What's New in Exchange Server 2013 _ Exchange Server 2013 Content From Windows IT Pro
6
Jan 22, 2013 Tweet COMMENTS 0 Where experts and professionals share insights and inspirations to grow business and build careers What's New In Exchange Server 2013 Architectural changes and brandnew features are hallmarks of the newest release by Paul Robichaux Microsoft recently released Exchange Server 2013, labeling it "the new Exchange." (This interesting branding decision implicitly labels all other versions of Exchange as "old," with all the negative connotations that label carries.) Understanding what's new in Exchange 2013 requires us to dig into the architectural and feature changes that Microsoft has made some (but not all) of which the company is touting heavily. Architectural Changes If you remember Exchange Server 2003, then the major architectural change in Exchange 2013 will seem very familiar. There are now only two roles: the Mailbox server role and the Client Access server role. This setup is essentially the same as the frontend/backend architecture in Exchange 2003, although there are major implementation differences. Microsoft decided to split the roles in this way to dramatically simplify implementation at large scales. Tight coupling between the server roles no longer exists: The Client Access server role doesn't keep any state or session data and can be upgraded (or rebooted) independently of the Mailbox server role, and vice versa. This change has several interesting implications: email address Country Enter your email above to receive messages about offerings by Penton, its brands, affiliates and/or third party partners, consistent with Penton’s Privacy Policy. RS fee Fo us on Fo on Tw W on Lin Sign up for Exchange & Outlook newsletter. Windows IT Pro Community Featured Products PowerShell for Exchange Administrators Presented by Steve Goodman Wednesday, May 27th Having a good understanding of... Breaking Batch: Leave Batch Behind and Switch to PowerShell Presented by Bill Stewart Thursday, June 25th Now that PowerShell is built into Windows... Windows 10 Technical Deep Dive Presented by Johan Arwidmark Tuesday, June 30th Join Johan Arwidmark for this 3hour... VIEW CATALOG VIEW SHOPPING CART Windows Forums The Windows IT Pro forums are moving to myITforum.com! Get answers to questions, share tips, and engage with the IT professional community. HOME > EXCHANGE SERVER > EXCHANGE SERVER 2013 > WHAT'S NEW IN EXCHANGE SERVER 2013 Follow 5 Followers 1157 Articles 82 Comments SHARE 0 Recommend IT/Dev Connections Forums Store Twi Fac Goo Lin RSS Windows Exchange Server SharePoint Virtualization Cloud Systems Management Training InfoCenters Windows IT Pro REGISTER LOG IN
-
Upload
karan-mishra -
Category
Documents
-
view
217 -
download
1
description
What's New in Exchange Server 2013
Transcript of What's New in Exchange Server 2013 _ Exchange Server 2013 Content From Windows IT Pro
-
5/23/2015 What'sNewInExchangeServer2013|ExchangeServer2013contentfromWindowsITPro
http://windowsitpro.com/exchangeserver2013/whatsnewexchangeserver2013 1/6
Jan22,2013
EMAILTweet COMMENTS 0
Whereexpertsandprofessionalsshareinsightsandinspirationstogrowbusinessandbuildcareers
What'sNewInExchangeServer2013Architecturalchangesandbrandnewfeaturesarehallmarksofthenewestrelease
byPaulRobichaux
MicrosoftrecentlyreleasedExchangeServer2013,labelingit"thenewExchange."(ThisinterestingbrandingdecisionimplicitlylabelsallotherversionsofExchangeas"old,"withallthenegativeconnotationsthatlabelcarries.)Understandingwhat'snewinExchange2013requiresustodigintothearchitecturalandfeaturechangesthatMicrosofthasmadesome(butnotall)ofwhichthecompanyistoutingheavily.
ArchitecturalChanges
IfyourememberExchangeServer2003,thenthemajorarchitecturalchangeinExchange2013willseemveryfamiliar.Therearenowonlytworoles:theMailboxserverroleandtheClientAccessserverrole.
