Cloud Enterprise - IT Todayittoday.info/Articles/Cloud_Enterprise_Architecture.pdf · 24 • Cloud Enterprise Architecture However,.with.the.synchronization.of.pioneering.autonomic..computing

Cloud Enterprise

Architecture

Pethuru Raj

Cloud Enterprise Architecture © 2013 by Taylor & Francis Group, LLC

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Cloud-Enabled Smart Enterprises! • 21

cloud enterprIses

As.the.cloud.theme.has.brought.in.scores.of.enlightenment.and.empower-ment.to.IT.infrastructures,.the.enterprise.IT.is.steadily.moving.toward.the.cloud.IT.by.incorporating.all.the.cloud.concepts..Having.understood.the.significance.of.cloud.embarkation,.enterprises.are.busy. in.cloud.assess-ment,.enablement,.and.on-boarding.activities..We.have.extensively.writ-ten.about.the.reverberations.of.the.cloud.idea.on.business.as.well.as.the.IT.field.in.Chapters.2.and.3..Those.who.are.new.to.cloud.computing.should.read.through.Chapters.2.through.4.

As.a.widely.discoursed,.dissected,. and.deliberated.concept. across. the.world,.cloud.computing.has.brought.in.innumerable.tectonic.and.trend-setting.shifts.for.both.IT.as.well.as.business..Though.it.is.an.evolutionary.idea,.it.becomes.extremely.popular,.penetrative,.and.pervasive.because.it.implicitly.represents.a.seamless.cluster.and.the.convergence.of.a.dazzling.array. of. proven,. potential,. and. promising. enterprise. technologies.. The.implications.of.the.much-hyped.and.-hoped.cloud.computing.are.majorly.in.two.domains:.business.and.IT.

On.the.business.front,.the.cloud.idea.has.enabled.businesses.to.explore,.experiment,.and.espouse.fresh.avenues.for.more.revenues..That.is,.a.cornu-copia.of.newer.and.nimbler.application.deployment,.delivery,.usage,.pric-ing,. integration,. collaboration,. and. management. models. have. emerged.nowadays,. and. they. are. doing. exceedingly. well. with. the. faster. stability.of. the. cloud. concepts. and. infrastructures.. The. traditional. on-premise.engagement. model. has. been. replaced. and. substituted. with. a. delivery.model.that.is.efficient,.centralized,.monitored,.managed,.and.maintained;.innovation.breeding;.on-demand.and.off-premise;.and.affordable..That.is,.cloud-hosted.and.cared.for.applications.and.services.are.fast.gaining.the.unshakeable.confidence.of.corporations,.governments,.and.organizations.across.the.planet.

On.the.other.hand,.for.IT,.the.irresistible.cloud.paradigm.has.ushered.in.a.stream.of.spectacular.and.sparkling.advancements.and.accomplishments.especially.in.the.discipline.of.IT.infrastructures..That.is,.IT.infrastructures.have. become. a. dynamic. pool. of. consolidated,. centralized,. virtualized,.automated,. and. shared. entities.. With. these. momentous. transitions,. IT.infrastructures.are.becoming.converged,.optimized,.dynamic,.real.time,.on-demand,.and.autonomic..In.other.words,.infrastructures.are.increas-ingly. and. incredibly. service. enabled,. sharable,. scalable,. and. sustainable.


22 • Cloud Enterprise Architecture

and.thus.highly.elastic,.available,.lean,.and.utilizable.for.ensuring.business.agility,.autonomy,.affordability,.and.continuity.

The.cloud.paradigm.has.greatly.and.graciously.impacted.every.worth-while.enterprise.these.days..Enterprises.are.fast.strategizing.to.absorb.all.the.augmentative.and.transformative.traits.and.tenets.of.the.fast.perco-lating.and.progressing.cloud.idea..The.closer.and.tighter.alignment.and.association.between.business.and.IT.is.becoming.substantial.and.strong.with. the. elegant. embracement. of. cloud. principles.. The. epoch-making.business.models.initiated.and.ingrained.with.the.smart.leverage.of.cloud.mechanisms.have.already.started. to.bear. fruits. for.companies..And.the.seismic. shift. from. stagnant,. inefficient,. rigid,. redundant,. and. silo-like.infrastructures. to. business-aware,. lean,. self-provisioning,. flexible,. shar-able,.and.virtual.IT.resources.is.bound.to.tactically.as.well.as.strategically.empower. enterprises. to. be. people. centric,. instant-on,. nimble,. resilient,.and. versatile.. In. short,. clinging. to. and. capitalizing. the. cloud-induced.transformational. features,. functionalities,.and. facilities. takes.any.enter-prising. individual,. innovator,. and. institution. to. greater.heights. in. their.outlooks.and.outcomes..Cloud.enterprises.are.those.that.fully.and.firmly.ingrain.the.pioneering.principles,.practices,.procedures,.and.patterns.of.the. cloud. paradigm. in. order. to. be. distinctively. and. decisively. ahead. of.their.competitors.

A.raft.of.new.cloud.types.(generic.as.well.as.specific).have.originated.and.are.doing.well..We.explain.the.potential.and.promising.clouds.in.the.following.sections.

the onset of connected clouds

It. is. absolutely. clear. that. newer. business. and. technical. cases. are. fast.emerging. for. manipulating. and. managing. hybrid. clouds. appropriately..Significantly. and. strategically,. clouds. are. becoming. connected. to. reach.greater.and.grander.targets..There.are.grand.initiatives.by.academics.and.corporations. for. achieving. their. unique. needs. leveraging. the. brewing.ideas. of. the. open. cloud,. intercloud,. delta. cloud,. and. so. on.. Ultimately,.everything. converges. towards. the. roaring. goal. of. the. connected. cloud..Standards-compliant. and. flexible. connectivity. solutions,. orchestration.patterns,. and. products. are. emerging;. integration. standards. are. being.revisited.and.revitalized.by.consortiums.for.the.impending.cloud.era;.and.so. on.. Service. orchestration. and. choreography. specifications. are. being.refactored. and. refined. toward. programmatically. composing. services.



