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Cloud Computing: Hindernisse und Chancen für Großunternehmen
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Transcript of Cloud Computing: Hindernisse und Chancen für Großunternehmen
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
3 / 30 April 2009Cloud Computing – CMG-AE
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
4 / 30 April 2009Cloud Computing – CMG-AE
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
5 / 30 April 2009Cloud Computing – CMG-AE
Hype Cycle
6 / 30 April 2009Cloud Computing – CMG-AE
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
7 / 30 April 2009Cloud Computing – CMG-AE
Cloud Model
Hardware Computation StorageMemory
Colocation Real Estate CoolingPower Bandwidth
Virtualisation Provisioning BillingVirtualisation
Platform ProgrammingLanguage
DevelopmentEnvironmentAPIs
Application CRM UCEmail ....... .......
Integration
Operation
Governance
8 / 30 April 2009Cloud Computing – CMG-AE
Governance
Operation
Integration
Infrastructure
Platform
Application
Cloud Landscape
9 / 30 April 2009Cloud Computing – CMG-AE
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
10 / 30 April 2009Cloud Computing – CMG-AE
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
11 / 30 April 2009Cloud Computing – CMG-AE
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
12 / 30 April 2009Cloud Computing – CMG-AE
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
13 / 30 April 2009Cloud Computing – CMG-AE
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
14 / 30 April 2009Cloud Computing – CMG-AE
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