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Server-hosted Virtual Desktops Agenda • Project background • Evaluation criteria • Product assessments • Conclusion 1

Project Background 2

Server-hosted Virtual Desktops Project Background • Five month Burton Group project • Goal: identify enterprise-class server-hosted virtual desktop (SHVD) evaluation criteria • Input sources: analysts, clients, and vendors • Outcome - 45 page report detailing SHVD selection criteria - Notes that differentiate “features” from “marketing checkboxes” - Three 25 page product profiles (Citrix, VMware, Quest), more on the way (Microsoft, Oracle) 3

Evaluation Criteria 4

Server-hosted Virtual Desktops • Evaluation Criteria Structure - Selecting a SHVD solution typically entails a long term (3 -5 years or more) commitment in order to realize a true return on investment (ROI) - Features should be assessed by grouping into three buckets: • Required: absolute necessities • Preferred: important features that result in better experience, operational management, and improved TCO • Optional: use-case driven features needed in select deployment scenarios 5

Server-hosted Virtual Desktops • Evaluation Criteria - User experience - Service advertising and connection brokerage - Business continuity - Network - Storage - Back-end virtual infrastructure - Management - Security - Guest OS support - Licensing - Product support - Third-party vendor support 6

Product Assessments 7

Xen. Desktop 4 SP 1 Platinum Scorecard 0% 10% 20% 30% 40% 50% Required Preferred Optional 8 60% 70% 80% 90% 100%

Citrix Xen. Desktop 4 SP 1 Platinum Bottom Line Assessment • Xen. Desktop 4. 0 SP 1 meets all requirements for large-scale enterprise deployments • Suitable for small-scale to large enterprise deployments • Complete core feature set • Leads in security and user experience features 9

Citrix Xen. Desktop 4 SP 1 Platinum Strengths • Complete core feature set • Flexible desktop and application delivery • Supports multiple virtualization platforms • Strong User Experience feature set • Diverse endpoint OS compatibility • Rich supporting ecosystem • Strong WAN performance 10

Citrix Xen. Desktop 4 SP 1 Platinum Weaknesses • No security hardening guidelines • Deployment and management complexity • Management console scalability: 5, 000 desktops • Config file and virtual desktop image integrity checks 11

VMware View 4. 5 Premier scorecard 0% 10% 20% 30% 40% Required Preferred Optional 12 50% 60% 70% 80% 90% 100%

VMware View 4. 5 Premier Bottom Line Assessment • View 4. 5 meets all requirements for large-scale enterprise deployments • Suitable for small-scale to large enterprise deployments • Rich integration with VMware product portfolio 13

VMware View 4. 5 Premier Strengths • Rich integration with VMware v. Sphere infrastructure • Solid core feature base • Centralized management • Best-in-class management scalability: 10, 000 desktops • Simple deployment • Active Directory integration 14

VMware View 4. 5 Premier Weaknesses • No security hardening guidelines • Endpoint security health assessment integration • USB device access restrictions • No user application self-service • PCo. IP immaturity (no integration with Riverbed accelerators, for example) • Low-bandwidth WAN support • Supports only VMware-based back ends • No Xen. App integration 15

Quest v. Workspace 7. 1 Enterprise Edition Scorecard 0% 10% 20% 30% 40% 50% Required Preferred Optional 16 60% 70% 80% 90% 100%

Quest v. Workspace 7. 1 Enterprise Bottom Line Assessment • Not a solution for the large enterprise - No enterprise management integration - No administrative change logging (i. e. , audit trail) - Short support lifecycle • Well suited for small and medium enterprises - Rich Windows integration - Broad endpoint support 17

Quest v. Workspace 7. 1 Enterprise Strengths • Supports multiple virtualization back end platforms • Ease-of-deployment • Strong user experience feature set • Diverse endpoint compatibility 18

Quest v. Workspace 7. 1 Enterprise Weaknesses • No security hardening guidelines • No admin change logging • No published management APIs or SNMP support • Product support limited to 2 years • No third party ISV certification program • No support for disconnected virtual desktops • No support for common smart phones, tablets, and netbooks 19

Microsoft VDI Suite Premium Scorecard 0% 10% 20% 30% 40% 50% Required Preferred Optional 20 60% 70% 80% 90% 100%