that.are. located. in.geographically.distributed.clouds..Crafting.multifac-eted.(multidevice,.multimedia,.multimodal,.and.multichannel).data.and.service. mashups. out. of. remote. and. resilient. cloud. applications. is. gain-ing.greater.momentum.these.days.with.the.unprecedented.stability.and.scalability.of.clouds,.which.are.touted.and.termed.as.dynamic,.converged,.on-demand,.and.autonomic.deployment.and.delivery.infrastructures.for.service-centric.applications..In.short,.the.much-published.cloud.horizon.and.ecosystem.is.on.a.growth.trajectory..It.is.not.an.exaggeration.to.say.that.the.future.belongs.to.classic,.catalytic,.and.connected.clouds.

autonomic clouds

This.is.the.probable.output.of.the.seamless.convergence.of.autonomic.and.cloud. computing. models.. As. we. all. know,. autonomic. computing. repre-sents.a.paradigm.shift..It.is.all.about.deeper.empowerment.and.automation.through.embedding.and.embodying.of.right.and.relevant.knowledge.and.wisdom.into.IT.services,.solutions,.and.systems.to.be.self-.monitoring,.self-diagnosing,. self-configuring,. self-healing,. self-defending,. .self-managing,.self-organizing,.self-optimizing,.and.so.on..The.instinctive.and.distinctive.properties.of.biological.systems.are.smartly.being.assimilated.into.IT.sys-tems.so.they.are.adaptive.in.their.outlooks,.offerings,.and.outputs..Next-generation. IT. products,. platforms,. and. infrastructures. are. bound. to. be.autonomous,.self-describing,.self-serving,.and.smart..Knowledge.engineer-ing,. policy-based. interaction,. instantaneous. transaction. and. behavioral.analyses,.event.processing,. semantics,. real-time.actuation,.and.so.on.are.the.major.necessities.for.producing.and.shepherding..autonomic.systems.

With.clouds.being.positioned.as.the.futuristic.and.flexible.IT.infrastruc-ture.across.the.world,.there.will.be.revolutionary.opportunities.and.fresh.possibilities. if. these. two. computing. styles. (autonomic. and. cloud). com-bine.well..A.number.of.use.cases.are.being.prescribed.and.propagated.for.such.a.unique.coexistence.and.coordination..Ad.hoc,.interoperable,.and.dynamic.cloud.environments. can.be.quickly.established. for. supporting.emergency.needs.in.war-ravaged,.disaster-struck,.and.medical.exigencies..Sensors,. robots,. and. devices. integrated. with. IT. applications,. and. self-.scaling.clouds.go.a. long.way. in.accomplishing.a.bevy.of.people-centric.and.physical.services.

Automation.is.highly.prevalent.in.any.cloud.environment.today..Resource.and. service. provisioning. and. deprovisioning,. workload. and. resource..management,.job.scheduling,.and.so.on.are.already.automated.in.clouds..



However,. with. the. synchronization. of. pioneering. autonomic. .computing.concepts,. the. power. and. productivity. of. clouds. are. bound. to. go. up. by.several.notches..That.is,.cloud.administration.and.management.becomes.simpler..Self-service.will.be.common.and.casual..Clouds.could.be.dynami-cally. configurable..That. is,. configuration. should.be. completely. automat-able. in.any.changing.and.unpredictable.situations..Clouds.could.sharply.enhance. their. performance. and. throughput. in. case. of. any. emergencies..Clouds.could.come.back.to.life.quickly.in.case.of.any.failure.or.malfunc-tion..A.hitch.in.a.component.should.not.spread.to.other.components,.and.thereby.any.kind.of.slowdown.or.shutdown.is.fully.avoided..Recoverability,.continuity,. reconfigurability,. restorability,. availability,. and. adaptivity. are.guaranteed.with.the.maturity.and.stability.of.autonomic.clouds..Security,.sustainability,.adjustability,.and.other.QoS.attributes.are.also.ensured.

Federated clouds

A. federation. is. simply. a. union. of. its. member. entities.. The. members,.while.sharing.their.unique.capabilities.with.one.another,.maintain.their.individuality.and.integrity..In.other.words,.the.members.get.the.benefits.accrued. out. of. the. union. while. retaining. the. unassailable. control. over.their. internal. affairs.. In. the. case. of. technology. infrastructure. federa-tion,.the.key.benefits.of.the.union.are.the.lower.cost.and.the.lesser.risks.associated.with.a.pool.of.technology.assets,.which.are.available.across.a.diversified. set.of. independent.networks.. In. the.world.of.financial. asset.management,.asset.diversification.is.a.common.thing.for.mitigating.and.managing.risks..In.the.case.of.application.assets,.a.lower.risk.profile.for.any.application.could.be.achieved.through.the. federation.approach..By.diversifying. the. production. applications. and. data. across. multiple. net-works,.the.owner.of.the.applications.and.data.could.significantly.reduce.the.localized.network.performance.problems.that.could.lead.to.an.unac-ceptable. customer. service.. This. is. the. very. essence. of. good. discovery.practices..Yet.with.federation.in.place,.disaster.recovery.can.be.smoothly.accomplished.with.a.fraction.of.the.cost.of.a.wholly.owned.disaster.recov-ery.mechanism.

Cloud. service. providers. (CSPs). are. instituting. cloud. centers. in. geo-graphically.distributed.places.across. the.continents. to.capture. the.ever-increasing. cloud. market.. Business. and. IT. services. and. applications. are.progressively.finding. their.compact.and.cost-effective.residence. in. local.



and. remote. clouds.. Reusable. and. composable. cloud. services. are. being.stocked.in.abundance.for.rapidly.assembling.people-.and.business-aligned.services..That.is,.composite.services.are.being.programmatically.crafted.and.served.from.competent.cloud.environments.to.worldwide.subscrib-ers..Today,. there.are.many.different.CSPs.available. from. industry. icons.Amazon,.Google,.Microsoft,.and.so.on..However,.these.clouds.vary.hugely.in.a.number.of. aspects. such.as. technologies.and.platforms,. and.do.not.support.the.required.mechanisms.and.policies.for.dynamically.coordinat-ing.load.distribution.among.different.cloud.centers.in.order.to.determine.optimal. location. for. hosting. application. services. to. achieve. reasonable.QoS.levels.