Thissetupisessentiallythesameasthefrontend/backendarchitectureinExchange2003,althoughtherearemajorimplementationdifferences.Microsoftdecidedtosplittherolesinthiswaytodramaticallysimplifyimplementationatlargescales.Tightcouplingbetweentheserverrolesnolongerexists:TheClientAccessserverroledoesn'tkeepanystateorsessiondataandcanbeupgraded(orrebooted)independentlyoftheMailboxserverrole,andviceversa.Thischangehasseveralinterestingimplications:
emailaddress
Country
EnteryouremailabovetoreceivemessagesaboutofferingsbyPenton,itsbrands,affiliatesand/orthirdpartypartners,consistentwithPentonsPrivacyPolicy.
RSSfeed
Followuson
FollowonTwitter
We'reonLinked
SignupforExchange&Outlooknewsletter.
WindowsITProCommunity
FeaturedProducts
PowerShellforExchangeAdministratorsPresentedbySteveGoodmanWednesday,May27th
Havingagoodunderstandingof...
BreakingBatch:LeaveBatchBehindandSwitchtoPowerShellPresentedbyBillStewartThursday,June25thNowthatPowerShellisbuiltintoWindows...
Windows10TechnicalDeepDivePresentedbyJohanArwidmarkTuesday,June30thJoinJohanArwidmarkforthis3hour...
VIEWCATALOG VIEWSHOPPINGCART
WindowsForums
TheWindowsITProforumsaremovingtomyITforum.com!Getanswerstoquestions,sharetips,andengagewiththeITprofessional
community.
HOME > EXCHANGE SERVER > EXCHANGE SERVER 2013 > WHAT'S NEW IN EXCHANGE SERVER 2013
Follow 5 Followers 1157 Articles 82 Comments
SHARE 0Recommend
IT/DevConnections Forums Store
TwitterFacebookGoogle+LinkedInRSS
Windows ExchangeServer SharePoint Virtualization Cloud SystemsManagement Training InfoCentersWindowsITPro
REGISTER LOGIN
-
5/23/2015 What'sNewInExchangeServer2013|ExchangeServer2013contentfromWindowsITPro
http://windowsitpro.com/exchangeserver2013/whatsnewexchangeserver2013 2/6
BrandNewFeatures
Asistypicalforanewreleaseofamajorproduct,Exchange2013isfullofnewfeatures.Knowingwhattolabel"new"cansometimesbedifficultbecauseofMicrosoft'shabitofmakingmajorenhancementstoexistingfeatures,butseveralgenuinelyfreshfeaturesareincluded.Themostsignificantoneisarguablythenewmanagedavailabilityfunctionality.MicrosoftdescribesmanagedavailabilitythuslyontheExchangeTeamBlog:
ManagedavailabilityisamonitoringandrecoveryinfrastructurethatisintegratedwithExchange'shighavailabilitysolution.Managedavailabilitydetectsandrecoversfromproblemsastheyoccurandastheyarediscovered.
Thisdescriptionneatlycapturesthemajorpointsofmanagedavailability:Itfocusesondetectingproblemsthattheenduserwillnoticeandthenrepairingthemautomaticallywheneverpossible.TheExchange2013managedavailabilityimplementationaccomplishesthistaskbyperformingseveralkindsofautomatedchecksthatprobevariouspartsoftheinfrastructure.Basedontheresultsofthesetests,avarietyofautomatedresponderscantakeaction.Theseactionscanrangefromrestartingtheresponderservice,totakingaprotocolonamachineoutofservice(whichallowsclienttraffictobesenttoanothermachinerunningthesameprotocol),toforcingaserverrebootandrestart.There'salsotheescalateresponder,whosejobitistofireaneventthattriggersspecialbehaviorinSystemCenterOperationsManagerorothermonitoringsoftware.Inthisway,Exchangehasacustomizedmethodforindicatingahighpriorityfailurethatrequireshumanintervention.ManagedavailabilityrepresentsanambitiouseffortbyMicrosofttobringhighscale,datacenterstylemanagementtoExchange.Thiseffortoffersalotofpotential,althoughI'mreservingjudgmentonitsworthuntilIseeitproveninthefield.