Microsoft VDI Suite Premium Bottom Line Assessment • Not a solution for the large enterprise - Limited scalability (designed to scale to hundreds of desktops) - Microsoft recommends its joint solution with Citrix for larger scalability requirements - No concurrent user or named user licensing model • Well suited for small and medium enterprises - Rich Windows integration - Simple deployment and management - Broad endpoint support 21

Microsoft VDI Suite Premium Strengths • Rich Windows platform integration • Management capabilities • Value • Strong supporting vendor ecosystem 22

Microsoft VDI Suite Premium Weaknesses • Scalability - For scale beyond hundreds of desktops, Microsoft recommends its joint solution with Citrix • Required management consoles • Integration with storage array provisioning features • Low-bandwidth/high-latency WAN support • Disconnected virtual desktop support 23

Comparison Citrix Xen. Desktop 4 SP 1 VMware View 4. 5 Quest v. Workspace 7. 1 Microsoft VDI Suite 0% 20% 40% Required Preferred Optional 24 60% 80% 100%

Required Features User Experience Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Ability to connect from mainstream client operating systems Windows XP (Pro, Home) Vista (Home, Home Premium, Business, and Ultimate); Windows 7 (Starter, Home Premium, Professional, and Ultimate – 32 -bit and 64 -bit); Mac OS/X (Tiger 10. 4 and Leopard 10. 5, Snow Leopard 10. 6); Java (Java 2, Standard Edition Version 1. 4. x or 1. 5. x), and other less common client OSs Windows XP (Pro, Home) Vista (Home, Home Premium, Business, and Ultimate); Windows 7 (Starter, Home Premium, Professional, Enterprise, and Ultimate – 32 -bit and 64 -bit). Mac OS X 10. 4. 9 or later (supports RDP 6 only). Microsoft does not offer a RDP client for Linux, but numerous thirdparty alternatives such as rdesktop are available. 25 Windows XP (Pro and Home) and Vista (Home, Home Premium, Business, and Ultimate); Windows 7 (Starter, Home Premium, Professional, Enterprise, and Ultimate [32 -bit and 64 -bit]); Mac OS X 10. 5. 5 or later. Linux: Ubuntu 8. 04, 9. 04, and 9. 10; Debian 4. 5 or later; Fedora 10; and Red Hat Enterprise Linux (RHEL) Desktop 5. Windows XP (Pro Service Pack 1 [SP 1] and higher, and Home SP 2 and higher), Vista (Home, Home Premium, Business, and Ultimate), Windows 7 (Home Premium, Professional, Enterprise, and Ultimate), and Apple Mac OS X (Leopard 10. 5 and higher). Note that the Mac OS X client only supports the Remote Desktop Protocol (RDP).

Required Features User Experience (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Ability to connect from mainstream thin/zero clients Widespread support including 10 Zig, Atrust, Devon IT, HP, IBM, Igel, Dell, Centerm, VXL, and Wyse. See the Citrix Ready Products Guide for a list of supported devices. HDX Plug-n-Play Multi-Monitor Support detects end point monitor changes and updates the virtual desktop configuration to correspond. Dynamically adjusts for changes in endpoint monitor configuration Widespread support for RDP is available from many thinclient vendors including 10 Zig, Devon IT, HP and Wyse. Microsoft does not publish a list of supported devices. 0 Zi. G Technology, Devon IT, HP, IGEL Technology, Thinspace, Thinware, and Wyse Technology. See “Quest v. Workspace —Thin Client support” supported devices. Wyse, HP, Dell, Fujitsu, IGEL, Clear. Cube, and several others. See the VMware Compatibility Guide for all supported devices. Supports changes in resolution, screen orientation and number of physical monitors Provided via PCo. IP’s “Auto Display Scaling” feature. 26

Required Features User Experience (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Offers a universal printer driver Yes Dynamically adjusts for changes in endpoint printer configuration Yes Windows Server 2008 R 2 RDS include Easy Print - an XML Paper Specification (XPS) based “driver-less” print solution for client devices. Easy Print is supported on Windows XP SP 3 and newer platforms. Yes 27 Result of Thin. Print Supported on OEM. Windows clients using RD Easy Print only Yes

