IS700 Michel Mamdouh Cloud

8/2/2019 IS700 Michel Mamdouh Cloud

1/29

Prepared byMichel Mamdouh


2/29

Cloud Computing overview

Enablers Cloud Offerings

References


3/29

20090909_VirtualizationAndCloud 3

Virtualization andCloud Computing


4/29


Two Technologies for Agility

Virtualization:

The ability to run multiple operating systemson a single physical system and share the

underlying hardware resources

Cloud Computing:

The provisioning of services in a timely (near

on instant), on-demand manner, to allow thescaling up and down of resources


5/29


The Traditional Server Concept

Web Server

Windows

IIS

App Server

Linux

Glassfish

DB Server

Linux

MySQL

EMail

Windows

Exchange


6/29


And if something goes wrong ...

Web Server

Windows

IIS

App Server

DOWN!

DB Server

Linux

MySQL

EMail

Windows

Exchange


7/29


8/29

Underlying Enablers of cloudcomputing

Virtualization Cloud Resources are typically virtual Each machine can be dynamically allocated (since it

is virtual)

New APIs Provide dynamic resource allocation Abstract Resources

i.e.: Database Server abstracted allows

scaling of the database layer without codechanges Claims Based Authentication Model


9/29

Other Supporting Technologies

Blade Servers

Allows for high-density of servers

SAN Provides high-speed fault-tolerant storage

solutions

Multi-core Processors

Intel just announced a 48 core processorIntended specifically for cloud environments


10/29

Cloud Security

Claims Based Authentication A trusted authority (Issuer) issues a signed security

token containing a set of claims (credentials) which is

given to the application for validation The application will authenticate the user if the

security token is valid and signed by a trusted issuer


11/29

Cloud Computing Offerings

Types of Cloud offerings:

Bare Operating System

Applications

Web Services

Database Services

Customizable Application Services


12/29

Cloud Offering Examples

Bare Operating System RackspaceCloud

http://www.rackspacecloud.com/

Formerly Mosso, a division of Rackspace

Provide various Linux Distributions

Also support Sites

Web Server, both Linux and Windows

O/S Managed by hosting service


13/29


Applications Google Apps

http://www.google.com/a

Pre-built, fully functional applications

Mail

Calendar

Word Processing

Dynamic Web Pages etc.


14/29


Web Services Amazon http://aws.amazon.com/

Amazon EC2 & S3 EC2 Elastic Compute Cloud

S3 Simple Storage Service

Resizable Compute Capability Auto Scaling allocate resources based on definable

conditions

Development Environments: IBM sMash

Jboss Enterprise Application Platform

Ruby on Rails


15/2915

Case Study: Amazon Cloud

Amazon cloud components Elastic Compute Cloud (EC2)

Simple Storage Service (S3)

SimpleDB

New Features

Availability zones

Place applications in multiple locations for failovers

Elastic IP addresses

Static IP addresses that can be dynamically remapped topoint to different instances (not a DNS change)


16/2916

Amazon Cloud Users:New York Times and Nasdaq

Both companies used Amazons cloud offering New York Times

Didnt coordinate with Amazon, used a credit card!

Used EC2 and S3 to convert 15 million scanned news articles to PDF(4TB data)

Took 100 Linux computers 24 hours (would have taken months on NYTcomputers

It was cheap experimentation, and the learning curve isn't steep. Derrick Gottfrid, Nasdaq

Nasdaq Uses S3 to deliver historic stock and fund information

Millions of files showing price changes of entities over 10 minutesegments

The expenses of keeping all that data online [in Nasdaq servers] wastoo high. Claude Courbois, Nasdaq VP

Created lightweight Adobe AIR application to let users view data


17/29


Database - Zohos CloudSQL

http://www.zoho.com

Cloud based relational database


18/29


Any Nasty Details?(loads of them!)

How do I pick a provider?

Am I locked in to a provider?

Where do I put my data?

What happens to my data when I shut down?

How do I log in to my server?

How do I keep others from logging in (security)?

How do I get an IP address?

Etc.


19/29

So what about

Cloud Computing?



20/29

Suppose you are Forbes.com

You offer on-linereal time stockmarket data

Why pay for capacityweekends,overnight?


9 AM - 5 PM,M-F

ALL OTHERTIMES

Rate of

ServerAccesses


21/29


Forbes' Solution

Host the web site in Amazon's EC2 ElasticCompute Cloud

Provision new servers every day, anddeprovision them every night

Pay just $0.10* per server per hour

* more for higher capacity servers

Let Amazon worry about the hardware!

Cl d i k


22/29

Cloud computing takesvirtualization to the next step

You dont have to own the hardware

You rent it as needed from a cloud

There are public clouds e.g. Amazon EC2, and now many others

(Microsoft, IBM, Sun, and others ...)

A company can create a private one With more control over security, etc.



23/29


Goal 1 Cost Control

Cost

Many systems have variable demands

Batch processing (e.g. New York Times) Web sites with peaks (e.g. Forbes)

Startups with unknown demand (e.g. theCash for Clunkersprogram)

Reduce risk

Don't need to buy hardware until you need it


24/29


Goal 2 - Business Agility

More than scalability - elasticity!

Ely Lilly in rapidly changing health carebusiness Used to take 3 - 4 months to give a department a

server cluster, then they would hoard it!

Using EC2, about 5 minutes!

And they give it back when they are done!

Scaling back is as important as scalingup


25/29


Goal 3 - Stick to Our Business

Most companies don't WANT to do systemadministration

Forbes says:

We are is a publishing company, not a software

company

But beware:

Do you really save much on sys admin? You don't have the hardware, but you still

need to manage the OS!


26/29


27/29

Conclusions

Cloud Computing holds some strongpromises Highly Scalable

Highly Available Dynamically allocate resources

Pay only for resources that you use

Cloud Computing is not yet wellunderstood

Cloud Computing is still in its infancy


28/29


Where do we go from here?

Any ideas to keep us out of the rain?


29/29

References(links are current as of September, 2009)

VMware Inc., Virtualization Overview,http://www.vmware.com/pdf/virtualization.pdf

Todd Hoff, Amazon Architecture,http://highscalability.com/amazon-architecture, Sept. 18, 2007

Intel Corp., Technology brief: Understanding IntelVirtualization Technology,http://download.intel.com/technology/virtualization/320426.pdf

aw2.0 Ltd, Cloud BootCamp March 2009,http://www.aw20.co.uk/help/cloudbootcamp_march2009.cfm

http://www.vmware.com/pdf/virtualization.pdfhttp://highscalability.com/amazon-architecturehttp://download.intel.com/technology/virtualization/320426.pdfhttp://www.aw20.co.uk/help/cloudbootcamp_march2009.cfmhttp://www.aw20.co.uk/help/cloudbootcamp_march2009.cfmhttp://download.intel.com/technology/virtualization/320426.pdfhttp://highscalability.com/amazon-architecturehttp://highscalability.com/amazon-architecturehttp://highscalability.com/amazon-architecturehttp://www.vmware.com/pdf/virtualization.pdf

Documents

IS700 Michel Mamdouh Cloud