Anothermajorchangeistheavailabilityofasingleintegratedediscoveryexperience.YoucannowperformdiscoverysearchesthatincludeExchangemailboxesandpublicfolders,archivedMicrosoftLyncconversations,andmaterialthat'sstoredinMicrosoftSharePointfromasingleSharePointbasedinterface.AlthoughthisfeaturerequiresthatyoudeploySharePoint2013,organizationsthatneedtoperformdiscoverysearcheswillfindthisfeaturevaluablebecauseitenablesselfservicediscoverysearchesforuserswithappropriatepermissions.
Exchange2013alsoincludesagroupoffeaturesthatarelumpedundertherubricofdatalossprevention(DLP).Thegoalofthesefeaturesistoreducetheriskthatyourorganizationwillcommitorsufferbreachesofsensitivedatasuchaspersonallyidentifiableinformation(PII)ofcustomers,datathatmustbeprotectedunderregulationssuchastheUSHealthInsurancePortabilityandAccountabilityAct(HIPAA)orEuropeanUnionDataProtectionDirective(EUDPD),ordatathatyoujustdon'twanttobedisclosed.DLPfeaturesincludearobustsetoftransportruleliketoolsforscanningmessagesforsensitivedata,apredefinedsetofpoliciesforcommonregulatory
TheExchange2013ClientAccessserverrole(formerlycalledtheClientAccessFrontEndinMicrosoftinternaldocuments)becomesessentiallyasupersmartproxythatnolongerneedstomaintainstateoraffinity.MuchofthecomplexityofconfiguringtheExchange2010ClientAccessserverrolevanishes.
Loadbalancingiscompletelydifferent.Withnorequirementforaffinity,loadbalancersthatworkatLayer4(thenetworklayer)oftheOSImodelcanbeused.(Therearestillcasesinwhichitmakessensetouseapplicationawareloadbalancersthatapplygreaterintelligencetodecidingwhenandhowtodistributeloadbetweenservers.)
RemoteProcedureCall(RPC)formailboxaccessisdead.YoucanstilluseRPCoverHTTPSecure(HTTPS),buttheRPCClientAccessserviceisnolongerpartoftheequation.ThischangeenablestheuseofHTTPSbasedloadbalancing,withouttheExchange2010requirementforseparatenamespacesorcertificates.
TheHubTransportserverroleisgone,itsresponsibilitiessplitbetweentheClientAccessserverandMailboxserverroles.GiventhatfewExchange2010siteshadcombinedtheMailboxandHubTransportroles,thischangeisn'thuge.
NewservicesrunontheMailboxserver,soyoumightneedtoreexaminethescalingandsizingdecisionsthatyoumadeforExchange2010deployments.
-
5/23/2015 What'sNewInExchangeServer2013|ExchangeServer2013contentfromWindowsITPro
http://windowsitpro.com/exchangeserver2013/whatsnewexchangeserver2013 3/6
requirements,andtoolsforcustomizingtheincludeditemsorbuildingyourown.
ItwillbeinterestingtoseewhichofthesefeaturesdriveExchange2013adoption.Somearelikelytobeofinteresttoasmallnumberoflargecustomers,whereasafewothersseemclearlytargetedatabroaderaudience.
MailboxServerChanges
TheMailboxserverroleremainsatthecoreofExchange.Forthisrelease,MicrosoftrewrotetheExchangeInformationStoreservice(store.exe)completelyinmanagedcode,takingadvantageofthe.NETcommonlanguageruntime(CLR)memorymanagementsupport.
TheinternalarchitectureoftheInformationStoreservicehaschangedagooddealaswell.There'snowanewservice,theExchangeReplicationservice,whichcontrolsfailoverandswitchoveroperationsanddatabasemountsanddismounts,plusaserviceprocesscontrollerthatmanagesthedatabaseworkerprocesses.Eachdatabasenowhasitsownworkerprocess,sofailureoftheInformationStoreserviceprocessshouldaffectonlyonedatabaseatatime.Anadditionalrelatedchangehasbeensomewhatcontroversial:Exchange2013isnowlimitedtoamaximumof50databasesperserverinsteadof100.ItremainstobeseenhowmanycustomersthischangeaffectsandwhetherMicrosoftwillconsiderliftingthelimitinafuturerelease.