Required Features User Experience (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Masks the impact of network latency on user -initiated actions Multiple latency reduction techniques including: Speed. Screen Image Acceleration, HDX Browser Accel, HDX Media Stream, Mouse Click Feedback and Local text echo. No. Lacks capabilities for dynamically handling network latency issues (e. g. , local echo or dynamic color depth changes), but does offer multimedia redirection including specific optimization for Windows live services that can reduce some latency effects. 28 Client for Windows provides local feedback of text entry. The Experience Optimized Protocol (EOP) Xtream protocol minimizes the impact of network latency on WAN connections. Provided via PCo. IP’s “Progressive Build” feature.

Required Features User Experience (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Supports multiple monitors connected to the client endpoint Up to eight monitors with 24 -bit color. Maximum total screen resolution across all monitors must not exceed 56 MB. Users can have up to four monitors with a total maximum resolution of 4096 x 2048 and 32 -bit color (16 monitors in a Windows 7/Windows Server 2008 environment). 29 RDP 5/6 -based Up to 1920 x 1200 32 connections support -bit color four up to 4 monitors. with a total max resolution of 4, 096 x 2, 048, 32 -bit color. RDP 7 supports up to 16 monitors, each with a maximum screen resolution of 4, 096 x 2, 048. Multimonitor for Mac OS X not supported.

Required Features User Experience (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Supports common universal serial bus (USB) devices Supports USB mass storage, human interface devices (HIDs), printers, scanners, and isochronous devices. Supports USB mass storage, human interface devices (HIDs), printers, scanners, and isochronous transfers. Supports persistent virtual desktops Supports shared nonpersistent virtual desktops Yes Yes Images are managed using the VMware View Composer interface. 30

Required Features User Experience (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Supports playback of multimedia content WMV, WMA, AC 3, MP 3, MPG-1, MPG 2, and MPG-4 -part 2, Adobe Flash, Quick. Time, and Microsoft Silverlight remoting are supported. . Multimedia content redirection can offload Windows Media Player multimedia content and Aero Glass effects from virtual desktop to endpoint to improve multimedia performance and reduce server load. All other multimedia graphics (e. g. , Direct. X, Direct 2 D, Direct 3 D, Silverlight, Flash, etc. ) are rendered on the virtual desktop using physical server resources. 31 WMV, WMA, AC 3, MP 3, MPG-1, MPG 2, and MPG-4 Part 2, Adobe Flash, Quick. Time, and Microsoft Silverlight remoting are supported. WMV, WMA, AC 3, MP 3, MPG-1, MPG 2, and MPG-4 -part 2, Adobe Flash, Quick. Time, and Microsoft Silverlight remoting are supported.

Required Features User Experience (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Audio/video resource utilization tuning and control Policy based control of default settings for multi-media compression level, bandwidth allocation, and video frame rate. With autonomic adjustment in response to changes in latency and bandwidth. Audio and video compression settings, are configurable through group policy objects (GPO) 32 Supports policybased multi-level audio and video compression setting, both bit-rate and compression. Resource tuning for all connection protocols is configurable in the vdm_client. adm Windows GPT. PCo. IP settings are configurable in the pcoip. adm GPT.

Required Features Service Advertisement and Connection Brokerage Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Broker runs on a mainstream x 86 server OS Supports Windows The Desktop Server 2008 R 2 Delivery controller can be installed Windows Server 2003 Service Pack 2 Standard or Enterprise, Windows Server 2003 R 2 (x 86 and x 64). Windows 2008 Server is not supported. 33 The broker is supported on Windows Server 2003 Service Pack (SP) 2, Windows Server 2003 R 2 (x 86 and x 64), Windows Server 2008, and Windows Server 2008 R 2 (x 86 and x 64). The View Connection Server can be installed on Windows Server 2003 SP 2 Standard or Enterprise (32 -bit or 64 -bit) and Windows Server 2008 (32 -bit or 64 bit) server OSs.

