Cloud Computing
Michael SandbergSVP and CTO, Federal Systems
Vision Technologies, Incorporated
A n I P C o n v e r g e n c e C o m p a n y
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Overview
Agenda Why Cloud? Essential Characteristics Cloud Service Models Infrastructure as a Service (IaaS) Benefits of IaaS Challenges of IaaS Adoption of IaaS Summary
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Why Cloud?
Value Proposition Provides a way to exploit virtualization and
consolidation Aggregates computing resources Offers economies of scale Offers opportunities to immediately take
advantage of installed software, hardware, infrastructure, and applications
Provides on-demand network access to a shared pool of configurable computing resources
Lower IT costs
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Essential Characteristics
On-Demand Self-Service Broad Network Access Resource Pooling Rapid Elasticity Measured Service
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Cloud Service Models
Software as a Service (SaaS)― The capability provided to the consumer to
the provider’s applications running on a cloud infrastructure
Platform as a Service― The capability to deploy onto the cloud
infrastructure consumer-related or acquired applications using programming languages and tools supported by the provider
Infrastructure as a Service (IaaS)― The capability to provision processing,
storage, networks and other computing resources
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Infrastructure as a Service (Iaas) Consumer provisioned processing, storage,
networks, and other computing resources Consumer is able to deploy and run random
software Consumer does not manage or control the underlying cloud infrastructure
Consumer has control over operating systems, storage or deployed applications
Consumer may have some limited control of selecting network components (e.g., host firewalls)
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Benefits of IaaS
Virtualization and consolidation of IT infrastructure Reduction in IT operating expenses and capital expenses Improvement of resource utilization and administrator-to-
server ratios Faster time to market through increased efficiency and
automation of standardized solutions Simplified integrated management Greater visibility into business processes and system
performance to identify redundancies and bottlenecks Scaled operations that can meet IT demands, market
dynamics, and business strategy
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Challenges of Iaas
Performance and security depend on a cloud deployment model―Private―Community―Public―Hybrid
Global political hybrid environment―National laws and restrictions―Need for worldwide agreement on data securities,
privacy policies and data interconnection
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Adoption of IaaS
Adoption Process and Issues―Analyze IaaS offerings in terms of TCO/ROI and
risks (e.g., vendor lock-in, interoperability, existing IT infrastructure)
―Define a clear IaaS strategy for both private and public implementation
―Start with a proof of concept – private on-site deployment (e.g., infrastructure virtualization project to establish a foundation for future cloud adoption)
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Adoption of IaaS
Considerations―Consider added business value of private
(outsourced) and public deployment models (e.g., security and reliability issues, integration with existing enterprise services
―Public deployments should move only non-critical, low-risk applications in early transition stages
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Summary
Cloud computing Offers a centralized, remote facility for computing, leading to
economies of scale in both software and hardware and a reduction in required administrative management.
Permits the expense of infrastructure and its management to become an operational expense rather than a capital investment.
Offers agility and speed for the use of computing resources on an immediate basis
Is not an answer for every problem. Requirements force very high levels of control and/or security may not be appropriate.
Is not necessarily cheaper than conventional computing environments. It is the mix of computing workloads and their cost in traditional and cloud computing environments which will determine if savings can be made.