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Introduction to Cloud Computing
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What is Cloud Computing?
• Style of computing where scalable and elastic IT-related capabilities are provided as a service to customers, using Internet technologies.
• It allows business to increase IT capacity on the fly and in real time without investing in new infrastructure.
• Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services).
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Cloud Terminology & Concepts - Technologies
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Virtualization
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Cloud Characteristics
•Multi-tenant – the ability to process the needs of multiple users with shared resources in a dynamic and transparent fashion •Elastic – resources can expand and contract as needed •Scalable – resources can scale to tens of thousands of system •Metered/Rented – some manner of “pay for only what you use”‖ •Self-Provisioned – “self check-in” at least to some degree •Internet based – accessible using internet technology, usually over the public Internet •X as a Service – the details/concerns of implementation are abstracted for the customer •Dynamic and Autonomic – Monitoring and Adjusting to meet predefined service levels. •Secure – an overall decrease in risk due to greater security protocols and tools from the cloud provider for data in motion, data at rest and data in process.
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Cloud Computing Journey
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Do Organizations really want Cloud?
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Cloud Computing Benefits
•Reduced Cost – Incremental, No Buy and Installation, Pay for Use •Increased Storage – Unlimited, No server upgrades •Highly Automated - Automatic Software Updates •Flexibility – Access data anywhere, anytime •More Mobility •Allows IT to Shift Focus – No Server/Software Updates •Quick & Easy – Gmail, hardware access, Multi-Tenancy •Green IT – Less Power
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Cloud Computing Benefits
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Challenges & Risk
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Challenges & Risk
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Cloud Computing Mechanisms
•Virtual Server •Ready-Made Environment •Failover system •State Management Database •Pay for use Monitor
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Virtual Server
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Failover System
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Pay for use Monitor
•Minimal or no upfront costs •Usage-based pricing, so that customer costs are based on actual usage •Elasticity, so that customers can dynamically consume more or less resources as and when they need it Benefits: •Awareness – Low Cost, Lesser Waste •Sharing of Resources •Pushes IT cost back to consumer
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Ready Made Environment
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Cloud Deployment Models – Public Cloud
• Off-site, third-party provider
• Offered to multiple customers
• Relegation of security management and day-to-day operations to third party vendor.
• Customer has low degree of control & oversight of the physical and logical security aspects of a private cloud.
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Cloud Deployment Models – Private Cloud
• Customers buy, build, and manage and as such do not benefit from lower upfront capital costs and less hands-on management.
• Single Organizational tenant.
• Variety of Patterns (Dedicated, Community, Managed)
• Security management and day-to-day operation of hosts are relegated to internal IT or to a third party with contractual SLAs.
• Customer has high degree of control & oversight of the physical and logical security aspects of a private cloud.
• Easier for a customer to comply with established corporate security standards, policies, and regulatory compliance.
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Cloud Service Providers
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Become a Cloud Computing Expert In 3 Days Flat
Attend the 3-Days “Cloud Computing Workshop”
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Who will benefit?
Technical Management, Business Analysts, Engineering Teams, System
Administrators
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Q & A
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