IPDTerminal Services.docx
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IPDTerminal Services.docx
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IPDTerminalServices
InfrastructurePlanning
andDesign
WindowsServer® 2008TerminalServices
Version1.1
Published:
July2008
Updated:
April2009
Forthelatestinformation,pleasesee
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Contents
ThePlanningandDesignSeriesApproach1
Introduction3
TerminalServicesinMicrosoftInfrastructureOptimization4
WindowsServer 2008TerminalServicesDesignProcess5
Step1:
DeterminetheScopeofthePresentationVirtualizationProject10
Step2:
DetermineWhichApplicationstoDeliverandHowTheyWillBeUsed12
Step3:
DetermineWhetherTerminalServicesCanDeliverEachApplication14
Step4:
CategorizeUsers19
Step5:
DeterminetheNumberofTerminalServerFarms20
Step6:
MapApplicationsandUserstoFarms22
Step7:
DesigntheFarm23
Step8:
DetermineWheretoStoreUserData30
Step9:
SizeandPlacetheTerminalServicesRoleServicesfortheFarms33
Step10:
SecuretheCommunications44
Conclusion46
AppendixA:
TheUserandApplicationDataJobAid47
AppendixB:
TheApplicationAnalysisJobAid49
AppendixC:
TheFarmDesignJobAid51
AppendixD:
ServerPerformanceAnalyzingandScaling53
Acknowledgments64
ThePlanningandDesignSeriesApproach
ThisguideisoneinaseriesofplanninganddesignguidesthatclarifyandstreamlinetheplanninganddesignprocessforMicrosoft®infrastructuretechnologies.
Eachguideaddressesauniqueinfrastructuretechnologyorscenario.Theseguidesincludethefollowingtopics:
∙Definingthetechnicaldecisionflow(flowchart)throughtheplanningprocess.
∙Describingthedecisionstobemadeandthecommonlyavailableoptionstoconsiderinmakingthedecisions.
∙Relatingthedecisionsandoptionstothebusinessintermsofcost,complexity,andothercharacteristics.
∙Framingthedecisionintermsofadditionalquestionstothebusinesstoensureacomprehensiveunderstandingoftheappropriatebusinesslandscape.
Theguidesinthisseriesareintendedtocomplementandaugmenttheproductdocumentation.
DocumentApproach
ThisguideisdesignedtoprovideaconsistentstructureforaddressingthedecisionsoractivitiesthataremostcriticaltothesuccessfulimplementationoftheTerminalServicesinfrastructureinWindowsServer®2008.
Eachdecisionoractivityisdividedintofourelements:
∙Backgroundonthedecisionoractivity,includingcontextsettingandgeneralconsiderations.
∙Typicaloptionsortaskstoperformfortheactivity.
∙Referencesectionevaluatingsuchitemsascost,complexity,andmanageabilityoftheoptionsortasks.
∙Questionsforthebusinessthatmayhaveasignificantimpactonthedecisionstobemade.
Table1liststhefullrangeofcharacteristicsdiscussedintheevaluationsections.Onlythosecharacteristicsrelevanttoaparticularoptionortaskareincludedineachsection.
Table1.ArchitecturalCharacteristics
Characteristic
Description
Complexity
Thecomplexityofthisoptionrelativetootheroptions.
Cost
Theinitialsetupandsustainedcostofthisoption.
FaultTolerance
Howthedecisionsupportstheresiliencyoftheinfrastructure,whichultimatelyaffectstheavailabilityofthesystem.
Performance
Howtheoptionaffectstheperformanceoftheinfrastructure.
Scalability
Theimpacttheoptionhasonthescalabilityoftheinfrastructure.
Security
Whethertheoptionhasapositiveornegativeimpactonoverallinfrastructuresecurity.
Eachdesignoptionisevaluatedaccordingtothesecharacteristicsandissubjectivelyratedtoprovidearelativeweightingcomparedwithotheroptions.Theoptionsarenotexplicitlyratedagainsteachotherastherearetoomanyunknownsaboutthebusinessdriverstoaccuratelycomparethem.
Theratingsarerelativeandtaketwoforms:
∙CostandComplexityareratedonascaleofHigh,Medium,orLow.
∙TheremainingcharacteristicsareratedonthescaleinTable2.
Table2.ImpactonCharacteristic
Symbol
Definition
↑
Positiveeffectonthecharacteristic.
→
Noeffectonthecharacteristic,orthereisnobasisforcomparison.
↓
Negativeeffectonthecharacteristic.
Thecharacteristicsarepresentedeitherintwo-columnorthree-columntables.Atwo-columntableisusedwhenthecharacteristicappliestoalloptionsorwhentherearenooptionsavailable—forexample,whenperformingatask.
Athree-columntablepresentsanoption,thedescription,andtheeffect,inthatorder,forthecharacteristic.
WhoShouldUseThisDocument
Thisguideiswrittenforinformationtechnology(IT)infrastructurespecialistswhoareresponsibleforplanninganddesigningaTerminalServicesimplementationinWindowsServer2008toservedesktopsorapplicationstodevicesrunningtheRemoteDesktopClient(RDC)software.Thesespecialistsincludeconsultants,internalITstaff,andotherswhoareconcernedwithdesigndecisionsrelatingtovirtualization.
ThecontentinthisguideassumesthatthereaderisfamiliarwithTerminalServicestechnologyandisplanninganimplementationofTerminalServicesservers,farms,orbothinWindowsServer2008.
Introduction
ThisguideleadsthereaderstepbystepthroughtheprocessofplanningaWindowsServer 2008TerminalServicesinfrastructure.Theguideaddressesthefollowingfundamentaldecisionsandtasks:
∙IdentifyingwhichapplicationsaretobedeliveredbyTerminalServicesanddeterminingwhetherTerminalServicesistherightapproachtouse.
∙DeterminingtheresourcesneededtoemployTerminalServicestoservetheselectedapplications.
∙Designingthecomponents,layout,security,andconnectivityoftheTerminalServicesinfrastructure.
Beforestartingthetechnicaldesign,it’sveryimportanttofullyunderstandthebusinessobjectivesfortheproject:
∙Whatbenefitsdoesthebusinessexpecttoachievethroughtheuseofpresentationvirtualization?
Presentationvirtualizationusescentralizedsystemstohostmultipleusersessions,andallprocessingisdoneonthosehostsystems.Theusersessionsareisolatedfromeachother.Onlythepresentationinformation,suchaskeyboardandmouseinputs,andvideoupdatesaresentbetweentheclientandthehostsystem.TheclientcanbeafullWindows-basedworkstationoraWindows-basedterminaldevice.
∙Whatisthevalueofthosebenefitsand,therefore,thecostcaseforusingTerminalServicestodeliverthosebenefits?
∙Isthecostjustificationjointlyenteredintobymorethanonebusinessgroup,andifso,dotheydependonthesuccessoftheprojectfortheirrelationshipwitheachother?
ThebusinessobjectivesshouldbeprioritizedrightatthestartoftheprojectsothattheyareclearlyunderstoodandagreeduponbetweenITandthebusiness.ThisisbecausesomeapplicationswillnotlikelybeimmediatelysuitedtodeliverybyTerminalServices.Thosechangeswillincurcostand,beforeembarkinguponthem,thisshouldbefedbacktothebusinesssothattheadditionalcostscanbeunderstoodandthebestbusinessdecisionarrivedat.
Assumptions
ThecontentinthisguideassumesthatthereaderisfamiliarwithTermin
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