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Xen App Platinum For Service Providers (072209)



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  • Planning and design is probably the most overlooked facet related to optimization. In order to optimize an environment, you must understand it, plan accordingly, create a design document, and communicate with stakeholders.
  • Application Streaming has been added to the Advanced edition of XenApp. Offline Streaming will no longer take a license from the pool. The XenApp servers will require a hotfix to enable the new Streaming functionality.
  • EdgeSight for Load Testing can be used on an unlimited basis on Enterprise and Platinum edition servers. There is an SA check to ensure compliance.
  • When compared to previous releases, farm behavior has been significantly optimized to take advantage of servers that are configured as either Most Preferred or Preferred. These rankings are set in the Presentation Server Console. Some of the optimizations introduced by Hotfix Rollup Pack 3 require all Most Preferred and Preferred ranked servers to be upgraded before the optimizations take effect. If there is a single ZDC without HRP03 specified as Most Preferred or Preferred, many of the optimizations will not be utilized. In addition, the large farm self tuning occurs only on servers that are specified as Most Preferred or Preferred. The Active election monitoring optimizations utilize designated backup ZDC’s to check the health of the primary ZDC. Overall, elections will be faster when a Most Preferred or Preferred server is elected. As you can see, it’s very important to have a properly configured environment in regards to the configured election rankings. Best practices and considerations for this are too significant to fully cover in this presentation, so please be sure to read the Selecting Zone Data Collectors section of CTX118659.
  • Virtualization can be used for any or all XenApp servers.
  • If you’re just getting started with virtualization, consider virtualizing your infrastructure servers.
  • Depending on your environment, it may or may not make sense to virtualize your XenApp servers.
  • Very often, the default load evaluator is kept in place, which doesn’t typically provide the optimal user experience.
  • Realistically, not every customer has the need for Profile Management. Using Profile Management is more complex than the standard Microsoft profile solutions and does have some learning curve. The implementation of Profile Management should be based on both technical and business requirements.The suggested use cases presented represent examples where UPM would represent the best technical and business solution. In general, mandatory profiles should be considered first, then roaming profile, then UPM.CTX119036 will be available in early February.
  • To enable Clear Type font smoothing on Windows XP, go to Display PropertiesAppearanceEffects and change the drop down to ClearType. To enable ClearType font smoothing on Windows 2003:-At least service pack 1 is needed in order to install hotfix KB946633 on Windows Server 2003-If using XenApp 5 on Windows 2003, post HRP3 Hotfix PSE450R02W2K3037 Font SmoothingFont smoothing over RDPand ICA connections can be disabled altogether by setting the following registry value. This applies to all connections to the WS2003 server.HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionWindowsTSEnableFontSmoothing=0 [DWORD]Configuring Font SmoothingBe sure that font smoothing is enabled on the server. Now it must be configured per user through the following registry value for font smoothing type:HKEY_CURRENT_USERControl PanelDesktopFontSmoothingType [DWORD] Possible values:0: Font smoothing disabled1: Standard font smoothing (designed for CRT monitors)2: ClearType font smoothing (designed for LCD monitors)The default value is 2, i.e. ClearType font smoothing is enabled. The default value originates from the default user profile (typically C:UsersDefaultNTUSER.DAT).ClearType font smoothing is also enabled on the logon desktop. This is stored in HKEY_USERS.DEFAULTControl PanelDesktopFontSmoothingType.For More Information see:CTX117434 – Hotfix PSE450R02W2K3037 - For Citrix Presentation Server 4.5 for Windows Server 2003CTX117240 – LIMITED RELEASE - Hotfix PSE450R01W2K3052 - For Citrix Presentation Server 4.5 for Windows Server 2003CTX111720 – Microsoft Office 2007 Known IssuesWhat is ClearType?XenApp release provides the ability to remote ClearType fonts (used by several applications like Office 2007) to provide a much better user experience on LCD displays (laptops, flat screens etc). You have to remember that ClearType also adds some network overhead and hence you can enable/disable based on user needs. Normally, the software in a computer treats the computer’s display screen as a rectangular array of square, indivisible pixels, each of which has an intensity and color that are determined by the blending of three primary colors: red, green, and blue. However, actual display hardware usually implements each pixel as a group of three adjacent, independent subpixels, each of which displays a different primary color. Thus, on a real computer display, each pixel is actually composed of separate red, green, and blue subpixels. For example, if a flat-panel display is examined under a magnifying glass, the pixels may appear as the magnified pixel in the slide. Here we can see how 1 pixel actually consists of 3 subpixels.If the computer controlling the display knows the exact position and color of all the subpixels on the screen, it can take advantage of this to improve the apparent resolution of the images on the screen in certain situations. If each pixel on the