E-Business Technology
By: Bhupesh Sardana BCM WS 2010-11 Date: 21-Jan-2011
Presented to:
Prof. Dr. Eduard Heindl
Business Case
Your business is growing exponentially. Your computing need &
usage is getting bigger with every passing day. Would you add servers & other hardware's to meet the new demand?
Assume, Recession is back & your business is losing customers.
The servers & hardware's you added during last quarter’s peak season is now idle. Will you sale them?
season is now idle. Will you sale them?
That’s where Cloud Computing
comes to rescue you !!
Demand keeps on changing based on world/regional economy, sometimes seasonal traffic burst as well. What will you Do?
Introduction to Cloud computing Purpose & Benefits & Types of Cloud Architecture : Services & Business model
Agenda
Architecture : Services & Business model
Cloud Computing offerings (Google & Amazon)
Comparison between Google & Amazon. Q&A
Total Presentation Time: 30 Min Q&A Session: 10 Min
What is Cloud Computing?
In late 90s or even now, ask any web developer, solution
architect or anyone involved in web application
development in any capacity: Which symbol do you use
to represent Internet on numerous white-board
meetings?
Obviously the most widely used metaphor for Internet
was/is Cloud. Cloud computing has derived its name
was/is Cloud. Cloud computing has derived its name
from the same line of thinking.
Cloud Computing is a *style of computing which must cater to the following computing needs:
1. Dynamism 2. Abstraction
3. Resource Sharing
* Gartner’s phrase
A Working Definition of Cloud Computing by NIST
“ 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
applications, and services) that can be
rapidly provisioned and released with
minimal management effort or service
provider interaction. “
Source: NIST Definition of Cloud Computing v15, csrc.nist.gov/groups/SNS/cloud-computing/cloud-def-v15.doc
NIST : The National Institute of Standards and Technology
What is the purpose and benefits?
Cloud computing enables companies and applications, which are system infrastructure dependent, to be infrastructure-less.
By using the Cloud infrastructure on “pay as used and on
demand”, all of us can save in capital and operational investment!
Clients can:
Put their data on the platform instead of on their own desktop PCs and/or on their own servers.
They can put their applications on the cloud and use the servers within the cloud to do processing and data
manipulations etc.
Types of Cloud / Cloud Deployment Models
• Public cloud
– Sold to the general public, mega-scale infrastructure
• Private cloud / Internal cloud
• Private cloud / Internal cloud
– enterprise owned or leased
• Hybrid cloud
– composition of two or more clouds, part of the
service infrastructure runs in private clouds while
the remaining part runs in public clouds
Cloud Computing Components / Types of Services.
Source: David S. Linthicum, Cloud computing and SOA convergence in your enterprise, Chapter 1, Page No 11
Software
as a
Service (SaaS)
Service-driven business model
Infrastructure as a Service (IaaS)
Platform as a Service (PaaS)
Service (SaaS)
Refers to on-demand provisioning of infrastructural resources, usually in terms of VMs.
End user has full controls over the virtualized computer instance, and can customize the instance accordingly.
This is the base layer of the cloud stack.
Infrastructure as a Service (IaaS)
and can customize the instance accordingly.
IaaS is charged on a utility basis depending on the consumption of the resources.
Advantages: Pay per use, Instant Scalability, Security, Reliability, APIs
Examples: Amazon EC2 and GoGrid.
Refers to providing platform layer resources, including operating system support and software development frameworks.
It delivers a computing platform and solution stack as a service.
Hides all the complexity of managing the underlying hardware,
Platform as a Service (PaaS)
Hides all the complexity of managing the underlying hardware, provides all the facilities required to support the complete lifecycle of building and deploying web applications and services entirely from the internet.
Examples: Google App Engine, Microsoft Windows Azure and Force.com.
Refers to providing on demand applications, Provider delivers its software as a service to be used by customers on demand.
All the functions of a sophisticated traditional application to many customers through a Web browser.
This is the Top most layer of the cloud computing stack - directly consumed by end user.
Software as a Service (SaaS)
many customers through a Web browser.
Little or no code is running on the Users local computer.
Eliminates customer worries about application servers, storage, application development and related, common concerns of IT.
Examples: Salesforce.com, Rackspace and SAP Business By Design.
Some Commercial Cloud Offerings
Amazon Web Services (AWS) is a set of cloud services, providing cloud-based computation, storage and other functionality that enable organizations and
individuals to deploy applications and services on an on-demand basis and at
commodity prices. Amazon Web Services’ offerings are accessible over HTTP, using REST and SOAP protocols.
