HYBRIDIT-ANECOSYSTEMFORGETTINGTHEBESTOUTOFBOTHWORLDS

OliverRaff,GTSExecu3veITArchitectFlorianGraf,GTSCloudMigra3onArchitect

ClausSchrøder-Hansen,GBSApplica3onArchitectCleaZolotow,GTSDis3nguishedEngineer

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ABSTRACT

HybridITprovidesamanagedecosystemofproviders,resources,andtools.SuccessfulHybridITdeploymentrequiresmanagingandop<mizingsystemsofrecordandsystemsofengagementwhileensuringnewbusinessrequirementscanbemet.ThispaperprovidesanoverviewofhybridIT,brokeragesystemexamples,andbusinesslinkage.Seriesziscoveredaswellasmidrangesystems.Specificcomponentsforthetransi<ontoanddeliveryofahybridcloudareexplored.Finally,bestprac<cesforhybridcloudusabilityu<lizingaggrega<on,integra<on,andcustomiza<oncapabili<esareoutlined.

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Introduc<on

•  ThestrategyforenterpriseITwillbetoenabledifferentcloudenvironmentsacrossthecomputelandscapeandgraduallyenabletheenterpriseapplica3onstotakeadvantageofthisdisparateenvironmentviaopenAPIinterfacesandmanagement.

•  HybridITisanend-to-endplaQormforconsumingITservicessecurelyandconveniently.Byu3lizingstandardinterfaces,servicescanbecombinedandtreatedasblackboxbytheapplica3onowner,allowinginfrastructure,database,orapplica3onservicestobeconsumedas-needed.Here,HybridITrequiresbrokerageasacentralplaQorm,withagovernanceanddecisionframeworkforconsumingservices.

•  ThisenvironmentnaturallyleadstoITaaS,whichisthetransforma3onpost-technologyintoabusinessservice–u3lizingaserviceandconsump3onmodelforthebusinessusersoftheenvironment.

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Whatisit?HybridCloud:“Acloudcompu3ngservicethatiscomposedofsomecombina3onofprivate,public,andcommunitycloudservices,fromdifferentserviceproviders,forcapacityorcapability.“HybridIT:“AtrustedbrokerandproviderforallITServices–includingservicesprovidedbytheITorganiza3onandexternalproviders–usingbothcloudcompu3ngstylesandtradi3onalstylesofcompu3ng.”

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SystemsofRecord/Engagement/Interac<on

•  Noteherethattheemphasisisontheconnec3vitybetweenthedifferentareasofCloud.

•  Forexample,anorganiza3onmayhavepubliccloudinseveralflavors(IaasandPaas)aswellasprivatecloudfortheirXaasaswellastheirlegacysystemsofrecord.Thishasgivenrisetoanewtechnology,systemsofinterac3on–thisisthegluethatkeepallthesesystemstalkingtoeachother,governedbythebrokerandorchestra3oncomponents(Bruce,2016).

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FlexibilityintheHybridCloudforBusinessRequirements

•  TheimportantconcepttorememberaboutITaaSisthatisisn’tatechnologyjourney,likethemovetovirtualiza3on.It’saboutatotalITtransforma3ontobuildaserviceandconsump3onmodelpalatabletoyourusers,whethercloudornot(EMCCorpora3on,2012).

•  Thisvisionisenabledbybrokerageservicesthatstretchacrossthevarioushybridandcloudenvironmentstoprovideasinglepaneofglassenvironment.

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FlexibilityintheHybridCloudforBusinessRequirements

•  Thefigureaboveshowsamodular,openandintegratedapproachfordesigning,buildingandrunningyourdigitalbusinesssolu3onswithflexibilityandcontrol.

•  Thesetransforma3onscanhappenfromalegacygovernancesystemtransformedintoacloudandre-transformedintoITaaS,providingmarketcompe33onandaninternalsolu3onfordarkcloudenvironments(Bils,2013).

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HybridCloudBrokerageServices

•  AggregateprivateandpublicITservicesintoacatalogtocentralizethecomparisonandpurchaseofservicesfrommul3pleproviders.

•  Integratemul3pleITservicesfromatechnical(performance,monitoring,op3miza3on)andadministra3on(cost,metering,repor3ng)standpoint.

•  CustomizeITservicesthroughprofessionalservicesorcustomdevelopment.•  ComparetheITservicesprovidedintheservicecatalogbyvariousdimensionslikedeployment

model,ServiceLevelAgreement,pointofdelivery(loca3onofdatacenter)andprice

Hybrid Cloud Brokerage Services

Traditional IT

PrivateCloud

SaaS

PaaS

Broker

Serv ice Discov ery

Cost / Inv oice Aggregation

Prov ider Mgmt

Serv ice Of f ering Mgmt

Orchestration & PoliciesPricing &

Fulf illment Mgmt

IaaS

Resource Mgmt

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SerieszIntegra<onwithHybridCloud

•  Likeanyotherhypervisorandopera3ngsystem,OpenStackcanbeusedasanopenintegra3onpointforzLinuxintheCloud.OpenStackisafullyopensourcedsoiwarethatusedtoconnectvariouscloudmanagementsystems,suchasIBM’sCloudOrchestrator(ICO),tozLinuxvirtualizedsystemsmanagedbyhypervisors.

•  Someoftheinterfaceop3onsincludedashboardmanagement,APIintegra3on,orinthecaseofICO,RESTfulAPIs.