display actually contains three rectangular subpixels of red, green, and blue, in that fixed order, then things on the screen that are smaller than one full pixel in size can be rendered by lighting only one or two of the subpixels. For example, if a diagonal line with a width smaller than a full pixel must be rendered, then this can be done by lighting only the subpixels that the line actually touches. If the line passes through the leftmost portion of the pixel, only the red subpixel is lit; if it passes through the rightmost portion of the pixel, only the blue subpixel is lit. This effectively triples the horizontal resolution of the image at normal viewing distances; but the drawback is that the line thus drawn will show color fringes (at some points it might look green, at other points it might look red or blue).ClearType uses this method to improve the smoothness of text. When the elements of a type character are smaller than a full pixel, ClearType lights only the appropriate subpixels of each full pixel in order to more closely follow the outlines of the character. Text rendered with ClearType looks “smoother” than text rendered without it, provided that the pixel layout of the display screen exactly matches what ClearType expects.Configuration:For a WI site, ClearType (CT) can be enabled or disabled in the Manage Session Preferences >> Display>> Display settings dialogue. This setting only applies to connections through WI. If CT is turned on and the users device does not support CT, it will be off during the users session. For a XenApp Services (PNAgent) site, ClearType (CT) can be enabled or disabled in the Change Session Options >> Display >> Display settings dialogue. This setting only applies to connections through XenApp Plug-in. If CT is turned on and the users device does not support CT, it will be off during the users session. For non-WI or XenApp Plug-in connections, whether CT is on or of depends on the user device. If the device is Windows XP or higher then ClearType is available only if it is enabled on the user device. In Windows XP, CT is disabled by default. In Windows Vista, CT is enabled by default.NOTE: as a limitation of ClearType and the hardware itself, CT may actually degrade font viewability on rotated LCD monitors because the pixels are stacked rather than side-by-side. This changes the location of pixels (and hence sub-pixels). Note, however, that this degradation is unrelated to any Citrix implementation of CT. It is primarily related to the relationship between hardware (lcd monitor) and software (cleartype engine).Bandwidth increase and In the last article, the numbers were 3.35 to 6.6.Disabling font smooting on Windows 2003 for all connections RDP and ICAHKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionWindowsTSEnableFontSmoothing=0 [DWORD]
  • If Enterprise or Platinum, you can improve SSBA performance by configuring as shown above.
  • SpeedScreen Progression Display is enabled using a Citrix policy. However since it is in all 3 editions by default with this release, you will only need to create a Citrix policy if you plan on changing the default settings. If no changes to the defaults are required, then it is not necessary to create a policy to enable this feature. It will be on in the product by default.
  • There are actually two stream-to-client options:Stream-to-Client:offline usage – this means that you can disconnect from the network and you can use the application offlinePRO- can be streamed to the client machine locally and then the client can be disconnected from the network and the application will be available offlineCON- no current mechanism to track offline applicationsStream-to-Client:no offline usage – this means that you stream the application to the client device but when you disconnect from the network the application cannot be used offlinePRO- the benefit of this is that the application gets streamed to the client and ends up using client resources instead of server resourcesCON- cannot be used offline- takes additional bandwidth to stream application locally to the client
  • Think about an application that does not have to change the registry. Isn’t that a dream come true?The Streaming Client uses isolation environments to control application compatibility and accessibility. The client creates isolation environments by defining a set of rules that specify how an application functions within its confines. The default rules for isolation environments are adequate for most environments. However, you can alter the default set of rules, as needed, to exert control over application interactions with client operating system resources.Isolates apps from OS – isolates application from the OS thus not having to install the application directly into the OSEliminates application conflicts – if one application conflicts with another when installed on the same machine, application streaming isolates each application from each thus never interfering with the other application because it does not even know that it existsIsolates processes, files, folders and registry – the application no longer needs to write to the OS registryAllows applications to be accessed offline – with application streaming you can stream the application to a machine and unplug the network cable to be able to be able to use it offline. This help mobile users who do not have access to a network all the time.Scalable application delivery – if you have a large farm with hundreds of servers, instead of installing the same application on each individual server you can just profile the application, place it on an accessible share and stream the application to as many servers as you see fit without ever having to actually install it.