Further,.the.cloud.providers.are.unable.to.predict.geographic.distribu-tion.of.users.consuming.their.services;.hence,.the.load.coordination.must.happen.automatically.and.distribution.of.services.must.change.in.response.to.changes.in.the.load..In.short,.the.lack.of.compatibility.and.interoper-ability.among.diverse.cloud.providers.prevents.providers.and.consumers.from. getting. all. the. originally. envisaged. benefits. of. the. cloud. comput-ing..There.is.a.greater.possibility.of.vendor.lock-in.issue.creeping.into.the.cloud.domain..Collaboration.is.very.limited.in.the.cloud.space.today..As.the. business. environment. is. predictably. unpredictable,. cloud. resources.and.infrastructures.need.to.be.very.open.and.trustworthy.to.mingle.and.mashup.to.ensure.business.agility.and.resiliency.

Importantly,.clouds.are.greatly.positioned.as.the.new-generation infra-structure. capable. of. elastically. delivering. extra. capacity.. That. is,. cloud.resources. can. be. automatically. increased. or. decreased. in. order. to. cost-effectively. fulfill. agreed. SLAs.. Clouds. could. achieve. more. by. subcon-tracting. additional. resources. from. collaborating. clouds.. This. sort. of.interconnectivity. for. making. use. of. internal. as. well. as. external. cloud.resources.in.times.of.specific.need.is.the.foundation.for.federated.clouds.

In.summary,.cloud.federation.is.quite.a.new.concept.of.service.aggre-gation. characterized. by. interoperability. features,. which. addresses. the.economic.problems.of.vendor.lock-in..Furthermore,.it.approaches.chal-lenges.like.performance.and.disaster.recovery.through.methods.such.as.co-location.and.geographic.distribution..The.concept.of.cloud.federation.enables. further. reduction. of. costs. due. to. partial. outsourcing. to. more.cost-efficient. regions,. may. satisfy. security. requirements. through. tech-niques.like.fragmentation,.and.provides.new.prospects.in.terms.of.legal.aspects.



the Intercloud

This. is. the. vision. of. the. cloud. paradigm.. This,. in. a. way,. represents. the.cloud. of. clouds.. The. standards-based. amalgamation. and. accumulation.of. cloud.resources. spread.across. the.world.goes.a. long.way. in. fulfilling.the.unique.idea.behind.the.intercloud..All.kinds.of.cloud.environments.(infrastructure,. platform,. software,. etc.). dynamically. link. up. with. one.another. in.order. to.share. their. functionalities,. features,.and.facilities. to.accomplish.superior.and.sophisticated.things..Applications.in.one.cloud.can. connect. and. access. data. in. another. cloud,. which. is. situated. in. the.vicinity.or.in.other.parts.of.the.world..Applications.can.leverage.a.cheaper.and.more.attuned.infrastructure.of.different.and.distant.clouds.owned.by.someone.else..A.notification.emanated.out.of.a.service.hosted.in.a.cloud.can.reach.out.to.a.host.of.applications.that.are.in.co-located.and.distrib-uted.clouds.in.real.time..Thus,.a.kind.of.extreme.connectivity.and.spon-taneous.integration.among.various.cloud.modules.make.the.route.toward.the.intercloud.smooth.

The.proposed.intercloud.is.perfectly.capable.of.facilitating.just-in-time,.opportunistic,.and.scalable.provisioning.of.cloud.services..All.the..internal.cloud.modules.are.equally.empowered.to.provide.and.perform.the.goal.of.automated.resource.provisioning.through.competent.software-based.solu-tions..Further.on,.the.uninhibited.linkage.with.external.cloud.resources.makes.possible.the.process.of.provisioning.toward.the.absolute.fulfillment.of.desired.and.decided.SLAs..That.means.every.single.criterion.quoted.in.the.SLAs.and.operation-level.agreements.(OLAs).can.be.fully.met.under.any.anticipated.and.unanticipated.circumstances.including.variations.in.workload,.user.base,.resource,.and.network.conditions..The.overall.goal.is. to. create. a. lean. computing. environment. that. intrinsically. supports.dynamic.expansion.or.contraction.of.VM.capabilities.for.handling.unex-pected. variations. in. service. demands. and. to. make. computing. depend-able.and.ubiquitous..Consortiums.are.working.in.unison.in.order.to.come.out.with.a.series.of.open.and.industry-strength.standards.for.cloud.infra-structure,.platform,.and.application.developers.and.providers.so.that.all.the.semantic,.syntactic,.structural,.and.symbiotic.differences.among.them.can.be.minimal.

ambient cloud

Hybrid. and. community. clouds. are. being. recommended. for. .certain. sce-narios..There.are.open.and.industry-strength.standards.being.deliberated.



and decided.by.standard.agencies.and.consortiums.in.order.to.realize.the.limitless.possibilities.of.federated.clouds..The.seamless.interactions.facili-tated.among.diverse.and.distributed.cloud.infrastructures.and.services.go.a.long.way.in.sharpening.and.shaping.up.the.future.of.cloud.computing..Today,. high-end. desktops,. server. machines,. and. storage. appliances. and.networks.are.becoming.interlinked.to.form.cloud.environments.in.order.to.revitalize.and.realize.their.innate.capabilities.and.capacities.

However,.recently,.smartphones,.tablets,.and.consumer.electronics.have.become. the. handy. and. trendy. computing. and. communication. devices.with.a.lot.of.memory.and.computing.power..Also,.the.number.of.slim.and.sleek.handhelds,.portables,.wearables,.and.fixed.and.nomadic.devices.is.exponentially.growing;.hence,. there. is.a.big.market.and.mind.share. for.clouds. formed.out.of.everyday.electronics..Similarly,. smart. sensors.and.actuators.are.increasingly.tied.up.with.one.another.as.well.as.with.remote.cloud.infrastructures.and.platforms.in.order.to.transmit,.store,.mine,.and.analyze. the. tremendous. amount. of. man-. and. machine-generated. data.with.the.ultimate.aim.of.knowledge.discovery.in.real.time..The.vision.of.extracting.and.leveraging.business.and.behavioral.insights.in.real.time.is.on.the.way.toward.reality.

