Cloud Computing:Hindernisse und Chancen für Großunternehmen CMG-AE

John RhotonDistinguished TechnologistEDS Office of the CTO

1 / 30 April 2009

2 / 30 April 2009Cloud Computing – CMG-AE

Agenda

• Definition von Cloud Computing?

• Ecosystem, Marktlandschaft und Reife

• Vor- und Nachteile

• Praktische Überlegungen

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Was bedeutet “Cloud Computing”?

The 451 Group: “The cloud is IT as a Service, delivered by IT resources that are independent of location”

Gartner: “Cloud computing is a style of computing where massively scalable IT-related capabilities are provided ‘as a service’ across the Internet to multiple external customers”

Forrester: “A pool of abstracted, highly scalable, and managed infrastructure capable of hosting end-customer applications and billed by consumption”

Wikipedia: “A style of computing in which dynamically scalable and often virtualized resources are provided as a service over the Internet. Users need not have knowledge of, expertise in, or control over the technology infrastructure "in the cloud" that supports them.”

“A large pool of easily usable and accessible virtualized resources (such as hardware, development platforms and/or services). These resources can be dynamically reconfigured to adjust to a variable load (scale), allowing also for an optimum resource utilization. This pool of re-sources is typically exploited by a pay-per-use model in which guarantees are offered by the Infrastructure Provider by means of customized SLAs.”

Vaquero, Rodero-Merino, Caceres, Lindner

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Cloud Elemente

•Externe Stellfläche

•Firewall-extern

•Zugriff über Internet

•On-Demand

•Skalierbar

•Elastisch

•Abrechnung nach Nutzen

•Multi-tenant

•Virtualisiert

•Als Service verfügbar

•Ortsunabhängig

•SOA?

•Grid?

•Web 2.0?

Private versus Public Cloud

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Hype Cycle

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WebServices

Web 2.0

Across the Chasm

Innovators Early Adopters

Late Majority

LaggardsEarly Majority

Bowling Alley

Tornado

Main Street

Early Market

Internet

Mobility

CloudComputing

Virtualization

Geoffrey Moore: Crossing the Chasm. Collins 2002

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Cloud Model

Hardware Computation StorageMemory

Colocation Real Estate CoolingPower Bandwidth

Virtualisation Provisioning BillingVirtualisation

Platform ProgrammingLanguage

DevelopmentEnvironmentAPIs

Application CRM UCEmail ....... .......

Integration

Operation

Governance

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Governance

Operation

Integration

Infrastructure

Platform

Application

Cloud Landscape

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Cloud-orientierte Applikationen

•Service-orientierte Architektur– Service abstraction, reusability, composability

•Loose coupling– Non-latency sensitive

– Not bandwidth intensive

•Horizontale Skalierung– Parallelisable workload

– Statelessness

•Daten isolieren

•Standardisierte Schnittstellen

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Vorteile von Cloud Computing?

• Kostenreduktion– Benefit from economies of scale and experience curve– Predictability of spend– Avoids cost of over-provisioning– Reduction in up-front investment

• Risiko-reduktion– Offload risk or running the data-centre, data protection, and disaster

recovery– Reduces risk of under-provisioning

• Kernkompetenz– Reduce effort and administration related to IT– Automatic service evolution

• Flexibilität– Roll-out new services, retire old– Scale up and down as needed; quickly– Faster time to market: Lower barriers to innovation– Access from any place, any device, any time

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Herausforderungen

•Finanzielle Struktur– Return on Investment, Payback period

•Risiko– Security, Privacy

– Interoperability, Portability

– Reliability, SLAs

– Business Continuity, Vendor viability

– Compliance

• Integration – Enterprise integration, Application integration

– Multi-customer support

•Organisation

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Konkrete Vorgangsweise

•Planen

•Cloud Platform auswählen

•Mögliche Provider bewerten

•Applikationen auf (Cloud-) Eignung prüfen

•Applicationen modernisieren

•Langfristige Kapitalausgaben überprüfen

•Hybrid und Interoperabilität

•Business Case berechnen

•Risiko bewerten Consider:TransitionOperationGovernance

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Zusammenfassung

•Der Begriff „Cloud Computing ist noch nicht eindeutig definiert– Aber das hindert uns nicht daran es einzusetzen

•Cloud Computing verspricht viele Vorteile– Enterprisevorteile können teilweise von Private

Cloud abgedeckt werden

•Cloud Computing ist noch im Wandel– Privacy, Service-levels, Interoperabilty

•Der Umstieg auf Cloud Computing erfordert eine grundlegen andere Architektur

•Es gibt auch jetzt schon Möglichkeiten im Enterprisebereich– Aber die wichtigste Herausforderung ist die

heutige Umgebung zukunftssicher zu machen

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Weitere Informationen

•Presentation posted to:– http://www.slideshare.net/rhoton

•Any other questions?– <firstname.lastname>@gmail.com

•More about the presenter:– http://www.linkedin.com/in/rhoton

•More about HP cloud services– http://www.hp.com/go/cloud