  • Citrix includes some tools for system monitoring. Whether you use these tools or third-party tools, you can’t provide an optimal user experience without monitoring.
  • CheckXMLThreads is there to identify a problem with the XML Service noting a deadlocked state. In this case, taking the DC out of load balancing won’t do anything. Restart IMA or Alert.For the IMAService test on the DC, you probably don’t want to do anything, as IMA will take care of itself in this scenario, so you don’t want two things fighting over each other.For the TermSrv test, you want to remove the server from load balancing, as termsrv is required for anything to work properly. RequestTicket is by default remove from LB on the member servers. It really doesn’t mean much to remove a dedicated DC from LB.


  • 1. XenApp Platinum for Service Providers
    Technical Design Considerations – July 2009
    Presented by:
    Jo Harder
    Craig Marinella
    June 2009
  • 2. Agenda
  • 3. XenApp Platinum
  • 4. Failure to plan is planning to fail!
    Must review business and technical requirements as part of planning process
    Create documented design and review with stakeholders
    Plan and Design
  • 5. Platinum
    XenApp 5.0 Features
    Provisioning services
    Load testing services
    Profile management
    Workflow Studio orchestration
    Single sign-on (offline included)
    New to XenApp 5.0 Feature Pack
    Branch Optimization
    New/change to edition
    EdgeSight performance monitoring
    Existing feature in XenApp 5.0
    Secure application access
    EasyCall voice services
    Enterprise ManagementResource & Installation Manager, CPU/Memory Optimization, Health Assistant, MOM, UNIX apps
    Workflow Studio orchestration
    EasyCall voice services
    App streaming (offline included)
    App streaming (offline included)
    Hosted application delivery
    Hosted application delivery
  • 6. Server side:
    Presentation Server 4.5
    Component side:
    XenApp 5.0 Feature Pack (March '09 release)
    XenApp 5 Components CD for Windows Server 2003 (September '08 release)
    What is XenApp 5.0 for Windows Server 2003?
  • 7. Distinct version of XenApp based on the Windows Server 2008 platform
    Some unique features:
    XPS-based universal printer driver
    Special folder redirection
    Preferential load balancing
    What is XenApp 5.0 for Windows Server 2008?
  • 8. XenApp core, including:
    Installation Manager
    Health Monitoring
    App Streaming
    Web Interface
    EdgeSight service monitoring
    Provisioning services
    Load testing services
    Secure application access
    Features Likely to be Used by Service Providers
  • 9. Virtualizes the workload of a datacenter server and provisions to physical or virtual servers
    Includes operating system, applications and configuration
    Allows provisioning of XenApp Platinum servers only
    Cannot be used to provision XenApp Advanced or Enterprise servers, infrastructure servers, Web Interface servers, etc.
    Requires Provisioning Server 5.0 SP2
    Contains the licensing fix that enables use with Platinum licensing
    Provisioning Services
  • 10. Provisioning Services
    Service Provider Considerations
    Physical or virtual servers—doesn’t matter
    Don’t build like servers manually—automate with Provisioning Server
    Rather than spending significant time troubleshooting a single server, reprovision it
    Can include apps with base image
    Or can use Installation Manager or Streaming
  • 11. Excellent tool for user capacity planning and scalability testing
    Now included with XenApp Enterprise and Platinum editions
    Requires EdgeSight for Load Testing version 3.0.1
    Contains licensing fix that enables unlimited load testing functionality
    Load Testing Services
  • 12. Load Testing Services
    Service Provider Considerations
    How many users can I get on each box?
    Test physical or virtual capacity
    Test impact of CPU/Memory optimization and other features
    Single synthetic session can also be tested through EdgeSight
    Useful for SLA metrics
  • 13. Access Gateway (all versions) plug-in licensing included with XenApp Platinum
    Appliance must be purchased separately
    Sample use case:
    Secure Application Access
  • 14. Secure Application Access
    Service Provider Considerations
    Secure user connections!
    If not using Access Gateway, use Secure Gateway
    Only secures ICA and CGP (Common Gateway Protocol/Session Reliability) traffic
  • 15. Designing and Implementing XenApp
  • 16. XenApp Design Considerations
    Delivery Network
  • 17. Every XenApp server must belong to a farm
    Each farm requires its own Data Store and is its own administrative entity
    Farm Design
  • 18. Farm Design
    Service Provider Considerations
    Can segregate tenants by farm
    Be aware of complexity of administering numerous farms
    Keep all servers at a consistent level
    When upgrading, do so using order specified in Admin Guide
  • 19. Zones are analogous to Active Directory sites
    Data Collectors manage data flow between zones
    Zones can span WANs
    How many zones? Fewer zones are always better!