Significantly,. there.are. endeavors. for. creating.and. sustaining.device.and. sensor. clouds.. The. convergence. of. mobility. and. cloud. computing.models.is.also.opening.up.a.stream.of.fresh.opportunities.and.possibili-ties.for.IT.product.vendors,.service.organizations,.and.mobile.users..It.is.estimated.that.in.the.future,.billions.of.devices.and.trillions.of.digi-talized. (smart). objects. will. be. connected. with. one. another. as. well. as.with.remote.clouds.to.realize.the.proclaimed.use,.business,.and.techni-cal.cases.of.the.much-dreamt.AmI.theme..With.such.monumental.con-nectivity.and.interactions.brewing.on.the.horizon,.the.computing.power.and. the. capacity. of. the. resulting. cloud. will. be. simply. enormous. and.envious.

Instant-on enterprises

IT.is.consistently.changing.for.good.and.is.being.prescribed.as.the.far-.reaching. agent. in. business. automation. and. transformation.. Business.behemoths.are.supposed.to.provide.IT-enabled.business.services.and.solutions.to.their.clients.and.customers.whenever.and.wherever.they.need.them..Business.organizations.have.to.deliver.their.services.cost-effectively,.securely,.and.quickly.by.operating.their.own.IT.divisions.or.



by.just.establishing.appropriate.contracts.with.competitive.IT.services.and. solutions. providers.. Cloud. computing. has. emerged. as. the. next-generation. IT. optimization. scheme. through. consolidation,. central-ization,. virtualization,. and. automation.. It. has. brought. in. a. radically.different.service.delivery.method..The.cloud.concepts.are.reverberat-ing. as. they. could. provide. new. levels. of. collaboration,. agility,. speed,.and.cost.savings.for.business.as.well.as.IT.enterprises.of.any.size.and.type.

With. the. service. era. all. set. to. blossom. powerfully,. IT. is. slated. for. a.renaissance.and.is.being.visualized.as.a.key.service.broker,.mediator,.and.facilitator.. Service-oriented. IT. enables. business. agility,. whereas. cloud-induced.IT.is.creating.a.solid.foundation.for.transitioning.IT.infrastruc-tures.to.be.more.agile..If. the.underlying.IT.is.nimble,. then.the.business.can. easily. attain. the. much-needed. agility,. autonomy,. and. affordability..Business.operations,.offerings,.and.outlooks.are.bound.to.change.with.the.combined.strength.of.service.and.cloud.IT..The.speed.and.quality.of.ser-vice. delivery. is. set. to. see. a. considerable. increase.. HP. goes. further. and.farther. to. name. cloud-enabled. businesses. as. “instant-on”. enterprises..Everything.is.becoming.instantly.planned,.procured,.produced,.and.pro-vided..An.“instant-on”.enterprise.is.an.enterprise.that.embeds.technology.into.everything.it.does.to.better.serve.citizens,.partners,.employees,.and.clients..HP.banks.on.the.hybrid.delivery.model,.which.intrinsically.lever-ages.both.conventional.IT.as.well.as.cloud.IT.(comprising.private,.public,.and.hybrid.clouds).to.annihilate.all.the.delivery.blockades.and.blockages.and.speed.up.the.service.delivery.mechanism.

enterprise-class attributes for successful cloud solutions

HP.believes.that.a.successful.cloud.solution.for.any.enterprise.must.be

•. Secure—guaranteeing. delivery. of. agreed-upon. security. levels. (e.g.,.threat.protection,.privacy,.and.compliance).and.data.and.intellectual.property.protection

•. Open, not locked in—comprising. modular. infrastructure. and. ser-vices.that.support.heterogeneous.environments

•. Automated—incorporating. policy-based. automation. and. manage-ment.that.integrates.cloud.with.legacy.assets.and.services.to.provide.integrated.service.catalogs.and.end-to-end.service.quality



•. Resilient—providing.sure.delivery.of.agreed-upon.availability,.qual-ity,.and.performance.service.levels

•. Seamless—combining.public.and.private.cloud.services.with.tradi-tionally.deployed.services.and.outsourced.services.to.deliver.a.seam-less.experience

Thus,.cloud-initiated.service.delivery.is.set.to.completely.revamp.and.revi-talize.how.IT.is.used.by.businesses.and.people.

extremely Integrated enterprises

In.the.beginning,.there.were.monolithic.mainframes,.but.they.are.silos..Then,.with.the.advent.of.personal.computers.and.the.Internet,.we.have.comput-ers.connected.locally.as.well.as.with.the.Internet..This.is.articulated.as.the.Internet.of.computers..All.kinds.of.manufacturing.instruments,.machines,.toolsets,.and.electronics.are.being.connected.with.one.another.and.with.the.web.and.also.signaling.the.reality.of.the.Internet.of.devices..As.everything.is.being.exposed.as.a.service,.there.are.business,.IT,.and.device.services.in.plenty.in.any.kind.of.enterprise.environment..Now.for.the.sake.of.creation.of.sophisticated.applications,.these.services.need.to.interact.in.order.to.craft.composite.services.and.processes.fulfilling.the.vision.behind.the.Internet.of.services..An.extremely.integrated.enterprise.(EIE).represents.the.seamless.and.spontaneous.integration.of.all.enterprise.IT.elements.and.ground-level.entities.via.the.service-level.integration.and.aggregation.methods.

In.summary,.the.cloud.idea.is.growing.quickly.and.is.being.contemplated.for.greater.things.by.IT.divisions.of.all.kinds.of.industries,.IT.service.orga-nizations,.products.and.platforms.vendors,.infrastructure.(software.as.well.as.hardware).providers,.consulting.companies,.national.governments,.aca-demic.institutions,.and.so.on..Today,.all.kinds.of.platforms.ranging.from.development,.deployment,.execution,.management,.governance,.and.mid-dleware.are.being.modernized.accordingly.to.be.hosted.in.cloud.infrastruc-tures.. Service. delivery. platforms. (SDPs),. cloud. broker,. cloud. integration.bus/cloud.service.broker,.source,.service,.supply.and.support.management.systems,.integration.containers,.database.systems,.and.so.on.are.the.leading.platforms.to.find.a.safe.and.scintillating.residence.in.the.cloud..Cloud.enter-prises.are.those.that.inculcate.both.the.business.and.IT.impacts.of.the.cloud.idea..Cloud.enterprises.are.capable.of.incubating.and.sustaining.an.innova-tion.culture.and.commitment,.which.collectively.leads.to.a.string.of.pearls.in.the.form.of.newer.processes.and.people-centric,.premium.solutions..A.sample.futuristic.application.scenario.is.pictorially.explained.in.Figure.1.2.