Required Features Service Advertisement and Connection Brokerage Feature Citrix Microsoft VDI Quest Xen. Desktop 4 Suite Premium v. Workspace SP 1 Plat. 7. 1 Ent. Broker scales to support 5, 000 concurrent connections per server instance DDC scalability is determined by the number of sessions being launched at the same time rather than the total connection count. 5, 000 concurrent connections per broker is supported. Citrix best practice is to assign multiple servers to this role to support high availability. See Delivering 5000 Desktops with Citrix Xen. Desktop 4. A single connection not publish scalability broker can support up to 2, 000 connections. data for the Remote Multiple connection Desktop Connection Broker. For scalability brokers can be deployed in parallel to into the thousands, provide redundancy Microsoft and to provide scalerecommends the out to 25, 000 nodes in combined a single farm. Microsoft/Citrix offering. No. Microsoft does 34 VMware View 4. 5 Premier Scalability to 10, 000 nodes supported via clustering five View Connection Servers. 2, 000 connections per node are supported using RDP or PCo. IP. A metadata store is maintained on each individual server, and Lightweight Directory Access Protocol (LDAP) replication is used to ensure the metadata for up to 10, 000 desktops is maintained across all cluster nodes. For more information on View Connection Server, see the “VMware View Architecture Planning Guide” for more info.

Required Features Service Advertisement and Connection Brokerage Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Connects users to SHVDs and PC blades ICA/HDX and RDP is supported for both VM and Blade PC environments. RDS connects users EOP and RDP are to SHVDs and blade supported for both PCs using RDP. virtual machine (VM) and blade PC environments. Provides a web -based connection interface Citrix Web Interface IIS 6. 0 (32 -bit) IIS 7. 0 (32 -bit and 64 -bit) Apache Tomcat 6. 0. x on RHEL 5. 3 AP (x 86). Remote Desktop Web Access requires Windows Server 2008 R 2. 35 PCo. IP support for blade PCs requires a Teradici host card in the blade. Blade PC IHV solutions such as HP Remote Graphics Software (RGS) are also supported. Web Access runs on Clients connect to IIS 6. 0 or later. the web-based Optimized to work VMware View Portal with IE 7+ running to download, install, Active. X. Browsers or update the View without Active. X will software client. function, but some features will not be available (e. g. , Windows client detection and autoinstall).

Required Features Service Advertisement and Connection Brokerage Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Supports a standard (industry or de facto) remote display protocol Enables session reconnection from both current or new endpoints ICA/HDX and RDP support for both VM and Blade PC environments. Yes Quest EOP and RDP and PCo. IP are Microsoft RDP are supported by default. Yes 36 Inactive session time-outs can be set to shut down idle desktops (default is 10 hours).

Required Features Business Continuity Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. No single point of failure No SPo. F in access infrastructure, SHVD infrastructure, or support services. Critical services are monitored using a “heartbeat”. In the event of service failure an election will be called to ensure that service is maintained at all times. No SPo. F exists in access infrastructure for all SHVD delivery components. 37 No SPo. F is in access infrastructure. The SHVD infrastructure is not dependent on application delivery controllers (ADCs) or virtual infrastructure for providing failover of critical services. However, v. Workspace is dependent on availability of its management database (Microsoft SQL Server 2005 and SQL Server 2008) for normal operation. View Administrator uses LDAP replication and network load balancing to provide resiliency. Scalability to five replica servers is supported. The VMwarerecommended deployment involves running the View Administrator server in a virtual machine (VM) to take advantage of the underlying virtual infrastructure HA capabilities.

Required Features Business Continuity (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Failure detection, isolation, and recovery Infrastructure servers perform functional validation checks to monitor operation of critical services and take action to isolate or recover failing component. Additional failure detection and recovery provided by the requisite virtual infrastructure back-end. The native Windows Server Failover Cluster (WSFC) logic provides service-level monitoring for the RDS gateway, thus providing automated recovery from a service failure. Server-level monitoring and automated recovery is also provided via Microsoft System Center Operations Manager, which is also included in the VDI Suite Platinum Edition. 38 Failure detection and recovery provided by the virtual infrastructure back end. In addition, both the v. Workspace Client and Web Access Gateway seamlessly roll over to alternate connection brokers after a predetermined timeout in the event of connection-broker failure. Failure detection and recovery provided by the requisite v. Sphere virtual infrastructure back end. The System Health Dashboard feature in the View Administrator interface displays virtual desktop faults in real time. Failure notifications can also be exported to third-party enterprise management tools such as Microsoft SCOM.