ThesechangesarecoupledwithseveralaggressiveoptimizationstotheStoreschemaitself.Microsoft'sgoalforthisreleasewastoreduceoverallI/Ooperationspersecond(IOPS)fromExchange2010byasmuchas50percentwhilesimultaneouslyenablingthewidespreaduseofdatabasesupto100GB.Todothis,MicrosoftessentiallytradedoffCPUandRAMusageforIOPS.ByincreasingthedegreeofphysicalandlogicalcontiguityintheExchange2013schema,fewerlargeI/OswillberequiredbutanincreasedamountofCPUwillbeneededtohandlethem.MicrosoftisexpectedtoupdatetheExchangeMailboxRoleCalculator(familiarfrompreviousversionsofExchange)totakethesechangesintoaccount.
TheExchange2013Storefullysupportsmixingmultipledatabasespervolume.Forexample,youcanputoneactivedatabaseandmultiplepassivedatabasesonasingledisk.With8TBdrivesexpectedtobeavailablesoon,andwiththeexistingrecommendationof2TBasamaximumsizeforExchangedatabases,leveragingboththestorageandIOPSpotentialoflargedisksbycombiningdatabasesmakessense.ThenewStorealsoimplementsanewAutoReseedfeature.Thisfeaturecanimmediatelycreateanewpassivereplicaofadatabaseonafaileddiskbyusingasparediskontheserver,quickly(andautomatically)replacingthefailedcopytomaintainthecorrectnumberofcopiesinthedatabaseavailabilitygroup(DAG).
InoneofthemostsurprisingchangestoExchange2013,Microsofthascompletelyreimplementedpublicfolders.Thenew"modern"publicfoldersystemreplacestheoldmultimastermodel,whichwasdependentonthefinickysystemofpublicfolderreplicationintroducedinExchange4.0.Thenewsystemismuchsimpler:Publicfoldersessentiallylookandactlikedatabases.PublicfolderdatabasesarestoredinDAGs,justasmailboxesare,soyouprotectpublicfoldersagainstoutagesbyaddingmultiplereplicasofagivenpublicfolderdatabasetoaDAG.Clientsalwaysconnecttotheactivecopyofthepublicfolder,whichmighthaveimplicationsforscalabilityinsomeenvironments.
ClientAccessChanges
Aspreviouslymentioned,thenewClientAccessserverroleinExchange2013nolongerrendersdatafortheclient.TheonlythingitdoesisperformproxyconnectionsfromtheclienttotheappropriateMailboxserver.ThisproxyonlydesigneliminatestheneedfortheClientAccessservertomaintainaffinityorstatewithclients,whichinturnenablesamuchbroaderrangeofpotentialloadbalancingsolutions.DNSroundrobinandWindowsNetworkLoadBalancing(NLB)arebothfullysupported,althoughneithercanrecognizethepresenceofserverfailures.
-
5/23/2015 What'sNewInExchangeServer2013|ExchangeServer2013contentfromWindowsITPro
http://windowsitpro.com/exchangeserver2013/whatsnewexchangeserver2013 4/6
ClientconnectionscanuseIMAP,POP,orExchangeWebServices(EWS),buttheynolongeruseMessagingAPI(MAPI)RPCs.Instead,allMicrosoftOutlookclientsmustnowconnectbyusingtheOutlookAnywherefeature(anothernameforRPCoverHTTPS),whichwrapsMAPIRPCsinsideHTTPSpackets.Thischangeenablesclientstorequestmailboxconnectionsusingamailboxgloballyuniqueidentifier(GUID)plustheuserprincipalname(UPN)suffix,withoutanyincludedreferencetoaMailboxserver'sFullyQualifiedDomainName(FQDN).MailboxesaremuchmoreportablebecausetheClientAccessserveranditsclientsnolongerneedtoknoworcareaboutMailboxservernames.ThecomplexExchange2010systemofinterrelatednamespaces(andcertificatestosecurethem)isgone,replacedwithadramaticallysimplerimplementation.TofacilitatetheuseofOutlookAnywhereinternally,theClientAccessserverrolenowsupportsanewinternalhostname(andmatchingauthenticationmethod),whichwillbeused(ifdefined)forclientsontheLAN.
