Introduction to Cloud Computing, Lecture notes of Information Technology

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Sridhara T V

Contents

➢Introduction and overview of Cloud Computing

➢Why learn cloud computing

➢Understanding terminology and technology of Cloud Computing

➢Deployment and service models

➢Top players in Cloud Computing

➢Hardware and software virtualization

➢Securing resources and data in cloud

➢Migrating apps, products/services to cloud

➢Developing on cloud platform

➢Overview of AWS

➢Demo using AWS

What is Cloud Computing

➢Cloud Computing is a collection of high speed inter-connected hardware,

software, storage and other infrastructure delivered over internet

➢The service provider is responsible for provisioning, maintaining,

performing patch updated and other complex activities thus enabling

customer to focus on their business

➢Reduces the complexity of servers, licenses and networks

➢Shared pool of configurable computing / networking / storage resources

➢Provide on-demand services and charge only for the usage

➢Provides a means by which you can access apps as utilities over the

internet

➢Customer gets theoretically infinite capacity of infrastructure

➢Provides Scalability, Reliability and High Availability

Why Learn Cloud Computing

➢Everyone is talking about it!

➢Seen as acceleration in adoption of cloud

computing and cloud services

➢It is one of the top 5 technology trends to

watch out for next 4-5 years – report by

Gartner

The worldwide public cloud services market is projected to grow 17. 3 percent in 2019 to total $ 206. 2 billion, up from $ 175. 8 billion in 2018 , according to Gartner, Inc. In 2018 , Gartner forecasts that the market will grow 21 percent, up from $ 145. 3 billion in 2017. The fastest-growing segment of the market is cloud system infrastructure services (infrastructure as a service or IaaS), which is forecast to grow 27. 6 percent in 2019 to reach $ 39. 5 billion, up from $ 31 billion in 2018 (see Table 1 ). By 2022 , Gartner expects that 90 percent of organizations purchasing public cloud IaaS will do so from an integrated IaaS and platform as a service (PaaS) provider, and will use both the IaaS and PaaS capabilities from that provider.

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Deployment Models

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Service Models

SaaS

(End users)

PaaS

( Application

developers)

IaaS

(Network

architect)

Value

Visibility

to the End

Users

Essential Characteristics

Advantages and Benefits of Cloud Computing

Pros and Cons of Cloud Computing

Compliance / Regulatory

Requirements

Security and Privacy

Uncertainty around

Interoperability, Portability

Low Bandwidth

Reduced Costs

Efficient Resource Sharing

No hassle on Maintenance

Pay-As-You-Use

Swift roll-out of new

Services

High Availability

Cloud Computing Use Case

➢Web and Mobile Applications

➢Backup and Archive

➢Social Networking

➢Disaster Recovery

➢Development and Testing

➢Multi-region hosting

➢Big data Analytics

➢AI/ML

➢Email

➢POC

Cloud Customers

Gartner Magic Quadrant

Why choose cloud

➢Economics

➢Cost advantages resulting in the ability to spread fixed costs over many

customers

➢Virtualization adaption

➢Abstraction of software from hardware

➢Maturity of technology