Required Features Network Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Integrates with enterprise application delivery controllers ADCs from Blue. Coat, Cisco, Citrix, Expand, F 5, Juniper, and Radware integrate with Xen. Desktop infrastructure. ADCs from Citrix, F 5, Cisco Systems, and Juniper are supported. 39 No. ADCs will interoperate with v. Workspace, but Quest does not publish a list of supported devices. Cisco Systems, Citrix Systems, and F 5 Networks ADCs officially support VMware.

Required Features Network (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Supports workplace productivity activities at reasonable bandwidth/late ncy Xen. Desktop 4. 0 supports typical knowledge worker tasks at under 200 Kbps bandwidth and latency in excess of 100 ms. Microsoft VDI Suite supports typical knowledge worker tasks at under 200 Kbps bandwidth and 100 ms latency. 40 Quest EOP supports typical knowledge worker tasks at under 200 Kbps bandwidth. Latency up to 160 ms is supported when the EOP Xtreme (WAN acceleration) feature is used and sufficient bandwidth is available. Without EOP Xtreme, RDP suffers when latency is > 30 ms. View 4. 5 with PCo. IP supports typical knowledge worker tasks at less than 200 Kbps bandwidth and latency up to 100 ms.

Required Features Network (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Offers dynamic traffic prioritization Prioritizes real-time traffic (screen, mouse, keyboard, and multimedia) ahead of file and print traffic, with autonomic adjustment in response to changes in latency and bandwidth. Tuning of bandwidth allocation (virtual channel prioritization) between display traffic and all other traffic (e. g. , print, disk, clipboard and USB) is possible. 41 Tuning of bandwidth allocation (virtual channel prioritization) between display traffic and all other traffic (e. g. , print, disk, clipboard, and USB) is possible. Granular traffic (e. g. , voice, file, human interface device, or print) prioritization is available via PCo. IP’s virtual channels option.

Required Features Network (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Integrates with VPN appliances Citrix, F 5, Juniper all support or fully integrate with Xen. Desktop Provides a secure remote access gateway Via Microsoft’s Citrix provides physical and virtual Remote Desktop Gateway (RDG). remote access gateway appliances as well as a Windows Server (2003 and 2008) based remote access gateway. Cisco and Juniper appliances, among others, are supported. 42 Juniper Secure Access integration is supported. Other third-party VPN appliances will interoperate with v. Workspace, but Quest does not publish a specific list. Quest provides v. Workspace Secure -IT SSL VPN gateway. Cisco and Juniper Networks appliances, among others, are supported. Implemented using the View Administrator “Security Server” installation option.

Required Features Storage Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Integrates with third-party array storage provisioning features Xen. Server and Hyper-V integrate with storage arrays from Compellent, EMC, Hitachi Data Systems, HP, Net. App and others through Storage. Link component of Citrix Essentials for Hyper -V and Citrix Essentials for Xen. Server. Storage. Link is included with Xen. Desktop, but has a separate interface. Provides direct party solutions such support for vendor as Citrix Essentials storage array provisioning for Hyper-V. technologies such as Net. App Flex. Clone volumes with Data ONTAP 7. 3. 1 or later. No. Requires third- 43 Net. App (using the integrated Net. App Rapid Cloning Utility [RCU] in VMware View Administrator) and EMC (using the Celerra plug-in for v. Center), among others.

Required Features Storage (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Integrates with server virtualization platform storage provisioning features Thin-provisioned virtual disks are supported through the Storage. Link component of Citrix Essentials for Hyper -V and Citrix Essentials for Xen. Server. v. Sphere support for is provided by VMware v. Center Server. Provides direct support for Microsoft Hyper-V differencing disks. 44 Provides direct support for VMware Linked Clones (with v. Center Server 2. 5 or later and ESX 3. 5 or later) and Microsoft Hyper-V differencing disks. v. Sphere thinprovisioned virtual disks and linked cloning are supported.