AnotherpleasantsideeffectofthechangetotheClientAccessserverdesignisthatcrosssiteaccessismuchsimpler.ClientsconnecttowhicheverClientAccessserverisconvenient,andtheClientAccessservercanperformHTTPredirectsasnecessarytofindthecorrectMailboxserveracrossActiveDirectory(AD)sites.
TheservicesthattheClientAccessserverofferstoclientshavechangedquiteabitaswell.OutlookWebApp(OWA)2013iscompletelyrewrittenandincludessomecompellingnewfeatures,suchasgreatlyimprovedsupportformobiledevicessuchasAppleiPads.OWA2013canrunofflineonsupportedbrowserscurrently,GoogleChrome,MicrosoftInternetExplorer(IE)10,andAppleSafari5.x/6.xonMacOSX.
TransportChanges
Thetransportprocesshaschangedsignificantlybecauseofthetworolearchitecture.WhereasExchange2007andExchange2010hadaseparateHubTransportrole,Exchange2013doesnot.TheClientAccessserverrolehoststhenewFrontEndTransportservice,whichhandlesallinboundandoutboundSMTPtraffic.Theservicedoesn'tperformanycontentfiltering,althoughitdoesprovidefilteringbasedonconnection,senderorrecipientidentity,andprotocolbehavior.TheFrontEndTransportservice'sroleisrathertoactasacentralized,loadbalancedingressandexitpointforallSMTPtraffic.BearinmindthattheClientAccessserverisn'tintendedtoreplacetheEdgeTransportrole,sodeployingitinaperimeternetworkisunsupported.
ThenewFrontEndTransportservicehasacompletelynewapproachtomailacceptanceanddelivery:Ithasnopermanentqueues.WhenanewSMTPconversationisopened,theserviceacceptstheconnection,performsfilteringbasedontheSMTPenvelopedata,andthendeterminestheroutetothe"best"Mailboxserverbeforestartingthedeliveryprocess.TheMailboxserverisresponsibleforacceptingandqueuingthemessage.IftheFrontEndTransportservicecannotconnecttoaMailboxserver,oriftheserverdoesn'tacceptthemessage,thentheFrontEndTransportservicereturnsSMTPerror421tothesender,indicatingatransientfailurethatmustberetriedlater.ThisapproachdrasticallysimplifiestheFrontEndTransportserviceatthecostofmovingthequeuing,redundancy,anddeliverylogicovertotheMailboxrole.
TheMailboxserverrunsthreenewtransportrelatedservices:
ThedivisionoflaborbetweentheClientAccessserverandMailboxTransportservice
TheMailboxTransportservicedoesmuchofwhattheformerHubTransportroledid.Theprocessofmailboxtransportisnowstateful,sotheMailboxTransportservicemaintainsstateinformationabouteachmessageasitpassesthroughtheengine.Mailboxtransportperformspolicyenforcement(includingenforcingsizelimits)andprovidesqueuingformessages.ThisistheonlymailboxservicethatcommunicateswithFrontEndTransportservice.
TheMailboxTransportDeliveryserviceacceptsmailfromtheMailboxTransportserviceanddeliversittothemailboxdatabase.
TheMailboxTransportSubmissionserviceretrievesmailfromthemailboxdatabaseandsubmitsittotheMailboxTransportserviceforprocessing.
-
5/23/2015 What'sNewInExchangeServer2013|ExchangeServer2013contentfromWindowsITPro
http://windowsitpro.com/exchangeserver2013/whatsnewexchangeserver2013 5/6
Tweet
deliversessentiallythesamehighavailabilityfortransportaswehadinExchange2010,butit'simplementedverydifferently.TheMailboxTransportservicepersistseverysubmittedmessagebeforethemessageisacknowledgedtothesender.IftheMailboxTransportservicedoesnotorcannotacceptthemessage,thentheFrontEndTransportservicesendsa421errortothesenderandmessagedeliveryisreattemptedlater.Messagesthataresuccessfullysubmittedtothetransportsystemaremaintaineduntiltheirfinaldelivery,andresubmissionofmessagesthatcouldn'tbedeliveredbecauseofthelossofatransportdatabaseormailboxdatabasefailoverandswitchoverisautomatic.ThisnewbehaviorisknownasSafetyNet,andit'scomplexenoughthatitwillprobablybethesubjectoffutureWindowsITProarticlesandExchangeTeamBlogposts.
