Introduction to AWS

AWS Cloud
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Introduction
●Definition of Cloud
●Attributes of Cloud
●History of Cloud
●Technology behind Cloud
●Advantages and Disadvantages of Cloud
●Application to Business
●Cloud Service Providers
●Cloud Computing Terminologies
●Cloud Computing Architecture

Cloud Definition
●Cloud computing is a model for enabling convenient, on-demand
network access to a shared pool of configurable computing resources
(e.g., networks, servers, storage, applications, and services) that can
be rapidly provisioned and released with minimal management effort
or service provider interaction.
●This cloud model promotes availability and is composed of five
essential characteristics, three service models, and four deployment
model

Essential Characteristics of AWS
●On-demand self-service
●Broad network access
●Resource pooling
●Rapid elasticity
●Measured service

Evolution of Cloud
●1960 John McCarthy used the term “Public Utility”
● Key Role by Amazon -
● 2006 Amazon introduced the Amazon Web Services
●Eucalyptus Open source Private Cloud platform
●Open Stack
●Microsoft Azure
● Rack space
● Sales Force

Job Trends from indeed.com

Public Cloud Adoption

AWS Revenue

Cloud Service Model 1
●Cloud Software as a Service (SaaS)
–Use provider’s applications over at work
–E.g Sales force ,Google Apps

Cloud Service Models 2
●Cloud Platform as a Service (PaaS)
–Deploy customer-created applications to a cloud
–Microsoft Azure , PHP cloud.

Cloud Service Model 3
●Cloud Infrastructure as a Service (IaaS)
–Rent processing, storage, network capacity, and other
fundamental computing resources
–Amazon AWS ,Rackspace ,Microsoft Azure

Cloud Models

Cloud Advantages
●Less Expensive ( No upfront capex costs )
●Scalable
●Elasticity and Agility

Cloud Disadvantages
●Security ( Data located in other countries )
●Data Transfer charges are additional
●Migration from one public cloud to another is a challenge

Application To Business
●Applications Suitable for Cloud 3 Tier applications capable of horizontal Scaling The
user base can not be predicted initially. Applications which can be run on open
architecture like Linux ,Wintel.
●Applications not suitable for cloud Applications running on proprietary H/W. High
volume OLTP applications like stock exchanges. Application with regulatory restrictions.

Benefits of Cloud to Business
●No upfront Capex cost
●Can start with a small setup to service the consumers
●Elastic Growth
●Pay as per you go
●Provisioning of the H/W and Applications on the fly

Ecommerce Business
●Business wants to sell services and products on the web
●Business does not have an idea about the YOY growth
●Investor doesn’t want to invest upfront
●Needs IT infrastructure and Applications to be dynamic and should be able to handle
the load
●The setup should provide redundancy
● Should be able to provision the applications near the users across countries
●Will pay only for the services used

Cloud a Virtualization
●IS Virtualization a Cloud ?
●Virtualization is a technology used in cloud

Virtualization
●Virtualization has become the fundamental building block of cloud
●Priced and Open source products in the market
●Public cloud providers customize either open source or priced products to suit their
needs

Advantages of Virtualization
●Improved utilization of H/W resources
●Reduced Management costs Easier Administration
● Improved Flexibility
● Reduction in Down time
● Migration is easy
● Elimination of Compatibility issues
● Rapid Deployment

Enterprise Virtualization Products
●VMWARE ESXi – Currently the market leader
● XEN – Open source product .Many vendors modified the code and came up with their
own products e.g Citrix. Oracle VM. Amazon uses XEN for AWS cloud
● KVM – Kernel based virtualization , this uses the H/W virtualization available on the
cpus.

Deployment Models of Cloud
●Private cloud
–enterprise owned or leased
● Community cloud
–shared infrastructure for specific community
●Public cloud
–Sold to the public, mega-scale infrastructure
●Hybrid cloud
–composition of two or more clouds

AWS Service Categories

AWS Architecture

AWS EC2 Elastic Compute

Compute and Networking Services

Amazon VPC

AWS Glacier

AWS DynamoDB

AWS Elastic Cache

AWS SQS Service

Introduction to AWS

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