Required Features Back End Virtual Infrastructure Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Hypervisor support for memory overcommit Via Dynamic The supported VMware VI 3. x and Memory in Windows Server 2008 R 2 SP 1. v. Sphere 4. x hypervisors offer memory overcommit. Support for 8: 1 virtual CPU (v. CPU) to physical CPU (p. CPU) core oversubscription VMware v. Sphere 4. x hypervisor offers 20: 1 oversubscription. Microsoft Hyper-V offers 8: 1 oversubscription 8: 1 v. CPU oversubscription is supported. Microsoft supports up to 512 v. CPUs per Hyper-V host and up to 64 logical processors (physical processors x cores x threads) per host. Up to 384 VMs are supported per physical host. 45 The supported VMware Infrastructure (VI) 3. x and v. Sphere 4. x hypervisors offer memory overcommit. VMware v. Sphere 20: 1 4. x hypervisor offers oversubscription is 20: 1 supported. oversubscription. Microsoft Hyper-V offers 8: 1 oversubscription. Oversubscription is not applicable to Parallels Virtuozzo Containers.

Required Features Management Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Management server runs on a mainstream x 86 server OS Supports Windows Server 2003 SP 2 and Windows Server 2003 R 2 Windows Server 2008 R 2 46 Supports Windows Server 2003 SP 2 and Windows Server 2003 R 2 as well as Windows Server 2008 and Windows Server 2008 R 2. The View Connection Server can be installed on Windows Server 2003 SP 2 Standard or Enterprise (32 -bit or 64 -bit) and Windows Server 2008 (32 -bit or 64 bit) server OSs.

Required Features Management (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Integration with enterprise management solutions Includes Xen. Desktop SDK; Windows Power. Shell commandlets; SNMP support offered through Citrix Edge. Sight and workflow automation and run book automation through Workflow Studio; Xen. Desktop includes support for Microsoft System Center Virtual Machine Manager 2008. Microsoft VDI Suites include use rights for System Center Virtual Machine Manager (SCVMM), System Center Configuration Manager (SCCM) and System Center Operations Manager (SCOM). SNMP and WMI providers enable integration with third-party enterprise management solutions. 47 No. Support for Microsoft Systems Center Operations Manager (SCOM) 2007 R 2 is under development. View 4. 5 includes a Microsoft SCOM management pack, Windows Power. Shell commandlets, tools to harvest the View 4. 5 relational database and export to comma-separated values (CSV)formatted files, and a new application event stream.

Required Features Management (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Management console supports up to 5, 000 virtual desktops Scalability to 5, 000 is supported. No. Microsoft Scalability to 5, 000 recommends its joint is supported. solution with Citrix for scalability beyond hundreds of desktops. Scalability to 10, 000 managed virtual desktops is supported. Management console supports multiple concurrent users No fixed limit, console responsiveness may be reduced if a larger number of searches are conducted at the same time. There is no fixed limit to the number of concurrent administrators. No logical limit exists, but VMware has tested internally with several dozen concurrent administrators. 48 No fixed limit to number of concurrent administrators. Quest has tested internally with 10 concurrent administrators.

Required Features Management (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Policy-based management The Xen. Desktop policy engine manages session configuration. Four Windows Active Directory Group Policy Templates (GPTs) manage virtual desktop and endpoint configuration Farm. GUID. adm, icaclient_usb. adm, vda_usb. adm. The Microsoft VDI Suite leverages Windows Group Policy Objects (GPOs) for centralized management of virtual desktops. 49 v. Workspace makes limited use of rulesbased policies to apply administrator defined settings (e. g. , session time zone assignment can be made based on AD group membership, organizational unit [OU] assignment, client device name, or IP address). View 4. 5 Manager offers a policy engine in addition to five Windows AD GPTs.

Required Features Management (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Includes user, virtual desktop, and endpoint search capabilities Supports streamed and locally installed virtual applications Yes Yes View Administrator includes a search tool. Locally installed applications are supported within Xen. Desktop. Streamed (and hosted) applications are supported through Citrix Xen. App included in Xen. Desktop Enterprise and Platinum. App-V streamed applications can be deployed to virtual desktops, physical desktops, or published to serverbased computing (SBC). Applications can also be hosted separately from the SHVD image with Microsoft Remote. App. Microsoft App-V streamed applications can be deployed to either virtual or physical desktops. VMware Thin. App included in VMware View Premier. Thin. App management is included in the View Administrator interface. 50