Interestingly,Microsoftisn'tcurrentlyshippinganEdgeTransportroleinExchange2013andhasn'tpubliclyannouncedwhetherorwhenitwilldoso.RelativelyfewcustomersusetheEdgeTransportrole,soMicrosoftmighthavechosentowaitorevenbaketheEdgefunctionalityintoafutureversionofanEdgenetworkproductsuchasitsUnifiedAccessGateway(UAG)Serverline.
UnifiedMessagingChanges
UnifiedMessaging(UM)isperhapstheareainwhichfunctionalityhaschangedtheleastinExchange2013.TheUnifiedMessagingroleisnowhostedontheMailboxserver.TheClientAccessserverrunstheUnifiedMessagingCallRouterservice,whichacceptsincomingcallsandredirectsthemtotheappropriateMailboxserver.TheMailboxserveritselfisresponsibleforhandlingallinteractionwiththecaller,includingplayingavoicemailgreetingorAutoAttendantmessageandrecordingthecaller'svoicemail.
TheremainingUMchangesareallenhancements.Forexample,theVoiceMailPreviewfeatureismoreaccurate.(AlthoughMicrosoftstilldoesn'tclaimthatitis100percentaccurate,norisitintendedtobe.)UMcannowresolvecontactsagainstallpersonalContactsfoldersinauser'smailbox.Therefore,callerIDresolutionnowworkswithexternalcontactsfromFacebook,LinkedIn,andotheraggregatedsources.LiketheotherExchange2013roles,theUnifiedMessagingrolenowfullysupportsIPv6.Apartfromthat,usersandadministratorswillprobablynotnoticeanymajordifferencesinhowUMbehaves.AdministratorswillnotetheadditionofafewnewExchangeManagementShellcmdletsformanagingtheUMservicesandcallroutersettings.
AWarning
OnemajorissuedoesfacesitesthatwanttodeployExchange2013:ItcannotyetcoexistwithExchange2010onpremises.Exchange2010coexistencerequiresExchange2010SP3,whichMicrosofthasannouncedbutnotreleasedasofthiswriting.GiventhetroubleswithExchange2010rollupsduring2012,anyprospectivedeploymentofExchange2010SP3shouldbeapproachedcarefullyandwithathoroughtestingplan.ThenecessarychangestosupportcoexistencearealreadydeployedonExchangeOnline,soifyou'rewillingtomoveyourmailboxestoMicrosoftOffice365,youcandeployExchange2013withoutfurtherdelay.Thisdelayisn'tallbad,though,becauseitgivesyoutheopportunitytotestExchange2013inalabenvironmentandgetabettersenseofitsnewfeaturesandbehaviors.ItwillcertainlybeinterestingtoseehowcustomersadoptExchange2013andhowMicrosoftupdatesitsproductguidanceanddocumentationtoreflectthelessonslearnedfromthatadoption.
PleaseLogInorRegistertopostcomments.
Related Articles
What'sNewInExchangeServer2013
WhatsNewinExchange2013ArchivingandeDiscovery
WhatsNewinExchange2013ArchivingandeDiscovery
SHARE 0Recommend
-
5/23/2015 What'sNewInExchangeServer2013|ExchangeServer2013contentfromWindowsITPro
http://windowsitpro.com/exchangeserver2013/whatsnewexchangeserver2013 6/6
Site FeaturesContactUs
Awards
CommunitySponsors
MediaCenter
RSS
Sitemap
SiteArchive
ViewMobileSite
PentonPrivacyPolicy
TermsofService
Advertise
Follow Us
Search WindowsITPro.com
DevPro SharePointPro SQLServerPro SuperSiteforWindows IT/DevConnections myITforum
Copyright2015Penton
WindowsITPro.com
Windows ExchangeServer SharePoint Virtualization Cloud SystemsManagement
Related Sites
MicrosoftOfficeFilterPack2013nowavailable,butit'snotneededbyExchange2013
Office365forBusiness:WhattoExpectfor2013
