator Access needed Local Hosting Needed i.e. Online CRM i.e. Remote Business App i.e. Remote Vendor App i.e. Office i.e. Unified Comm. i.e App Remote Desktop Services VDI Local Hosted VDI The problem with this approach is that there is no recognition of the applications, or users needs and requirements Task Office Mobile Anywhere non company PC Contract/ Offshore

32 Deploy your architecture Mobile Rich Client Contract/ Offshore TS Remote Client Office Virtualized Applications Anywhere -on non company PC Task VDI or Blade PC

33 Applying the different desktop virtualization technologies effectively Managed Desktops Managing Unmanaged Desktops User State Virtualization Microsoft Application Virtualization Shared Remote Desktops (RDS) Personalized Remote Desktops (VDI)

34 In Summary One size does not fit all Just because its feasible, doesn t 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 GPO s 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

35 Recommended References 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: G 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: G Gartner, Desktop Total Cost of Ownership: 2008 Update, Publication Date: 24 January 2008 ID Number: G 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: G Gartner: How to Reduce Your PC TCO 30% in 2011, Federica Troni, Brian Gammage, Michael A. Silver, Publication Date: 20 March 2009 ID Number: G Gartner: Organizations That Unlock PCs Unnecessarily Will Face High Costs, Michael A. Silver, Ronni J. Colville, Publication Date: 19 December 2008 ID Number: G Gartner: Hosted Virtual-Desktop Deployments Are Set to Accelerate Gartner, Brian Gammage, Mark A. Margevicius, 28 July 2008, ID Number: G Gartner: Choosing From 10 Client Computing Architectural Options, Brian Gammage, Mark A. Margevicius. 10 December 2007, Publication Date: 27 February 2009 ID Number: G Gartner Hype Cycle for PC Technologies 2008, Publication Date: 1 July 2008, ID Number G Gartner - Dataquest, Dataquest Insight: Growth in Thin-Client Terminal Markets Points to a Fundamental Shift in Computing Architecture, 2 October 2008 ID Number: G