    DCs must replicate changes to all other DCs in the farm
    Bandwidth consumption is proportional to the number of zones
    Avoid having more than 5 zones in large environments
    Scale up zones instead of scaling out
    Zone Design
  • 20. Multiple Sites?
    Fewer than 5 sites?
    Similar # of servers at each site?
    Single Zone / Multi-Site
    Single Zone
    Zone Design
  • 21. Design Example of Single Zone
    Zone 1
    Data Collector
    TCP Port 2512
    TCP Port 2512
    Subnet 10.8.2.x
    Subnet 10.8.3.x
    Subnet 10.8.1.x
  • 22. Multiple Sites?
    Fewer than 5 sites?
    Similar # of servers at each site?
    Single Zone / Multi-Site
    Single Zone
    Zone Design
  • 23. Proposed Miami Zone
    x 500
    x 500
    x 30,000
    x 30,000
    x 30,000
    London Zone
    New York Zone
    Let’s do the math:
    ( 30,000 logons in NY Zone + 30,000 logons in London Zone + 500 logons in MIA Zone) * 0.5KB * 2 zones for replication = 60.5 MBof DC updates
    Design Example of Single Zone/Multiple Sites
  • 24. Design Example of Single Zone/Multiple Sites
    Proposed Miami Zone
    North America Zone
    x 30,500
    x 30,000
    London Zone
    New York Zone
    Let’s do the math again:
    ( 30,500 logons in NA Zone + 30,000 logons in London Zone) * 0.5KB * 1 zone for replication = 30.25 MBof DC updates
  • 25. Multiple Sites?
    Fewer than 5 sites?
    Similar # of servers at each site?
    Single Zone / Multi-Site
    Single Zone
    Zone Design
  • 26. Design Example of Multiple Zones
    • Primary datacenter
    • 27. 200 servers
    Las Vegas
    • Backup datacenter for business continuity
    • 28. 150 servers
    New York
  • 29. Zone Preference and Failover
    Europe Zone
    U.S. Zone
    Segregate zones based on business continuity
    Disable load sharing across zones
    Resolutions occur locally
    Primary site policy should not span zones
    Avoids resolutions across the WAN
  • 30. Zones
    Service Provider Considerations
    Segregating customers by zones provides no barrier
    Better option is to group customer servers into a folder in the management console to more easily administer
    A separate zone should not be used for isolating/ testing/piloting/staging of new applications for the farm
    The data collector’s responsibilities are independent of published application behavior
    Zone Preference and Failover useful for:
    Forcing users to a certain group of servers
    Failover to DR site
  • 31. XenApp Farm Data
    Data Store (DS)
    Static data
    • Farm configuration & settings
    • 32. Published apps
    • 33. Load evaluators
    • 34. Citrix administrators
    Local Host Cache (LHC)
    • Subset of data saved on member servers
    License Server (LS)
    Static & Dynamic data
    • License file
    • 35. Licenses in use
    • 36. Licenses available
    Data Collector (DC)
    Dynamic data
  • For WAN environments, use database replication
    Data store access consists primarily of reads; writes are infrequent
    Avoids high latency reads across the WAN
    Must use immediate updating transactional replication in SQL
    Data Store Selection
    Direct Mode
    (SQL, Oracle, DB2)
    Indirect Mode
    (Access, SQL Express)
  • 40. CPU power affects:
    Management console performance
    Installing a server into the farm
    Uninstalling a server from the farm
    Starting up multiple servers at the same time
    Production-level servers support >1000-server farms
    Dual-Core w/ 4 GB RAM
    Data Store Server CPU Resources
  • 41. Data Store
    Service Provider Considerations
    Enterprise-level database strongly recommended
    Perform daily backups
    Full if possible
    Data Store is not large but is critical
    Clustering is supported
    Can be housed on a virtual server
  • 42. Logs configuration changes to a database
    SQL Server or Oracle
    Setting allows for mandatory logging
    If CLDB is unavailable, configuration changes will not be successful
