Cloud DeploymentsMODELS – METHODS - TYPES

By Mohamed Sami and Mostafa El-Hefnawy

Agenda

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Cloud Deployment Models

Deployment Models Adoption Rate

Selection for best model

Related research topics

References

What are the cloud deployment models

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Private cloud

Private cloud: The cloud infrastructure is provisioned for exclusive use by a single organization comprising multiple consumers (e.g., business units). It may be owned, managed, and operated by the organization, a third party, or some combination of them, and it may exist on or off premises.

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Private cloud (Cont’d)

ON-SITE PRIVATE CLOUD OUTSOURCED PRIVATE CLOUD

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Public cloud

Public cloud: The cloud infrastructure is provisioned for open use by the general public. It may be owned, managed, and operated by a business, academic, or government organization, or some combination of them. It exists on the premises of the cloud provider.

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Public cloud (Cont’d)

Community cloud

Community cloud: The cloud infrastructure is provisioned for exclusive use by a specific community of consumers from organizations that have shared concerns (e.g., mission, security requirements, policy, and compliance considerations). It may be owned, managed, and operated by one or more of the organizations in the community, a third party, or some combination of them, and it may exist on or off premises.

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Community cloud (Cont’d)

ON-SITE COMMUNITY CLOUD OUTSOURCED COMMUNITY CLOUD

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Hybrid cloud

Hybrid cloud: The cloud infrastructure is a composition of two or more distinct cloud infrastructures (private, community, or public) that remain unique entities, but are bound together by standardized or proprietary technology that enables data and application portability (e.g., cloud bursting for load balancing between clouds).

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Hybrid cloud (Cont’d)

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Growth Expected for Models

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Currently

In 18 Months

World Adoption

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How to select the best Model for your business?

The cloud deployment selection is based on multiple evaluation criteria including technology, business criteria, legal issues, etc…

The best model selection may be for:

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Workload Patterns

Security concerns

Regulations AvailabilityHosted Data classification

Type of requested services

Available Budget

Time to operate

Skills

Cloud workload Patterns

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Summary

Cloud Deployment SummaryDeployment model Description Best suited for offers challenges

Public cloud • Provisioned of general public use• Externally hosted by a service provider

• Variable workloads• Test & Dev

• The Lowest TCO• Rabid elasticity &

flexibility• Faster deployments

• Data security & privacy

• Service availability (e.g. cut in connectivity)

Private cloud • Use for a single organization• Can be internally or externally deployed

• Sensitive data• Legal compliance

• Security & control• Higher customizability• performance

• High Cost of ownership

• Required skill set

Community cloud • Shared by several organizations• typically externally hosted• Can be hosted internally by one of the

organizations or could be distributed.

• Collaboration betweenuniversities

• Multiple business enterprises apply Shared services model (e.g. group of hospitals & clinics)

• Lower TCO than private cloud

• elasticity

• Complex IT governance

• Required skill set

Hybrid cloud • Composition of 2 or more clouds that remains unique entities but are bound together.

• Make use of the scalability and cost-effectiveness of public cloud offers without exposing mission-critical applications and data to third-party vulnerabilities

• Cloud bursting• On-demand access• Sensitive data• Storage as a service for non-

sensitive data

• Lower TCO• High elasticity• Security &control• Performance• customizability

• Portability• interoperability• Integration• migration

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Research hot topics• Cloud Data sovereignty - Legal research

◦ What are the laws governing the data access? How to comply with conflicting laws & acts?◦ The laws of the country in which the data originated?

◦ The laws of the country in which the cloud customer is based?

◦ The laws of the country, or countries, in which the cloud provider houses its data centers?

◦ The laws of the country in which the cloud provider is based?

◦ Or all of the above?

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Research hot topics (Cont’d)• Cloud Computing portability & interoperability- Technical research

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Research hot topics (Cont’d)• Cloud Computing portability & interoperability- Technical research

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Data portabilityApplication portability

Platform portability

Application interoperability

Platform interoperability

Management interoperability

Other topics

Distributed file systems and data management

(Technical)

Legacy System Migration (Technical)

Cloud SLAs

(legal & contractual)

Community cloud governance (operation &

managerial)

Performance/scale/price estimation

(marketing, management)

Mobile Cloud Computing

(Technical)

Deployment Model Selection

(Strategic Management)

Cost & Risk Analysis

(Management)

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References• NIST SP 800-145, “A NIST definition of cloud computing”, http://csrc.nist.gov/publications/drafts/800-145/Draft-SP-800-145_cloud-definition.pdf

• NIST Cloud Computing Reference Architecture, http://www.cloudcredential.org/images/pdf_files/nist%20reference%20architecture.pdf

•NIST SP 800-146, “NIST Cloud Computing Synopsis and Recommendations”, http://csrc.nist.gov/publications/drafts/800-146/Draft-NIST-SP800-146.pdf

•Cloud Computing Portability and Interoperability, http://www.opengroup.org/cloud/cloud_iop/cloud_port.htm

•Towards Multi-criteria Cloud Service Selection, IEEE, http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5976164&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5976164

•Cloud Computing – A Classification, Business Models, and Research Directions, springer, http://download.springer.com/static/pdf/458/art%253A10.1007%252Fs12599-009-0071-2.pdf?auth66=1388152113_369819fc6a3a7900814b03a13546acf7&ext=.pdf

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References (Cont’d)•Deployment models: Towards eliminating security concerns from cloud computing, IEEEhttp://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5547137&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5547137

•Cloud computing: Issues and challenges, IEEE http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5474674&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5474674

•Virtual Infrastructure Management in Private and Hybrid Clouds, IEEE http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5233608&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5233608

•Building a Flexible Service Architecture for User Controlled Hybrid Clouds, IEEE http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6329175

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Thank you

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