vii

Contents

Foreword............................................................................................ xxiiiPreface.................................................................................................. xxvAcknowledgments..............................................................................xxxiAuthor.............................................................................................. xxxiiiCEA.Book.Audience.and.Key.Takeaways........................................xxxv

Chapter 1 Cloud-Enabled.Smart.Enterprises!.................................... 1

Introduction..................................................................................1The.Brewing.IT.Trends.&.Technologies....................................2Trekking.toward.the.Smart.World.............................................8Revisiting.the.Enterprise.Journey............................................10

Dynamic.Enterprises............................................................11Adaptive.Enterprises.............................................................12On-Demand.Enterprises.......................................................13Globally.Integrated.Enterprises...........................................13Liquid.Enterprises.................................................................14Proactive.Enterprises............................................................14Connected.Enterprises..........................................................15

Service-Oriented.Enterprises....................................................16Service.Thinking.for.Next-Generation.Enterprises..........16The.Service.Paradigm...........................................................17Service-Oriented.Architecture............................................18Enterprise-Scale.Architectural.Approaches......................19Elucidating.SOEs.................................................................. 20

Cloud.Enterprises.......................................................................21The.Onset.of.Connected.Clouds..........................................22Autonomic.Clouds.................................................................23Federated.Clouds...................................................................24The.Intercloud........................................................................26Ambient.Cloud.......................................................................26Instant-On.Enterprises.........................................................27Enterprise-Class.Attributes.for.Successful.Cloud.Solutions..................................................................... 28Extremely.Integrated.Enterprises........................................29


viii • Contents

Smart.Enterprises...................................................................... 30The.Enabling.Mechanisms.of.Smart.Enterprises...................32

Service.Computing................................................................33Advanced.Analytics..............................................................33Event-Driven.Architecture.................................................. 34Big.Data.Computing............................................................ 34In-Memory.Computing........................................................35Cloud.Computing..................................................................36

Smarter.Homes.................................................................36Smarter.Cars......................................................................38Smarter.Environments.....................................................38

Conclusion...................................................................................39References....................................................................................39

Chapter 2 Cloud-Inspired.Enterprise.Transformations!................. 41

Introduction................................................................................41The.Cloud.Scheme.for.Enterprise.Success............................. 42Elucidating.the.Evolving.Cloud.Idea...................................... 44

Cloud.Technologies.............................................................. 46Cloud-Induced.Innovations.................................................47Why.Cloud.Enablement.and.Empowerment?...................49Implementing.Smarter.Environments.via.Clouds............50Application.Domains............................................................51The.Future...............................................................................51The.Intercloud........................................................................51

Implications.of.the.Cloud.on.Enterprise.Strategy.................53Establishing.a.Cloud-Incorporated.Business.Strategy......... 54

New-Generation.Business.Models......................................55The.Business.Process.Journey............................................. 56Service-Oriented.Processes................................................. 56Event-Driven.Business.Processes........................................57Communication-Enabled.Business.Processes...................58Analytics-Attached.Business.Processes.............................59Cloud-Impacted.Business.Processes...................................59

Transitioning.to.Cloud-Centric.Enterprises:.The.Tuning.Methodology......................................................... 60

Service.Categorization......................................................... 60


Contents • ix

The.Selection.Criteria.of.Services........................................61Leveraging.EA.Frameworks.for.an.Enterprise-Wide.and.Long-Lasting.Cloud.Strategy.......................................62Utilizing.a.Hybrid.Cloud......................................................62Pondering.Cloud.Modernization.and.Migration........................................................................63Transitioning.from.Data.Centers.to.Cloud.Centers........ 64Creating.Cloud-Centric.Enterprise.Policies..................... 64

Contract.Management.in.the.Cloud....................................... 64Cloud.Contract.Characteristics.......................................... 66Cloud.Participants.................................................................67Role.of.EA.in.Defining.the.Contracts.with.CSPs.and.CSBs.......................................................................67

Conclusion.................................................................................. 68References....................................................................................69

Chapter 3 Cloud-Instigated.IT.Transformations!............................ 71

Introduction................................................................................71Explaining.Cloud.Infrastructures............................................72

Cloud.Computing.Infrastructure........................................73Cloud.Communications.Infrastructure.............................74Virtualization.for.the.Communication.Industry.............76The.Cloud.Inspires.the.UC.Paradigm.................................76Communication.as.a.Service...............................................77

A.Briefing.on.Next-Generation.Services.................................78Emerging.Cloud.Types.........................................................79Ambient.Cloud...................................................................... 80

Service.Infrastructures..............................................................82Cloud.Infrastructures............................................................... 84

Cloud.Infrastructure.Evaluation.Parameters....................85Cloud.Infrastructure.Capabilities...................................... 86

Cloud.Infrastructure.Solutions............................................... 86Identity.and.Access.Management.Suite..............................87Cloud.Infrastructure.Management.Solutions.................. 88Automated.Management..................................................... 88Resource.Provisioning..........................................................89Cloud.Performance.and.Scalability....................................89


x • Contents

End-to-End.Cloud.Service.Visibility..................................89Security.Management.and.Federation............................... 90Cloud.SDP.............................................................................. 90Responsible.Cloud.Infrastructure...................................... 90

Clouds.for.Business.Continuity................................................92The.Relevance.of.Private.Clouds..............................................93The.Emergence.of.Enterprise.Clouds......................................95

Affordability...........................................................................97Resource.Slicing,.Pooling,.and.Sharing..............................97Clouds.Are.Lean.and.Green.................................................97Decoupling.of.Software.from.Hardware............................98Virtualized.Data.Storage.and.Management......................98Data.and.Disaster.Recovery.and.Business.Continuity...............................................................................98Automated.Tools....................................................................98Multitenancy.and.Shared.Environment............................ 99

Conclusion.................................................................................. 99References................................................................................. 100

Chapter 4 Cloud.EA:.Frameworks.and.Platforms.......................... 103

Introduction..............................................................................103Simplifying.EA.Development.................................................105

Why.EA.is.the.Preferred.Approach..................................105The.Zachman.Framework.......................................................107The.Open.Group.Architecture.Framework.(TOGAF)........108