AWS Management Console
Pricing.
Source & for more Information: http://aws.amazon.com
/Google is the leader in search services on the
Internet and has a significant presence and
properties in advertising, collaboration, e-mail, and
social networking sites.
Google has massively scaled data centers with
customized caching algorithms that host the fastest
search engine in the world.
Google's gmail offers users to host their emails on Google servers, besides providing a web interface to access them. Gmail is free for individuals. For business users,
Google docs is a web-based software for
building documents. It has the functionality to build text documents, spreadsheets and
presentations
Google calendaris a browser based scheduler. Its feature set is rich and includes
Google offerings in Software as a Service (SaaS).
feature set is rich and includes
daily/weekly/monthly view, multiple calendars for a user, and ability to search events.
Picasais a free Google tool to edit images. Picasa allows you to upload and share images and
videos on Google's data centers.
Google Groupsallows users to host discussion forums. Google Groups allow users to create messages online or via email. Access to Google Groups is completely free
Source for Piicture: http://www.itechfreak.com/google-cloud-computing/
In the Platform as a Service (PaaS) space Google is a market
leader. Google AppEngine is Google's offering in the PaaS space.
Google AppEngine is a developer platform hosted on Google's cloud The database available is a non- relational database.
Database can be accessed with GQL
Google offerings in Platform as a Service (PaaS).
Database can be accessed with GQL (Google Query Language). GQL has SQL like syntax.
Support & Pricing
.http://code.google.com/appengine/
http://www.google.com/apps/
Sources & for More Information
Comparison Between two major Cloud
Computing service provider.
Offerings
EC2 (Elastic Compute Cloud) plus S3 (Simple
Storage Service)
Google App Engine Classes of
Utility
Computing
Infrastructure service Platform service
Types of General-purpose General-purpose Windows Types of
Applications
General-purpose applications
General-purpose Windows Applications
Auto Scaling
Automatically changing the number of instances based on parameters that users
specify
Automatic Scaling which is transparent to users
Data‐‐‐‐Storage System
Elastic Block Store; Amazon Simple Storage Service (S3);
Amazon SimpleDB
BigTable and MegaStore.
Persistent storage with queries, sorting and
transactions
Operating
Systems Linux Linux, Microsoft Windows
and Mac OS X Supported
Languages Linux and Red Hat Enterprise Python Applications &
Framework
MySQL Enterprise and OpenSolaris
Django. Services include URL Fetch, Memcache and
image manipulation Limited to 20 virtual computer
Cntd.
Scalability
Limited to 20 virtual computer instances during beta period;
additional instances are allowed
Up to 5 million page views per month with preview
release
Security
Provides Web‐service
interfaces to configure firewall settings that control network access to and between groups
of instances
Service runs on Google’s secure infrastructure. App Engine provides a secure
sandbox environment
Resource
Abstraction Tech. &
Virtualization Technology
Server Virtualization (Xen) Technique-specific sandbox
Redundancy
Ability to place server instances in multiple
‐
Cntd.
Redundancy Features
instances in multiple locations and elastic IP
addresses
Fault‐tolerant servers
Control Panel Web‐service interface Proprietary, the Administration Console Development Tools Command‐line tools for
building AMIs
Python runtime environment
References.
Baun , Christian, Kunze , Marcel, Nimis , Jens, Tai , Stefan: Cloud Computing : Web- basierte dynamische IT-Services, Springer-Verlag Berlin Heidelberg, 2010
David S. Linthicum, Cloud computing and SOA convergence in your enterprise: a step- by-step guide, Addison-Wesley, 2009
Ling Qian, Zhiguo Luo, Yujian Du, and Leitao Guo, Cloud Computing: An Overview.
Qi Zhang, Lu Cheng, Raouf Boutaba: Cloud computing: state-of-the-art and research challenges Published online: 20 April 2010
challenges Published online: 20 April 2010
White Paper by ThinkGrid: Introduction to cloud computing, http://www.thinkgrid.co.uk/.
White paper by LAD ENTERPRIZES, INC. www.ladenterprizes.com
http://www.gogrid.com/
http://www.computinghistory.org.uk/cgi-bin/sitewise.pl?act=det&p=3183
http://www.gartner.com/it/page.jsp?id=742913
http://www.datalinksc.com/cloud_computing.html
http://cloudcomputing.sys-con.com/node/811519
http://www.dolcera.com/wiki/index.php?title=Cloud_Computing