Required Features Management (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Flexible management of virtual desktop OS and application updates Locally installed application and OS updates are supported within Xen. Desktop. Streamed (and hosted) applications are supported through Citrix Xen. App which is included in Xen. Desktop Enterprise and Platinum OS and application updates to persistent desktops can be made using SCCM to install MSI files or by leveraging Microsoft App-V. Updates to nonpersistent desktops can be made using Microsoft App-V. 51 OS and application updates to persistent desktops can be made by using conventional distributed desktop management systems by using v. Workspace to install Microsoft Installer (MSI) files, or by leveraging Microsoft App-V. Updates to nonpersistent desktops can be made using Microsoft App-V. Provided via VMware Update Manager.

Required Features Management (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Command-line interface and scripting support Scripting is supported through the Citrix Desktop Delivery Controller Power. Shell SDK. Solution installation does not require vendor professional services Yes Comprehensive No scriptable interfaces are documented in the Remote Desktop Services reference and SCVMM scripting guide. Yes 52 Provided via “Command Line Tool for View Manager. ” Yes

Required Features Security Feature Citrix Xen. Desktop 4 SP 1 Plat. Microsoft VDI Quest Suite Premium v. Workspace 7. 1 Ent. VMware View 4. 5 Premier Directory services integration Xen. Desktop integrates with AD to manage virtual desktop access and perform management authentication. AD is also used as the primary mechanism to identify Xen. Desktop Delivery Controllers (DDC) through a dedicated OU. It is possible to deploy Xen. Desktop without creating a dedicated OU by hard coding the FQDN of each DDC into the registry. VDI Suite manages objects using Active Directory users group's and organizational units (OU), and for the assignment of delegated administration rights. Offers clean AD integration by leveraging AD Application Mode (ADAM) on Windows Server 2003 domains and AD Lightweight Directory Services (LDS) on Windows Server 2008 domains. 53 v. Workspace manages objects using Active Directory (AD) users groups and OUs

Required Features Security (continued) Feature Citrix Microsoft VDI Quest Xen. Desktop 4 Suite Premium v. Workspace SP 1 Plat. 7. 1 Ent. VMware View 4. 5 Premier Role-based access controls (RBACs) Xen. Desktop supports pre-built and custom user roles. RBACs and administrative delegation are assignable using Remote Desktop Services Manager permissions. Delegated administration and pre -defined roles (e. g. , administrator or helpdesk) were added in View 4. 5. 54 Supports customer role creation with granular control of permissions on all roles.

Required Features Security (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Client and management traffic is secured SSL/TLS and ICA/HDX Encryption (up to 128 -bit) for client traffic. Supports SSL/TLS for XML based management traffic, but not Citrix Independent Management Architecture (IMA) traffic. All client and management traffic can be optionally secured using SSL or TLS encryption for the Web management service and IPsec for ODBC communications. 55 RDP and EOP client Via Hypertext communication can Transfer Protocol be secured using Secure (HTTPS). SSL or TLS encryption. Management traffic between the data collector and connection broker and among the data collector, administrative console, and backend virtual infrastructure can be encrypted using SSL.

Required Features Security (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Security logging and auditing of administrative actions All configuration changes are logged. Feature added in SP 1. Supports standard remote access authentication protocols System Center Operations Manager includes audit collection services to gather and report on administrative actions. Kerberos-based Supports PAP, credential pass. CHAP, MS-CHAP through is supported v 1, and MSCHAP v 2 for AD domain protocols. remote clients. X. 509 certification for access via the Remote Desktop Gateway using Secure Socket Layer (SSL) and Transport Layer Security (TLS) for Web Access. 56 No Supports X. 509 certification for access via Secure. IT along with SSL and TLS for Web Access. Kerberosbased credential pass-through is supported for AD domain-joined remote clients. Event logging capabilities were updated in View 4. 5 to provide an audit trail for all administrative actions. Delegated to AD, RSA Secur. ID, smart card (but not with PCo. IP on Windows Vista or Windows 7), or Secure Sockets Layer (SSL) certificate.

Required Features Guest OS Support Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Windows 7 (32 -bit and 64 -bit) and Windows XP (32 -bit) guest Yes Yes 57 Yes - Windows 7 (32 -bit and 64 -bit) support was added in View 4. 5.

