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Title: Virtual Desktop Infrastructure (VDI), Date: January 2011, Author: James W. De Rienzo, CISSP
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Application & Desktop Delivery Overview
1. Secure Access2. Web Application Acceleration3. Connection Broker4. App Streaming & Virtualization5. OS Provisioning6. Virtual Desktop Infrastructure (VDI)7. VDI with GPU Acceleration8. Remote Desktop Services (RDS)9. Application Virtualization
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Virtual Desktop Infrastructure -Secure Access
• SECURE ACCESS (SSL VPN)–Secure Remote Access Providers– Citrix Netscaler– Cisco ASA 5200 Series–Microsoft Forefront Unified Access Gateway
2010 with DirectAccess for Windows 7 & Windows Server 2008 R2 SP1
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Virtual Desktop Infrastructure - Web Application Acceleration
• WEB APPLICATION ACCELERATION–Web Application Acceleration Providers• Citrix Netscaler Hardware Appliance • Cisco Unified Computer Services (UCS)• F5 BigIP
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Virtual Desktop Infrastructure - Connection Broker
• CONNECTION BROKER– Dedicated Desktop– Pooled Desktop– Connection Broker Providers• Citrix with XenDesktop 5• Microsoft with Remote Desktop Services (RDS)• VMware with View 4.5
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Virtual Desktop Infrastructure - Application Streaming & Virtualization
• APPLICATION STREAMING & VIRTUALIZATION – Install application on server; execute on local machine. • Advantages: installation, upgrade, roll-back,
delivery speed, ease of application support (management).
– Application Virtualization Providers:• Altiris/Symantec Workspace Virtualization • Citrix Application Streaming• Microsoft App-V• VMware ThinApp
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Virtual Desktop Infrastructure -OS Provisioning
• OS PROVISIONING– Single image on multiple workstations– Advantages: upgrade or roll-back an OS quickly.
When virtual desktops use OS provisioning, (valuable) storage is saved
– OS Provisioning Providers:• Citrix Provisioning Server, part of the XenDesktop
and XenApp family, DoubleTake Flex, Wanova Mirage and the VMware View Composer
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Virtual Desktop Infrastructure - Server-Hosted Virtual Desktop (VDI)
• SERVER-HOSTED VIRTUAL DESKTOP (VDI) – Two kinds of VDI: • server-hosted desktop
– With server-hosted, desktops no longer bound to a location. Client display is delivered via Microsoft RDP, Citrix ICA/HDX, Teradici/VMware ―PC-over-IP
• client-hosted desktop
– Server-Hosted VDI Providers:• Microsoft, Citrix, Kaviza, Quest, Oracle/SUN and
VMware
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Virtual Desktop Infrastructure –Server-Hosted VDI GPU Acceleration
• SERVER-HOSTED VIRTUAL DESKTOP WITH GPU ACCELERATION– Rich Media Experience– VDI with GPU Acceleration Providers:• Citrix HDX 3DPro• Microsoft RemoteFX• Teradici• HP RGS
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• REMOTE DESKTOP SERVICES (RDS)(Also known as Shared Remote Desktop)
– Every user has unique terminal server session that runs in the data center
– Programs execute centrally on terminal server versus locally on desktop
– desktop or application is location independent– Low TCO– Remote Desktop Services (RDP) Providers:
• Microsoft• Citrix• Quest
Virtual Desktop Infrastructure – RDS (Terminal Server)
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– CLIENT-SIDE DESKTOP VIRTUALIZATION (VDI). (Also known as Client Hosted Virtual Desktop)
• virtual machines run locally on the client device• Advantages:
– hypervisor ensures that each virtual machine is hardware-independent
– simultaneously use a number of virtual machines at the same workstation
• Two types of hypervisors:– bare-metal client - Citrix XenClient bare-metal hypervisor– client-hosted hypervisor - Microsoft Virtual PC and MED-V, VMware
ACE and Fusion, VMware View Client with Local Mode and Sun VirtualBox
Virtual Desktop Infrastructure – Client-Side Desktop Virtualization (VDI)
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• Client Management Services – Features:• OS deployment• Patch management• Application and client deployment• Asset management• Service desk integration• Remote control
– Client Management Providers: Altiris Deployment Solution, HP Configuration Manager, IBM/BigFix, Intel LANdesk Client Management, and Microsoft System Center Configuration Manager (SCCM)
Virtual Desktop Infrastructure – Client Management Services
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– Transforms apps into centrally-managed virtual services that are never conflict with other apps.
– Streams applications on-demand to any device.– All applications are instantly available on any
licensed device depending on user rights– Standalone mode provides app caching on the local
client for offline usage– App usage & license metering are managed centrally– Patch or upgrade once to the server– Fully integrates with SCCM
Benefits of Application Virtualization: Microsoft App-V
Diagram: MS App-V Application Virtualization
Cisco’s Unified Computing System (UCS)Benefits
– Higher Availability– Less Infrastructure–Unified LAN/SAN Fabric based on FCoE 10GigE– Less Management– Faster Application Deployment– Lower Operating Expenses– Repurpose Physical & Virtual Servers without
Service Disruption– Single Integrated System