More Related Content Similar to Implementing and Troubleshooting PVS Similar to Implementing and Troubleshooting PVS (20) More from David McGeough (20) 2. Introduction
• Gareth O’Brien, escalation engineer
• Intermediate to advanced PVS knowledge expected
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3. Agenda
• Planning
ᵒDatabase, storage, network, farm layout
• Installing
• Configuring
ᵒFiles needed for booting, boot process
• Troubleshooting
ᵒStream Service
ᵒConsole, MAPI and IPC
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5. Planning
• Planning the database configuration
• Hardware requirements
ᵒClient & Server considerations
• Network
• Farm layout considerations
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6. Database
• Size of farm determines database server choice
• Fault tolerance and failover
ᵒMirroring
• dbOffline – if all else fails
• SQL native client needed for mirroring
• Permissions
ᵒDbcreator & securityadmin for Configuration Wizard
ᵒDb_datareader, db_datawriter & execute permissions on stored procedures
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7. Hardware Requirements
• Supported Operating systems
ᵒWindows Server 2003 R2, 2008, 2008 R2
• Minimum spec of the PVS server
• Known hardware issues
ᵒhttp://support.citrix.com/article/CTX131611
• NIC Teaming
ᵒMake sure hardware is not on above list
ᵒIf streaming doesn’t work with team, try break the team
Processor: 3GHz
RAM: 4GB
NIC: 1GB per 250 targets
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8. Network
• Configure UDP & TCP Ports
ᵒServer to server ports must be the same on all servers
ᵒTarget device communication ports
• 6910-6930
ᵒSOAP Server
• 54321 & 54322
ᵒTFTP & TSB
• 69 & 6969
• Firewall must be configured to allow all these ports
ᵒIf in doubt, allow ANY/ANY to test
• PortFast must be enabled
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9. Plan the farm Provisioning
Services
Farm
License MSSQL Shared
Server Server Storage
Database
Provisioning Servers Provisioning Servers
Site 1 Site 2
Device Device Device Device Device
Collection Collection Collection Collection Collection
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11. Installing PVS
• Server installation
ᵒIf installing a new version of .NET, reboot when prompted
ᵒSpecify the mirror failover if applicable
• Console installation
ᵒNeeds PowerShell 2.0
ᵒIf upgrading, make sure you remove the old version
• Target installation
ᵒMake sure you set the target to boot from network first
ᵒIf imaging fails
• Start with a vanilla install & try to image. Remove any teams
• XenConvert & BNImage are other options
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13. Configuring PVS
• PXE Boot
• Two Stage Boot (TSB)
• Boot Process
• Stores
• IPC Key
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14. PXE Boot
• Must configure DHCP
ᵒ Option 66: IP of PVS Server
ᵒ Option 67: Name of bootstrap (ardbp32.bin)
• Uses TFTP Protocol
• TFTP listens on one NIC only
ᵒ Configure using c:program Filescitrixprovisioning servicestftpcpl.cpl
• TFTP Downloads bootstrap, ARDBP32.BIN
• Other TFTP servers can be used
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15. Two Stage Boot (TSB)
• Used in situations where DHCP or PXE cannot be used
• Uses ISO burned from PVS Server
• Uses a boot strap called tsbbdm.bin
• Listens on NIC configured for streaming in configuration wizard
ᵒ Uses port 6969
• Uses Two Stage Boot service on PVS server
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16. Boot Process
• Target device either uses DHCP to obtain an IP or loads static IP (for TSB)
• Once it has an IP, it will contact the 1st logon server specified in the bootstrap
• The logon server will then create a context for the device, determine which
vDisk the target is assigned and the least loaded server
ᵒ This calculation is based on both RIMS information and the load information in the database
ᵒ RIMS uses notifier and inventory service to update load information
ᵒ If subnet affinity is enabled, this will alter the calculation
• Once a server has been selected, a streaming IP and port will be provided
ᵒ IP information will be in HEX, not decimal
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17. Boot Process (cont)
• Excerpt from log of a target logging on
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18. Boot Process (cont)
• As streaming begins, the boot control device (BCD) is downloaded
ᵒThis phase is referred to as single I/O
• Once Single I/O has finished, we enter the admin phase
ᵒBNIStack handshake
ᵒVdisk configuration (name, mode, write cache type) is requested and provided
ᵒTarget device requests personality string
• HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesBNIStackParameters
- DWORD EnableGetComputerName set to 1
ᵒAD information requested
• Multi I/O phase entered
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19. Stores
• Configure vDisk stores
ᵒCentralised vs Distributed stores
• Centralised
ᵒWorks well in HA environment
ᵒLow storage overhead
ᵒHigh cost
ᵒPotential SAN/Storage issues
• Distributed
ᵒLow implementation cost
ᵒHigh storage overhead
ᵒConfiguration
• IPC is the method for communication between servers for stores
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20. IPC Key
• Defines which NIC to use for IPC communication in a multi NIC environment
ᵒHKEY_LOCAL_MACHINESoftwareCitrixProvisioningServicesIPC
• Reg_sz called IPv4Address with the IP of the NIC for IPC
• Without it, stores, replication, load balancing etc won’t work
• Affects stream service
• Manager key for MAPI works the same way
ᵒHKEY_LOCAL_MACHINESOFTWARECitrixProvisioningServicesManager
• RegSZ called GeneralInetAddr with the IP of the NIC and port
- Eg 10.1.1.2:6909
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23. Troubleshooting PVS
• Stream service troubleshooting
ᵒThe basics
ᵒTracing
ᵒDumps
ᵒLog Analysis
ᵒCommon Issues
• SOAP/Console
ᵒUnable to validate
ᵒConsole timeouts
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24. Stream Service Basics
• The devil is in the detail.