    Not set by default
    IMA Encryption only encrypts the CLDB credentials
    Only logs admin changes
    Up to ~50KB data per transaction X 1000 transactions = ~50 MB
    Configuration Logging Database
  • 43. Configuration Logging
    Service Provider Considerations
    Strongly recommended where multiple administrators modify server farm
    Enables correlation of new issues with administrative changes
  • 44. Each client connection must check out a license
    If License Server is unavailable, clients will take a grace license for up to 30 days
    License server should not be a bottleneck as it supports 170 check-outs per second
    License Server
  • 45. License Server
    Service Provider Considerations
    Multiple farms can share license server
    Or multiple license servers can be used within a single farm
    Monitor the license server with licensing PerfMon counters or Microsoft System Center with XenApp management pack
    Always use latest version (currently 11.6.1)
    License Server 11.6.1 required for Hotfix Rollup Pack 4
  • 46. Memory
    Memory consumption increases with farm size
    IMA typically uses 300 MB of RAM in a 1000-server farm
    A dual processor DC can support >1000 servers in its zone
    CPU usage increases as
    number of servers in the zone increases
    number of zones increase
    number of users launching applications increases
    Avoid using farm-wide app limits in environments with >10,000 users
    Data Collector Sizing & Performance
  • 47. Data Collector Multi-Core Scalability
  • 48. “Backup” Data Collector
    Default Preference
    Most Preferred
    Not Preferred
    Default Preference
    Limit the number of "Most Preferred" and "Preferred" servers to <5
  • 49. Large-scale verified!
    1000-server zones have been validated in the Citrix eLabs
    Proactively monitor for Data Collector overload
    ResolutionWorkItemQueueReadyCount performance counter
    WorkItemQueueReadyCount performance counter
    When load sharing is turned off, Data Collectors still maintain session information
    More zones = more scalability:
    More zones use more bandwidth and CPU on the DC
    Data Collector Considerations
  • 50. Data Collector
    Service Provider Considerations
    Designate a dedicated Data Collector
    Secure Citrix XML traffic with SSL Relay
    If a very large farm, segregate Citrix XML Service functionality onto another server
  • 51. Anywhere you want!
    All servers within a XenApp farm can be virtualized
    If a server is running at low capacity, regardless of function, it is a good candidate for virtualization
    Data center space consolidation
    Disaster recovery
    Test/dev lab
    Where Does Virtualization Fit?
  • 52. Citrix License Server
    Low resource requirements; single-threaded functionality
    Web Interface
    Redundancy or peak requirements addressed with virtual machines
    Dedicated Zone Data Collector
    Low resource and space requirements
    Data Store server
    Low resource requirements
    Infrastructure Servers
  • 53. ~7% overhead for XenApp running on XenServer
    Dynamic server allocation
    For example: finance app has end of quarter peak demand
    Address single point of failure for apps hosted on a single server
    Member Servers
  • 54. Load Manager
    ClearType Font Smoothing
    Other challenges
    Additional Features
  • 55. Ensure that users are directed to the XenApp server with the lightest load
    Improves user experience
    Does the commonly used default load evaluator optimize this . . . no!
    Impact of Load Manager
  • 56. Not for every environment!
    Maybe . . . maybe not
    More complex and different than out-of-the-box standard Microsoft solutions
    Additional knowledge and maintenance required
    Suggested use case:
    User accesses multiple XenApp server silos or farms
    Multiple ICA sessions open
    Is Citrix Profile Management Right for Me?
