Cloud Computing

Outline

• Cloud Terms

• Comparisons

• Many Flavors of Cloud Computing

• Key Characteristics

• Architecture Type

• Who’s using Clouds today?

• Example: Eli Lilly

• Legal Issues1

What is “Cloud”?

There is no clear definition of the term “Cloud” or “Cloud Computing”– No Official Definition– Term takes on the definition of the user– Overuse the term “cloud” by eager marketer

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What is “Cloud”?

There are two popular uses of the term “cloud” in today’s I.T. conversation– Cloud Services - consumer and business

products, services and solutions that are delivered and consumed in real-time over the internet

– Cloud Computing - an emerging IT development, deployment, and delivery model that enables real-time delivery of a broad range of IT products, services and solutions over the internet

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Cloud Computing is an Evolution in IT

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Comparisons

• Grid Computing – a form of distributed computing, acting in concert to perform very large tasks

• Utility Computing – a metered service similar to a traditional public utility such as electricity

• Autonomic Computing – capable of self-management

• Cloud Computing – deployments as of 2009 depend on grids, have autonomic characteristics and bill like utilities

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Cloud Formation

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Cloud Computing is an emerging IT development, deployment and delivery model, enabling real-time delivery of products, services and solutions (i.e., enabling cloud services) over the Internet (IDC)

Cloud computing is Internet based development and use of computer technology. It is a style of computing in which typically real-time scalable resources are provided as a service over the internet (Wikipedia)

Cloud: the new home and business

network

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Many Flavors of Cloud Computing

• SaaS – Software as a Service– Network-hosted application

• PaaS– Platform as a Service– Network-hosted software development

platform

• IaaS – Infrastructure as a Service– Provider hosts customer VMs or provides

network storage

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Many Flavors of Cloud Computing (cont’d)

• DaaS – Data as a Service– Customer queries against provider’s database

• IPMaaS – Identity and Policy Management as a Service– Provider manages identity and/or access

control policy for customer

• NaaS – Network as a Service– Provider offers virtualized networks (e.g.

VPNs)8

Cloud Computing Providers

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The Cloud’s “Snowball Effect”

• Maturation of Virtualization Technology

• Virtualization enables Compute Clouds

• Compute Clouds create demand for Storage Clouds

• Storage + Compute Clouds create Cloud Infrastructure

• Cloud Infrastructure enables Cloud Platforms & Applications

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Cloud “Applications”

• SaaS resides here

• Most common Cloud / Many providers of different services

• Examples: SalesForce, Gmail, Yahoo! Mail, Quicken Online

• Advantages: Free, Easy, Consumer Adoption

• Disadvantages: Limited functionality, no control or access to underlying technology

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Cloud “Platforms”

• “Containers”, “Closed” environments

• Examples: Google App Engine, Heroku, Mosso, Engine Yard, Joyent or Force.com (SalesForce Dev Platform)

• Advantages: Good for developers, more control than “Application” Clouds, tightly configured

• Disadvantages: Restricted to what is available, other dependencies

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Cloud “Infrastructure”

• Provide “Compute” and “Storage” clouds

• Virtualization layers (hardware/software)

• Examples: Amazon EC2, GoGrid, Amazon S3, Nirvanix, Linode

• Advantages: Full control of environments and infrastructure

• Disadvantages: premium price point, limited competition

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Key Characteristics

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Colo vs. Managed vs. Cloud Hosting

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Architecture Types

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Single-Tenant vs. Multi-Tenant Architecture

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Single tenancy gives each customer a dedicated software stack – and each layer in each stack still requires configuration, monitoring, upgrades, security updates, patches, tuning and disaster recovery.

On a multi-tenant platform, all applications run in a single logical environment: faster, more secure, more available, automatically upgraded and maintained. Any improvement appears to all customers at once.

Shared infrastructure

Other apps

Server

OS

Database

App Server

Storage

Network

App 1

Server

OS

Database

App Server

Storage

Network

App 2

Server

OS

Database

App Server

Storage

Network

App 3

Who’s using Clouds today?

• Startups & Small businesses– Can use clouds for everything

• Mid-Size Enterprises– Can use clouds for many things

• Large Enterprises– More likely to have hybrid models where they

keep some things in house

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