ᵒNetwork Topology
ᵒHardware of target, server & database
ᵒStorage type & location
ᵒWrite cache type
ᵒDatabase location, version, HA
ᵒMSInfo32
• Bluescreens
ᵒCommon Image
ᵒ7B
• What does it mean
• Common causes
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25. Stream Service Tracing
• Network traces
ᵒWireshark trace on the server
ᵒTcpdump on the target
• Make sure you always use –s 0 to not limit capture size
• PVS Logs
ᵒSet to trace level
ᵒC:programdataCitrixProvisioning ServicesLogs
ᵒTarget side logging also
• All logs and traces should be captured simultaneously, while the issue is
happening.
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29. Crash Dumps
• If possible, take it in private mode
• In 2008, it’s possible to redirect to a non system drive
ᵒhttp://support.citrix.com/article/CTX123642
ᵒNot possible on 2003
• Configure citrix symbols
• Live debugging can be done, but difficult without symbols
ᵒUse live debugger to help set it up http://support.citrix.com/article/CTX131945
ᵒCheck for BNIstack being loaded
• !devnode 0 1
ᵒOn 5.6 check for bnns
• !ndiskd.miniports
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30. Common issues
• Imaging
ᵒLet the wizard do the work for you
• Always revert to a clean install as a first step
• If the wizard doesn’t work, pre-create the disk and use xenconvert
• BNImage can work well if all else fails
• Computer Account
ᵒIs AD Management configured on the vDisk? Is Active directory correctly configured?
• GPO disabling password update, and password age
• Reset the password within the PVS console
• Check all relevant Microsoft hotfixes are installed – Google!
• BNDevice 1015 in the event viewer – unable to negotiate a new password
• Trace logs will show you the requests
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31. Performance
• Follow the best practice guide
ᵒhttp://support.citrix.com/article/CTX127549
ᵒhttp://support.citrix.com/article/CTX117374
• Intermediate buffering
ᵒGenerally enabled if free space on target device disk is greater than vDisk, otherwise
disabled
ᵒToggling the state is always worth trying to see the performance impact
• Check interrupt safe mode is not enabled
• Check the network with a network monitor
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32. SOAP & Console
• Console timeout
ᵒThe console timeout can be set in the registry
• Use DWORD ConnectionTimeout in
HKEY_LOCAL_MACHINESOFTWARECitrixProvisioningServices. Default value is 120s
• Can’t communicate with other servers
ᵒCheck IPC and manager keys
• HKEY_LOCAL_MACHINESOFTWARECitrixProvisioningServicesIPCIPv4Address
• HKEY_LOCAL_MACHINESOFTWARECitrixProvisioningServicesManagerGeneralInetAddr
• Mentioned above
• Load Balancing issues
ᵒCheck the StreamProcess & Inventory logs to make sure there are no issues around
RIMS
32 © 2012 Citrix | Confidential – Do Not Distribute
34. About Educate | Guide | Support | Succeed
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35. The desktop virtualization project space with best practice built in.
Check it out
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36. Secrets of the Citrix Support Ninjas
• 40 insider troubleshooting tips
• Covering XenDesktop, XenServer, XenApp and NetScaler
• Citrix Support top engineers
• FREE eBook
• Citrix Auto Support
• Now available!
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Editor's Notes BlockedListenLearnForwardDisabledFrom blocking to listening: 20 secondsFrom listening to learning: 15 secondsFrom learning to forwarding: 15 secondsPortFast dramatically reduces this time. needed for DHCP, DNS & PxE (among others) 192.168.0 = C0A801172.1.2 = AC1210.0. = A0 172.1.2.107 7B =Inaccessable Boot Device At Citrix Services - we’re Citrix consultants, teachers and support engineers and we’re all about one thing: making sure you succeed.With our help, you’ll deploy high-performance, robust virtualization and networking projects, faster – with dramatically lower risk and higher return.The best Citrix architects and administrators are the ones who never stop learning – and Citrix Education is here to help you learn those skills.Citrix Consulting gives you direct access to our most experienced virtualization and networking experts.When it’s complex; when it’s mission-critical; when it’s big; That’s when Citrix consultants can really help.On your virtualization journey, you’ll want always-on support from people who really care about your success.There’s no better insurance for your Citrix investment than with Citrix Support. http://project.citrix.com/?utm_source=auto%2Bsupport%2Bwebinar&utm_medium=email&utm_campaign=Citrix%2BSupport%2BSecrets%2BWebinar%3A%2BProject%2BAccelerator%2BLink%2B2_21_13 Secrets of the Citrix Support Ninjas is a FREE eBook available next week.The eBook contains 40 insider troubleshooting tips for administrators.So the purpose of the eBook is to help administrators like you keep your Citrix deployments on track.We’ve collected some of their best tips and tricks for running robust Citrix environments and packaged them up into a free eBook.In it, you’ll discover some of the little-known tricks that our own support people use every day to tune, tweak, troubleshoot and test Citrix solutions. You may know a few of these tips. But you probably don’t know them all.And – you never know – you might discover just one that will change your life as an administrator.Let me give you a sneak peak now.
