Introduction to Cloud Computing Unit -1 CLOUD COMPUTING

Outline What is cloud computing ? Understanding Cloud Computing Cloud Computing services History Advantages & Disadvantages Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 1

What is cloud computing ? UNDERSTANDING CLOUD COMPUTING DEFINITION HISTORY Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University What is cloud computing ? 2

What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 3

What is Cloud Computing? = Computing and software resources that are delivered on demand, as service.. 7 4 Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University

Traditional software with licenses Understanding Cloud Computing Software as a services Traditional software with licenses Per Monthly CLOUD COMPUTING Pay as you Go Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University What is cloud computing ? 5

What is cloud computing ? AMAZON WEBSERVICES WINDOW AZURE Google App Engine CLOUD ASSURE IBM CLOUDBURST What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 5

IAAS SAAS PAAS UTILITY COMPUTING VIRTUALIZATION What is cloud computing ? IAAS SAAS PAAS VIRTUALIZATION UTILITY COMPUTING What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 6

Krishnaveni S, Assistant Professor ,Software Engineering What is cloud computing ? “Cloud computing is a style of computing where massively scalable IT-related capabilities are provided as a service across the Internet to multiple external customers” “Cloud computing: A pool of abstracted, highly scalable, and managed infrastructure capable of hosting end-customer applications and billed by consumption” “Cloud computing is Web-based processing, whereby shared resources, software, and information are provided to computers and other devices (such as smart phones) on demand over the Internet.” Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University What is cloud computing ? 7

What is cloud computing ? “Cloud computing is a style of computing where massively scalable IT-related capabilities are provided as a service across the Internet to multiple external customers” “Cloud computing: A pool of abstracted, highly scalable, and managed infrastructure capable of hosting end-customer applications and billed by consumption” “Cloud computing is Web-based processing, whereby shared resources, software, and information are provided to computers and other devices (such as smart phones) on demand over the Internet.” Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University What is cloud computing ? 8

What is cloud computing ? “Cloud computing is a style of computing where massively scalable IT-related capabilities are provided as a service across the Internet to multiple external customers” “Cloud computing: A pool of abstracted, highly scalable, and managed infrastructure capable of hosting end-customer applications and billed by consumption” “Cloud computing is Web-based processing, whereby shared resources, software, and information are provided to computers and other devices (such as smart phones) on demand over the Internet.” What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 9

What is cloud computing ? “Cloud Computing is a general term used to describe a new class of network based computing that takes place over the Internet” Platforms : a collection of integrated and networked hardware, software and Internet infrastructure Communication and transport Networking services to clients What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 10

What is cloud computing ? In addition, the platform provides on demand services, that are always on, anywhere, anytime and any place. Pay for use and as needed, elastic scale up and down in capacity and functionalities The hardware and software services are available to general public, enterprises, corporations and businesses markets What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 11

Definition Of Cloud Computing "Clouds are a large pool of easily usable and accessible virtualized resources (such as hardware, development platforms and/or services). These resources can be dynamically reconfigured to adjust to a variable load (scale), allowing also for an optimum resource utilization. This pool of resources is typically exploited by a pay-per-use model in which guarantees are offered by the Infrastructure Provider by means of customized SLA“ - Vaquero, L., L. Rodero-Merino, et al. (2008) What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 12

Cloud Computing- buzz word Cloud computing is simply a buzzword used to repackage grid computing and utility computing, both of which have existed for decades.” What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 13