    General (not always!) Recommended Profile Solution
    See CTX119036 and CTX120285 for Best Practices and discussion of use cases
  • 57. Improves the smoothness of text
    Enabled by default in the XenApp Web and XenApp Services site
    Important Consideration: ClearType can increase bandwidth consumption by about 2X
    Enabled by default in Windows Server 2008 and Vista
    ClearType Font Smoothing
  • 58. Although enabled by default, can be optimized to reduce bandwidth requirements
    Slightly reduces image quality
    Users will likely not notice difference
    Recommend to compress JPEG images to improve bandwidth Adjust compression level based on available bandwidth if Enterprise or Platinum
    SpeedScreen Browser Acceleration
  • 59. Feature enabled in all editions of XenApp 5.0 for Windows Server 2008
    Default is Image Acceleration set to medium and Progressive Display compression set to very high
    Recommend to:
    Use Restrict Compression setting to apply only to users with low-bandwidth connections
    Enable heavyweight compression
    SpeedScreen Progressive Display
  • 60. Application streamed and executed on the local machine
    Application profiled using Streaming Profiler, then stored in App Hub
    User logs in and the icon to the application is enumerated
    User clicks on the application icon and the application is launched
    Client-side Application Virtualization Overview
    File Share(e.g. Application Hub)
    XML Service(on XenApp Server)
    Application Interface
    Application Run-time
    Application Run-time
  • 61. Server-side Application Virtualization Overview
    Application streamed and executes on the XenApp server
    Application profiled using Streaming Profiler tool, then stored in App Hub
    User logs in and the icon to the application is enumerated
    User clicks application icon and application interface is then sent to user device via ICA
    File Share(e.g. Application Hub)
    Application Interface
    Application Run-time
    Application Run-time
    XenApp Servers
  • 62. Isolates apps from OS
    Eliminates application conflicts
    Isolates processes, files, folders and registry
    Allows applications to be accessed offline
    Scalable application delivery
    Application Streaming Benefits
    During run-time app system calls, writes, modifications, etc. are diverted to local cache

    RadeCache onuser device
    Application Isolation proxies app execution toshield OS from application
  • 63. Additional Features
    Service Provider Considerations
    Don’t use local user profiles
    Weigh bandwidth requirements when deciding on ClearType and SpeedScreen
    Streaming to server can be useful for isolating tenant application sets
    Access to published resources should be based on groups
  • 64. How will user and/or computer accounts be configured in the domain?
    OU structure, policies, and profiles impacted
    How will users access and install Citrix plug-ins?
    Citrix Receiver or Web Interface deployment easiest options
    How will help desk associates assist users?
    Shadowing or GoToAssist
    How will multiple tenants securely access applications?
    Access Gateway or Secure Gateway
  • 65. Designing & Implementing EdgeSight
  • 66. Health Monitoring and Recovery
    Resource Manager (EdgeSight)
    EdgeSight Service Monitoring
    Something, anything!
    Even third-party tools . . . PerfMon isn't enough!
    Multiple Tools for Systems Monitoring
    You should have a watchful eye on the user experience and surprise your users with your level of understanding!
  • 67. Suggested Configuration of Health Monitoring
  • 68. Login time monitoring
    Process usage report
    Usage reporting
    EdgeSight Data
  • 69. Detailed EUEM Metrics with Startup Duration Detail
    TIP: Hover over column headers for explanation of data.
    Real-time information on User Troubleshooter
    Scenario: Login Time Monitoring
  • 70. Browse Tab
    “Process Usage”
    Enter in Search
    Click Meta Tags
    Scroll through list
    Process Usage Report
  • 71. Users listed
    Expand for Process names
    Expand for Server names
    Switch initial filtering
    Group By User
    Then Group By Process
    Usage Reporting
  • 72. Departments = Farm
    Optional Parameters
    Use Excel or CSV
    Usage Reporting: Filtering/Exporting
  • 73. Subscribe button
    Email or File Share
    Excel or CSV best options
    Date Range is “Rolling Date Range”
    Usage Reporting: Subscriptions
  • 74. EdgeSight
    Service Provider Considerations
    EdgeSight reports can easily address Citrix reporting requirements
    Maximize usage of EdgeSight in order to:
    Monitor health of farm and key applications
    Troubleshoot user issues
  • 75. Application Usage Video Walkthrough
    Introduction to EdgeSight Video
    Quick Start Guide, Key Metrics, Login Monitoring Guide
    Additional Resources
  • 76. Reference Materials
  • 77. References
    • Technical Guide to Upgrading/Migrating to XenApp 5: CTX117913
    • 78. Technical Guide to Upgrading/Migrating to XenApp 5 Feature Pack: CTX120635
    Awesome document!
  • 79. Citrix Support andCommunities sites provide valuable information
    Stay tuned for new releases
    When in doubt, engage Citrix Consulting
    May save time and money in the long run!
    General Recommendations
  • 80. The following courses expand on today's topics and are recommended to support your Citrix solution:
    CXA-201 Implementing Citrix XenApp 5.0 for Windows Server 2008
    CXA-300 Advanced Administration for Citrix XenApp 5.0 for Windows Server 2008
    CTX-1259 Citrix Presentation Server 4.5 and XenApp 5.0 for Windows Server 2003: Administration
    CTX-1264 Citrix Presentation Server 4.5 and XenApp 5.0 for Windows Server 2003: Support
    Look into Citrix Certified Infrastructure Architect courseware!
    Continue Your Learning