A.Content.Model.................................................................113Architecture.Repository.....................................................115TOGAF.Reference.Models.................................................116

The.Federal.Enterprise.Architecture.....................................117The.Oracle.EA.Framework..................................................... 120

The.Business.Architecture.(BA)........................................121Application.Architecture................................................... 122Information.Architecture.................................................. 122Technology.Architecture................................................... 123People,.Process,.and.Tools................................................. 123

IBM’s.Actionable.EA............................................................... 126Enterprise.Architecture.Tools............................................... 128Conclusion.................................................................................133References..................................................................................133


Contents • xi

Chapter 5 Cloud.Application.Architecture..................................... 135

Introduction..............................................................................135Cloud.Application.Architecture.............................................137Services.as.Enterprise.Building.Blocks.................................138Amazing.Differentiators.of.SOA............................................139Key.Drivers.for.NG-SOA.........................................................141

The.Growth.Trajectory.of.the.SOA...................................142Exemplary.Enhancements.in.the.Service.Paradigm...........144

Process-Centric.SOA.for.Flexibility,.Agility,.and.Adaptivity.....................................................................144Model-Driven.SOA.for.Application.Productivity.and.Portability.....................................................................147Event-Driven.SOA.for.Proactive.and.Real-Time.Systems..................................................................................148Service-Oriented.BI.............................................................150The.SCA.for.Simplified.Construction.and.Composition.........................................................................151Agent-Driven.SOA.for.Awareness.and.Smartness......... 154Semantic.SOA.for.Automation.and.Dynamism..............155Service.Virtualization.for.Simpler.Service.Plug.and.Play........................................................................156

Exciting.Service.Capabilities..................................................158Service.Composition...........................................................158Service.Composites.............................................................161Service.Meshes.....................................................................162Service.Mashups..................................................................164

Dynamic.and.Converged.Service.Infrastructures...............166Service.Grids........................................................................166SOA.Fabrics..........................................................................167Cloud-Hosted.Service.Middleware...................................170Middleware.for.Embedded.SOA.......................................170

Direct.and.Distinct.Impacts.of.NG-SOA..............................172The.Service.Oriented.Enterprises.(SOEs).........................172Smart.Hospital.....................................................................172Rich.Enterprise.Applications.............................................174Service-Oriented.Business.Applications..........................175Dynamic.Business.Applications........................................176Multienterprise.Business.Applications.............................177


xii • Contents

Real-Time.and.Dynamic.Enterprises................................178Integrated,.Adaptive,.and.Modernized.Enterprises.......180

Conclusion.................................................................................180References..................................................................................181

Chapter 6 Cloud.Data.Architecture................................................ 183

Introduction..............................................................................183A.Perspective.on.Big-Data.Computing.................................185

Why.Big-Data.Computing?................................................187A.Look.at.Big-Data.Infrastructure.........................................189

NoSQL.Databases............................................................... 190Why.NoSQL.Databases?.....................................................191Simplified.Data.Representation.........................................192End-to-End.Transactions...................................................192Enterprise-Grade.Durability..............................................192Classification.of.NoSQL.Databases...................................193

Key-Value.Stores..............................................................193Column.Family.Databases............................................193Document.Databases......................................................194Graph.Databases.............................................................194Cloud.Databases..............................................................195

The.Hadoop.Software.Family.................................................196Functional.Features.of.Big-Data.Infrastructures............196Acquisition.of.Big.Data.......................................................198Organizing.Big.Data............................................................199Analyzing.Big.Data..............................................................199

Information-Oriented.Architecture.for.Cloud.Environments........................................................................... 200

Characteristics.of.IOA........................................................201The.IOA.Ecosystem.............................................................201

Leading.BI.Applications................................................ 202The.BI.Application.Infrastructures............................. 204Data.Storage.Infrastructures........................................ 205The.BI.Middleware........................................................ 206

A.Detailed.Look.at.Data.Integration.................................... 208Types.of.Data.Integration...................................................212

Physical.Data.Integration..............................................212Virtual.Data.Integration................................................213


Contents • xiii

Comparison.of.EII.versus.ETL..........................................213Comparison.of.EAI.versus.ETL.........................................214Generic.Criteria.for.Selecting.a.DataIntegration.Tool...................................................................214Business.Drivers.for.Data.Integration..............................215Top.Five.Functional.Capabilities.of.Any.Data.Integration.Solution............................................................217

Data.Movement.with.Core.ETL....................................217Data.Movement.with.Next-Generation.ELT...............217Data.Synchronization.....................................................218Data.Quality....................................................................218Data.Management...........................................................219Data.Governance............................................................219

Data.Services............................................................................ 220The.SOA-Aware.Data.Services.......................................... 220

Enterprise.Data.Mashups........................................................221Oracle’s.Big-Data.Solution......................................................221

Hardware.Components...................................................... 222Software.Components........................................................ 223

Cloud.Analytics....................................................................... 223Summary.................................................................................. 224References................................................................................. 225

Chapter 7 Cloud.Technology.Architecture..................................... 227

Introduction............................................................................. 227Generic.Cloud.Types............................................................... 230

Public.Cloud.........................................................................231Private.Cloud........................................................................233Community.Cloud............................................................. 234Hybrid.Cloud........................................................................235

Next-Generation.Connected.Clouds.................................... 236Cloud.Middleware.Deployment.Scenarios.......................... 238

Cloud.Composition.and.Collaboration............................241Cloud.Orchestration.......................................................241Cloud.Collaboration...................................................... 242

Scenarios.for.Cloud.Brokers.............................................. 243Scenarios......................................................................... 244

Cloud.Reference.Architecture........................................... 244


xiv • Contents

Scenarios.for.the.Cloud.Management.Broker................ 244The.Cloud.Service.Broker.(CSB).Deployment.Models....... 247

ESB.Deployment.Styles...................................................... 248Hub-and-Spoke.Style..................................................... 248Distributed.Service.Bus..................................................251

Variations.in.ESB.Deployment..........................................253Peer-to-Peer.ESB.Deployment.Model...............................255Cloud-Ready.Mule.ESB.......................................................257

Cloud.Appliances:.The.Deployment.Method...................... 258Deployment.Challenges..................................................... 258Localization......................................................................... 258Routing..................................................................................259Authentication.....................................................................259