What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 14

Evolution Of Cloud What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 17

History and Origin Of Cloud S3 Launches/EC2 Launch of Amazon web services The arrival of Salesforce.com Supercomputers/Mainframe 2006 2002 1990 1960 Google App / Azure 2008 - 2009 The first milestone for Cloud Computing Launches of Google App Engine/Windows Azure Beta 1960 :- Supercomputers and Mainframe (massive computing was done through utility of supercomputers. The problem with this set-up arises from the cost needed to create a supercomputer or mainframe to the cost of maintaining it in optimal condition. As a result, leading to the idea of an “intergalactic computer network” by J.C.R. Licklider, who was responsible for enabling the development of ARPANET (Advanced Research Projects Agency Network) in 1969. His vision was for everyone on the globe to be interconnected and accessing programs and data at any site, from anywhere. Afterwards, John McCarthy who proposed the idea of computation being delivered as a public utility, similar to the service bureaus. 1990 :- The first milestones for cloud computing (The arrival of Salesforce.com, which pioneered the concept of delivering enterprise applications via a simple website. July 2002 :- Launch of Amazon web services (making information available through a web service focused as a retailer, provided a suite of cloud-based services including storage, computation and human intelligence. March 2006 and August 2006 :- S3 and EC2 (Elastic Compute Cloud) - infrastructure-as-a-service provider - making core computing infrastructure service (Cloud infrastructure) - pricing model ‘pay-per-use’ - shift of Amazon from being just a retailer to a strong player in the technology space - EC2 as a commercial web service that allows small companies and individuals to rent computers on which to run their own computer applications. April 2008 :- Launch of Google App Engine - first pure play technology company into the cloud computing market (browser-based enterprise applications) - a developer tool enables you to run your web applications on Google’s infrastructure. - Google App’s features - Dynamic web serving, persistent storage, automatic scaling and load balancing, Google API’s for authentication users and sending email November 2009 :- Launch of Windows Azure Beta belonged to Microsoft (the same concept as Google App) 2010 :- Concerns about the security of their corporate data in the cloud. Security, data privacy, network performance are likely to lead to a mix of cloud computing centers both within company firewall and outside of it. Learn how to secure, manage and monitor the growing range of external resources residing in the cloud including the improvement of faster processors and connections. **Amazon Launches EC2 Transaction Based Web Hosting Platform What is cloud computing ? Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 17

History The general idea behind the technology dates back to the 1960s, when John McCarthy wrote that “computation may someday be organized as a public utility.” Then, grid computing, a concept that originated in the early 1990s as an idea for making computer power as easy to access as an electric power grid also contributed to cloud computing. What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 18

History One of the first movers in cloud computing was Salesforce.com, which in 1999 introduced the concept of delivering enterprise applications via a simple website. In 2002 Amazon started Amazon Web Services, providing services like storage, computation and even human intelligence. The year 2006 also saw the introduction of Amazon’s Elastic Compute cloud (EC2) as a commercial web service that allowed small companies and individuals to rent computers on which to run their own computer applications. What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 19

History Then came Google Docs in 2006, What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 20

History But 2009 marked a key turning point in the evolution of cloud computing, with the arrival of browser based cloud enterprise applications, with the best known being Google Apps Working on Google Chrome. What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 21

History In 2009 , Microsoft’s enter into cloud computing with the launch of Windows Azure (cloud platform) in November. What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 22

History Office 365 was initially announced in the autumn of 2010, and was made available to the public on June 28, 2011 by Microsoft. What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 23

History Microsoft Office 2013 (also called Office 2013 and Office 15) is the upcoming version of the Microsoft Office productivity suite Office 2013 is more "cloud-based" than previous versions. This is notable as the default save location is the user's SkyDrive. Office 365: Microsoft enterprise software offered through the cloud. What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 24

History What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 25

Microsoft windows Azure Savvis Google App Engine Vmware cloud Cloud Computing Service Providers Amazon Microsoft windows Azure Savvis Google App Engine Vmware cloud Rack space Go grid What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 26

Cloud Advantages & Disadvantages Reduced Hardware equipment for end users Improved Performance Lower Hardware and Software Maintenance Instant Software Updates Accessibility Pay for what we use Disadvantages Security Issues Internet connection Features may be limited Location of Servers Speed What is cloud computing ? History Krishnaveni S, Assistant Professor ,Software Engineering ,SRM University 27