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Transi<onintoHybridCloud

•  Therearemanydifferentusecasestostarttransi3oningintothecloud.Mostcustomerswon’thavethepossibilitytostartfromscratchwithnewworkload,thereforetheyarelookingintoop3onstoanalyzetheirexis3ngworkloadandmigrateitseamlesslyintotheCloud.

•  TheHybridITBrokerconsidersthetypeofworkloadandproposesthebestfijngtargetcloud(tradi3onal,privateandpubliccloud)aswellasmigra3onscenario.Thefollowingpictureoutlinesthemostcommoncloudusecasesandtheirmigra3onscenarios.

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SimpleWorkloadDiscoveryandMigra<onExecu<on

•  IndependentWorkloadViewassumesworkloadwithcommonimagescanbeseparatedi.e.eachworkloadisconsideredonit’sown.Thisresultspoten3allyinsplijngimagesusedbymorethanoneworkload

•  CombinedWorkloadViewassumesaworkloadisonlymigratedtothecloudifallitsimagescanbemigrated.Workloadswithcommonimagesareonlymigratedtogether,i.e.ifoneworkloadcannotbemigrated,neithercananyoftheworkloadsthatsharethecommonimagewiththisworkload.

Intheself-servicefashion,outsourcedcustomerswouldliketouseanintegratedportalasmainpointofentryfortheirworkloaddiscoveryandmigra3on.Inasimpleworldthecustomerswouldbegiventheabilitytouploadaflat-filebasedimagefromhisworkload.IndustrystandardwouldbetheOpenVirtualiza3onFormat(OVF),whichsupportsV2VfromdifferenthypervisorsplusalsoP2Vtransforma3ons.TheOVFcontainsthemetadatainforma3onoftheVMplustheactualvirtualdisks.Byanalyzingthemetainforma3on(VMvirtualhardwaresizingplusplaQorm)andtheactualcontentintheVDISKtheHybridITBrokerwouldhavetheabilitytomakeajus3fieddecisionwhatthemostsuitabletargetplaQorm(Graf,2015).

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ArchitecturalpaQernsforhybridservicemanagement

•  Thefollowingdiagramistakenfromarealcustomerdeploymentandshowstheintegratedpanernforservicemanagementincludingconfigura3onmanagement,andeventmanagement.Inthiscaseanon-premiseprivatecloudmanagedbyacloudproviderisintegratedwiththecustomer’sserviceandsystemsmanagementenvironmentofthetradi3onalIT.

•  Addi3onally,anon-premisemanagementtoolagentisdeployedonthecloudsystemsforlicensemanagementfollowingtheon-premisepanern.

Cloud Service provider On-premise

Dual pattern• Use ISM tools and interfaces on-premise

and provided by cloud service provider• Integrate them manually or at process level

documenting cross management best-practices and procedures

Service Mgmt environment

Managed-workload

Service MgmtEnvironment (*)

Managed-workload

Customized ISM processes

On-premise pattern• Extend on-premise management tools and

agents to manage also workload on cloud• Do not leverage built-in service mgmt

capabilities from cloud provider

Service Mgmt environment

Managed-workload

Service MgmtEnvironment (*)

Managed-workload

Integrated pattern• Leverage both on-premise and built-in

cloud ISM capabilities and tools• Use APIs to get mgmt data from cloud and

feed to on-prem mgmt tools and processes

Service Mgmt environment

Managed-workload

Service MgmtEnvironment (*)

Managed-workload

Customized ISM processes

APIs

(*) on-premise, on SaaS or outsourced

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Cloud Service provider On-premise

Dual pattern• Use ISM tools and interfaces on-premise

and provided by cloud service provider• Integrate them manually or at process level

documenting cross management best-practices and procedures

Service Mgmt environment

Managed-workload

Service MgmtEnvironment (*)

Managed-workload

Customized ISM processes

On-premise pattern• Extend on-premise management tools and

agents to manage also workload on cloud• Do not leverage built-in service mgmt

capabilities from cloud provider

Service Mgmt environment

Managed-workload

Service MgmtEnvironment (*)

Managed-workload

Integrated pattern• Leverage both on-premise and built-in

cloud ISM capabilities and tools• Use APIs to get mgmt data from cloud and

feed to on-prem mgmt tools and processes

Service Mgmt environment

Managed-workload

Service MgmtEnvironment (*)

Managed-workload

Customized ISM processes

APIs

(*) on-premise, on SaaS or outsourced

Conclusion•  Herewehaveshownhowtoenabledifferentcloud

environmentsacrossthecomputelandscapetoallowenterpriseapplica3onstotakeadvantageofHybridIT’sabilitytou3lizeAPIinterfaces.Wecannowu3lizestandardinterfacessuchasRESTandJSONandallowIaaS,Saas,andPaaStobecombinedandconsumedasneeded.

•  Migra3onintoandbetweentheseenvironmentscanbeautomatedandtransi3onalandtransforma3onisactuallyneededtocleanlegacyinstalls.TechnologiescanbeusedforametadatainputtotheBroker.

•  Servicedeliveryprovidesunparalleledintegra3onopportuni3esasthegoalistoprovideasinglepaneofglassfortheSLAsandQoS.Leveraging(andunderstanding)thesystemmanagementstacksofthevendorsanotherlargejobfortheBroker.EverythingrevolvesaroundtheBrokerwithagovernanceanddecisionframeworkforconsumingservices.

•  ThisenvironmentleadseventuallytoITaaS,whichisthetransforma3onofITintoabusinessservice.

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Daveinapixel

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