Cloud.Deployment.Strategy:.The.Formula...........................259Step.1:.Map.the.Network................................................... 260Step.2:.Classify.Assets.........................................................261Step.3:.Map.Assets.to.Cloud.Deployment.Models...................................................................................261Step.4:.Evaluate.Potential.Cloud.Service.Models.and.Providers.......................................................................261

The.Future................................................................................ 263Conclusion................................................................................ 264References................................................................................. 264

Chapter 8 Cloud.Integration.Architecture..................................... 267

Introduction............................................................................. 267Cloud.Integration:.Origin.and.Evolution............................ 268

The.Emergence.of.“IT.as.a.Service”.................................. 269Integration.as.a.Service...................................................... 269

Approaches.for.Cloud.Integration.........................................270Integration.Approaches......................................................271Pervasive.Software,.Inc.......................................................273Impacts.of.the.Cloud.Paradigm.........................................273The.Cloud.Integration.Enigma..........................................274

Cloud.Integration.Concerns.and.Challenges.......................276Cloud.Integration.Scenarios..............................................278

Integration.within.a.Public.Cloud................................279Homogeneous.Clouds....................................................279


Contents • xv

Heterogeneous.Clouds...................................................279Restricted.Access................................................................ 280Dynamic.Resources.............................................................281Performance.........................................................................281

Cloud.Integration:.Methodologies.and.Life.Cycle...............281Cloud.Integration.Methodologies.................................... 282Characteristics.of.Cloud.Integration.Solutions.............. 284Data.Integration.Engineering.Life.Cycle......................... 285

Cloud.Integration.Products.and.Platforms......................... 286Jitterbit.................................................................................. 287Boomi.Software................................................................... 288Bungee.Connect.................................................................. 289OpSource.Connect............................................................. 289SnapLogic............................................................................. 290Windows.Azure.AppFabric............................................... 290Bluewolf.................................................................................291Oracle.SOA.Suite.11g.......................................................... 292Magic.Software’s.iBOLT.................................................... 292WebSpan...............................................................................293Adeptia.Salesforce.Integration.Accelerator......................293Online.MQ...........................................................................293CloudMQ............................................................................. 294Linxter.................................................................................. 294Microsoft.ISB........................................................................295

Cloud.Integration.Appliances................................................295Cast.Iron.Systems,.Inc........................................................295

Cloud.Interoperation.Methods.............................................. 297Unified.Cloud.Interface/Cloud.Broker............................ 297Enterprise.Cloud.Orchestration.Platform....................... 298Peer-to-Peer.Approach.for.Cloud.Integration................ 299Benefits.of.Hybrid.and.p2p.Cloud-Based.ESB.Architecture......................................................................... 300

Cloud.Integration.Services......................................................301Informatica.On-Demand....................................................301Businesses-to-Business.Integration.Services.................. 302Cloud-Based.Enterprise.Mashup.Integration.Services.for.B2B.Scenarios................................................ 304Enterprise.Mashup.Platforms.and.Tools......................... 306

Message.Queue............................................................... 308


xvi • Contents

Persistent.Storage........................................................... 308Translation.Engine........................................................ 308

Interaction.between.Mashup.Services............................. 308A.Framework.of.Sensor-Cloud.Integration......................... 309

Stream.Monitoring.and.Processing.Component............312Registry.Component...........................................................313Analyzer.Component..........................................................313The.DC..................................................................................313Mediator................................................................................314The.PR...................................................................................314The.CA..................................................................................314


Chapter 9 Cloud.Management.Architecture...................................317

Introduction..............................................................................317Cloud.Service.Management....................................................319

Why.Do.Cloud.Resources.Need.to.Be.Managed?...........319IT.Service.Management......................................................321Service.Assets.and.Configuration.Management.............322Service.Catalog.Management.and.RequestFulfillment............................................................................323Financial.Management...................................................... 324

Challenges.Involved.in.CSM.................................................. 324A.Sample.Scenario...............................................................325Complications.of.Cloud.Centers.......................................325Complexity.Moderation.Techniques.and.Tips............... 326

CSM.Processes......................................................................... 328Change.Management..........................................................329Problem.Management.........................................................330Release.Management...........................................................331Security.Management.........................................................332Capacity.Management........................................................332Service.Continuity.Management.......................................333Service.Level.Management.................................................334

Cloud.Management.Solutions................................................334Key.Attributes.of.Cloud.Management.Solutions............335Cloud.Management.Software.Benefits.............................336


Contents • xvii

The.BMC.Cloud.Management.Solution...........................338The.VMware.and.NetApp.Combination......................... 340The.BMC.and.VMware.Combination.............................. 341Automation.of.CMDB.for.Instant.Success.in.Change.Management......................................................... 344Innovations.in.Analytics.and.Correlation.for.Proactive.Management.and.Efficient.Root.Cause.Analysis.................................................................... 345Service.Discovery.and.Impact.Analysis.to.Align.IT.with.Business...................................................... 346

Semantic.Technologies.for.Cloud.Information.Management............................................................................. 347

Data.Integration.................................................................. 348Collaborative.Documentation.and.Annotation............. 348Intelligent.Information.Access.and.Analytics................ 349The.eCloudManager.Ontology..........................................351


Chapter 10 Cloud.Security.Architecture.(CSA)............................... 355

Introduction............................................................................. 355Security.Implications.of.Cloud.Computing........................ 357Key.Cloud.Security.Issues.......................................................358

Cloud.Data.Confidentiality................................................359Cloud.Data.Integrity.......................................................... 360Cloud.System.Availability................................................. 360

Virtualization-Induced.Cloud.Security.Issues.................... 362Security.Threats.of.the.Intercloud.................................... 364

Cloud.Security.Solutions........................................................ 365Crafting.a.Comprehensive.Threat.Model........................ 365Security-Enablement.Approaches.................................... 366

Cloud.Infrastructure.Security..................................... 366Information.Security......................................................370Identity.and.Access.Management.................................373End-User.Devices.Security............................................376

Emerging.Cloud.Security.Mechanisms.................................377Policy-Based.Cloud.Security.Enforcement.(Ulrich.Lang,.ObjectSecurity,.USA).................................377


xviii • Contents

Why.Model-Driven.Security.(MDS)?..........................378Policy.as.a.Service.......................................................... 380Why.Policy-Based.Automation.atthe.Cloud?....................................................................... 380