Required Features Licensing Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Offers a choice of the following models: Concurrent user Named user Concurrent No. Microsoft VDI Licensing offered Suites are licensed only with per-device. Xen. Desktop 4. 0 VDI Edition 58 Concurrent user (i. e. , number of concurrent connections) is the default licensing model. Named users are counted as concurrent users. Concurrent user is the default licensing model. Named users (for local virtual desktops) are counted as concurrent users.

Required Features Product Support Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Three-year minimum of market General support is available for four years from the product release date. Citrix recently updated policy to include all “nonsale” products (e. g. , the ICA clients, Web Interface and Secure Gateway). Satisfied by general support. Citrix provides a minimum of 12 month’s notice for “End of Maintenance. ” One-year minimum of extended support Mainstream support is available for five years from the product release date. No. General Extended support is available for five years following the end of general support. 12 months of extended support is offered following expiration of general support 59 support is available for 12 months after the product release date. General support is available for three years from the product release date. VMware defines extended support as “technical guidance, ” which is available for two years following the end of general support.

Required Features Product Support (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Published support lifecycle dates at product launch Support lifecycle dates are published on the “Product Matrix” web page. Support lifecycle information for each of the point products that comprise the VDI Suite is available at the web page “Lifecycle information for Microsoft Server products. ” 60 No. Quest has published the v. Workspace product life cycle for previous product releases, but has not yet published the full life cycle for v. Workspace 7. 1 Support lifecycle dates are published on the “VMware Enterprise Desktop Support” webpage.

Required Features Third Party Vendor Support Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Certification program for third-party application vendors See the “Citrix Ready Program Guide“ for details. Certified products are listed in the “Citrix Ready Product Listing”. As above. Certification program for thin client vendors See the Microsoft Windows 7 Compatibility Center site and Windows Server Developer Center for program details. No. A technology Microsoft provides guidelines for vendors looking to develop thin-client hardware, and offers a certification program for vendors that ship the Windows 7 Embedded OS. Certified devices are listed in “Quest v. Workspace—Thin Client support. ” 61 partner alliance program is under development. See the VMware site “VMware Ready for Applications” See the “VMware Ready Hardware Certification Program. ” Certified vendors are listed in the VMware Compatibility Guide.

Required Features Third Party Vendor Support (continued) Feature Citrix Microsoft VDI Quest VMware View Xen. Desktop Suite v. Workspace 4. 5 Premier 4 SP 1 Plat. Premium 7. 1 Ent. Public user forum for discussion of application support issues See the Citrix “Xen. Desktop” Forum and the Citrix “Xen. Desktop Developer Network”. A community verified program is also available “Citrix Ready Community Verified. The Microsoft Forums site is available for discussion of all Microsoft products. 62 See the VMware community “VMware Support. Link site View (with View (registration Manager)” and the required) is available for support “Thin. App of all Quest products Community Portal. ” but does not provide a discussion forum. No. The Quest My

Conclusion 63

Conclusion • VMware View 4. 5 and Citrix Xen. Desktop 4 SP 1 are the only enterprise-ready SHVD platforms • Quest v. Workspace and Microsoft VDI are suitable for small business and department-level deployments • Third party add-ons may be deployed to satisfy existing feature shortcomings • Management scalability meets today’s requirements, but more work remains • You know what you need better than anyone! 64

Additional Information • Server-hosted Virtual Desktops http: //www. burtongroup. com/Client/Research/Document. aspx? cid=1874 • Server-hosted Virtual Desktop Profile: VMware View 4. 0. 1 http: //www. burtongroup. com/Client/Research/Document. aspx? cid=2079 • Server-hosted Virtual Desktop Profile: Citrix Xen. Desktop 4 Platinum SP 1 http: //www. burtongroup. com/Client/Research/Document. aspx? cid=1982 • Server-hosted Virtual Desktop Profile: Quest v. Workspace 7. 1 Enterprise http: //www. burtongroup. com/Client/Research/Document. aspx? cid=2089 • Virtual Desktop and Application Delivery reference architecture template http: //www. burtongroup. com/Client/Research/Document. aspx? cid=1775 65