Information.Lifecycle.Management.inthe.Cloud...............................................................................381

Data.Dependability........................................................ 382Data.Location................................................................. 382Data.Isolation................................................................. 382Data.Recovery.and.Restoration................................... 382Data.Discovery............................................................... 382Data.Aggregation.and.Inference.................................. 382Data.Abolition................................................................ 383

Trusted.Cloud.Computing................................................ 383Cloud.Security.Patterns.......................................................... 385

Security.Gateways............................................................... 386Monitoring.and.Logging................................................... 387Security.Token.Services..................................................... 387

Policy.Enforcement.Points............................................ 388Cloud.Security.Best.Practices................................................ 389

Assessment.and.Reliability.Audits................................... 389Security.Compliance.......................................................... 390Cloud.Risk.Management.Framework...............................391

Why.the.SaaS-based.“Security.as.a.Service”Model?........................................................................................391

Security.as.a.Service............................................................391Security.Compliance.as.a.Service..................................... 392Affordability.........................................................................393Business.Continuity............................................................393Global.Coverage.................................................................. 394

Cloud.Security.Proprietary.Solutions....................................395Joyent.SmartOS:.Hardened.Kernel...................................395

SmartMachine.Security.................................................395Security.Gateways............................................................... 396

Navajo.Systems.Virtual.Private.SaaS.......................... 397Vormetric.Data.Security............................................... 398Intel.Service.Gateway.................................................... 400

Conclusion................................................................................ 400References..................................................................................401


Contents • xix

Chapter 11 Cloud.Governance.Architecture.................................... 403

Introduction............................................................................. 403Emergence.of.Cloud.Services.and.Applications.................. 405

Clouds:.The.Robust.and.Resilient.Platform.for.Business.Services................................................................ 407

Evolution.of.Governance.Principles,.Policies,.Practices,.and.Products.......................................................... 409

SOA.Governance.................................................................411Strong.and.Sustainable.Governancefor.Agility..............................................................................413Data.Governance.................................................................415

Define.What.Data.Governance.Means.to.an.Organization..............................................................417

Determine.Which.Data.Management.Functions.to.Include..............................................................................417

Overview.of.Cloud.Governance.............................................418Design-Time.Cloud.Governance.......................................421Runtime.Cloud.Governance............................................. 422Policies.for.Runtime.Cloud.Governance......................... 423Policy.Engineering............................................................. 423Policy.Enforcement............................................................ 424Virtual.Policy.Enforcement.Point.................................... 425Policy.Enforcement.on.Outgoing.Traffic......................... 425Policy.Enforcement.on.Incoming.Traffic........................ 426Policy.Enforcement.on.Cloud.Services............................ 428

A.Methodology.for.Cloud.Governance................................ 429Cloud.Evaluation.Phase..................................................... 430Cloud.Governance.Definition.Phase............................... 430

Develop.Relationship.with.Providers...........................431Cloud.Governance.Execution.Phase................................ 432

Build.Management.and.Monitoring.Layer................. 432Set.Up.PEPs.in.DMZ..................................................... 432Deploy.Virtual.PEPs.in.the.Cloud................................433Integrate.Heavy.Components.Later.............................433

Operational.and.Review.Phase..........................................433Why.Is.Cloud.Governance.Imperative?................................433

Guaranteeing.Reliability.................................................... 435Managing.Cloud.Services.................................................. 435


xx • Contents

Managing.Scale................................................................... 435Managing.Cloud.Ecosystems............................................ 436

Cloud.Governance:.Best.Practices........................................ 436Service.Value.Chain.Enablement..................................... 437Process.Innovation............................................................. 438Risks.Identification.and.Control...................................... 438Building.Trust..................................................................... 439

Cloud.Governance.Solutions................................................. 441Things.to.Look.for.in.a.Cloud.Governance.Solution................................................................................ 441

Vordel.CSB............................................................................... 443Elements.of.Cloud.Governance........................................ 444Analytics.of.Cloud.Usage.................................................. 444Content.Analysis................................................................. 445Caching................................................................................ 445Monitoring.SLA.................................................................. 445Traffic.Throttling................................................................ 445Event.Alerting..................................................................... 446Identity.as.the.Key.............................................................. 446Connecting.an.Enterprise.to.a.Cloud.............................. 446Composition.of.Cloud.Services........................................ 446Enabling.the.CSP................................................................ 447Enabling.Cloud.Service.Brokerages................................. 447

Conclusion................................................................................ 447References................................................................................. 448

Chapter 12 Cloud.Onboarding.Best.Practices.................................. 451

Introduction............................................................................. 451A.Perspective.on.Cloud.Onboarding.....................................452

Benefits.of.Cloud.Onboarding...........................................452Application.Migration:.A.Case.Study...............................453Cloud.Onboarding.Use.Cases........................................... 454Top.Considerations.for.Cloud.Onboarding.....................455

A.Cloud.Onboarding.Process................................................ 456The.Evaluate.Step................................................................ 457The.Select.Step..................................................................... 457The.Migrate.Step................................................................. 458

Application.Evaluation.Criteria............................................ 458


Contents • xxi

Application.Dependency.Mapping....................................... 460The.Optimize.Step...............................................................461The.Operate.Step................................................................. 462

Cloud.Onboarding.Services................................................... 462Emergence.of.Cloud.Enterprises...................................... 462

Cloud.Advisory.and.Advocacy.Services.............................. 463Cloud.Adoption.Assessment.Service............................... 464Cloud.Design.Service......................................................... 464Cloud.Development.Service.............................................. 466Cloud.Management.and.Operations................................ 466Cloud.Implementation.and.Migration.Services............. 466Cloud.Protection.Service................................................... 467Cloud.Support.Services...................................................... 467

Cloud.Center.Transformation.Implementation.Services..................................................................................... 467

The.Roles.of.the.Cloud.in.Structuring.and.Sustaining.Next-Generation.Business.Enterprises........ 467

Conclusion................................................................................ 468References................................................................................. 469

Index..................................................................................................... 471


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Cloud Enterprise - IT Todayittoday.info/Articles/Cloud_Enterprise_Architecture.pdf · 24 • Cloud Enterprise Architecture However,.with.the.synchronization.of.pioneering.autonomic..computing