PERVASIVE TECHNOLOGIES CLOUD COMPUTING

Transcription

1 PERVASIVE TECHNOLOGIES CLOUD COMPUTING Electronic Transactions by Alvertis I., Biliri E., Askounis D.

2 Cloud Computing

3 What is Cloud Computing?

4 Let s use a simple analogy Imagine you just moved to a city, and you re looking for a place to live

5 Options: Build(buy) a house or Rent an apartment

6 If you build a house, there are a few important decisions you have to make

7 How big is the house? are you planning to grow a large family? Remodel, addition typically cost a lot more once the house is built

8 But, you get a chance to customize it tile Roof flooring windows floor plan lighting landscaping

9 Once the house is built, you re responsible for maintenance Hire Landscaper Electrician Plumber Heating and Cooling House Keeping Pay property tax Electricity Water Gutter Cleaning

10 How about renting?

11 Consider a builder in your city builds a massive number of apartment units

12 A unit can easily be converted Desicion Support Systems Laboratory, NTUA into a 2,3,4 or more units

13 You make fewer, simpler decisions You can start with one unit and grow later, or downsize if you have more units contracted

14 But do not You have a lot of options to customize your unit

15 triple pane windows green materials high capacity electricity high speed Internet However, builders provide you with very high quality infrastructure

16 No need to worry about maintenance cost No need to Hire landscapers, electricians, plumbers

17 Pay as You Go Just pay your rent and utilities

18 A Working Definition of Cloud Computing Cloud computing is a model for enabling convenient, ondemand 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. 5 Key Characteristics: On-demand selfservice Ubiquitous network access Location independent resource pooling Rapid elasticity Pay per use Source: NIST.

19 Virtualization In computing, virtualization refers to the act of creating a virtual (rather than actual) version of something, including virtual computer hardware platforms, storage devices, and computer network resources. Wikipedia

20 Evolution of Enterprise Computing Source: Raphael Volz, Abraham Taherivand, Cloud Computing Potentials Discussion Document, Volz Innovation GmbH, June 9, 2009

21 Main Aspects Forming a Cloud System Source: EC Expert Group, The Future of Cloud Computing. Opportunities for European Cloud Computing beyond Retrieved on March 20, 201o from

22 Moving an Application to Clouds Cloud-based applications or software as a service run on distant computers in the cloud that are owned and operated by others and that connect to users computers via the Internet and, usually, a web browser. SaaS Software as a Service PaaS Platform as a Service IaaS Infrastructure as a Service Platform as a service provides a cloud-based environment with everything required to support the complete lifecycle of building and delivering web-based (cloud) applications without the cost and complexity of buying and managing the underlying hardware, software, provisioning and hosting. Infrastructure as a service provides companies with computing resources including servers, networking, storage and data center space on a pay-per-use basis. Sources: Leymann, F. Cloud Computing: The next revolution in IT

23 Desicion Support Systems Laboratory, NTUA Cloud Services Examples IBM Smart Analytics Cloud IBM Information Archive CRM Information Management ERP Service Bus Collaboration HP Cloud Assure Complete Cloud Solutions Database Operating System Simple Storage Service (S3) Amazon EC2 IBM Computing on Demand (CoD) Storage Cloud Building

24 Cloud Deployment Models Source: NIST Cloud Computing Definition

25 Importance of Cloud Benefits Source: EC (2014). Uptake of Cloud in Europe. Follow-up of IDC Study on Quantitative estimates of the demand for Cloud Computing in Europe and the likely barriers to take-up

26 Cloud Economics If you move your data centre to a cloud provider, it will cost a tenth of the cost. Brian Gammage, Gartner Fellow Use of cloud applications can reduce costs from 50% to 90% - CTO of Washington D.C. IT resource subscription pilot saw 28% cost savings - Alchemy Plus cloud (backing from Microsoft) Preferred Hotel Group Traditional: $210k server refresh and $10k/month Cloud: $10k implementation and $16k/month George Reese, founder Valtira and enstratus Using cloud infrastructures saves 18% to 29% before considering that you no longer need to buy for peak capacity Source: Gartner stat, ComputerWeekly, 4/11/2008

27 Cloud Adoption per Industry

28 Companies using AWS According to Amazon, the number of active AWS users exceeds 1,000,000. Adobe, Airbnb, Alcatel-Lucent, AOL, Acquia, AdRoll, AEG, Alert Logic, Autodesk, Bitdefender, BMW, British Gas, Canon, Capital One, Channel 4, Chef, Citrix, Coinbase, Comcast, Coursera, Docker, Dow Jones, European Space Agency, Financial Times, FINRA, General Electric, GoSquared, Guardian News & Media, Harvard Medical School, Hearst Corporation, Hitachi, HTC, IMDb, International Centre for Radio Astronomy Research, International Civil Aviation Organization, ITV, izettle, Johnson & Johnson, JustGiving, JWT, Kaplan, Kellogg s, Lamborghini, Lonely Planet, Lyft, Made.com, McDonalds, NASA, NASDAQ OMX, National Rail Enquiries, National Trust, Netflix, News International, News UK, Nokia, Nordstrom, Novartis, Pfizer, Philips, Pinterest, Quantas, Sage, Samsung, SAP, Schneider Electric, Scribd, Securitas Direct, Siemens, Slack, Sony, SoundCloud, Spotify, Square Enix, Tata Motors, The Weather Company, Ticketmaster, Time Inc., Trainline, Ubisoft, UCAS, Unilever, US Department of State, USDA Food and Nutrition Service, UK Ministry of Justice, Vodafone Italy, WeTransfer, WIX, Xiaomi, Yelp, Zynga.

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30 Key Challenges / Issues in Cloud Computing Source:

31 QUESTIONS Dr. Alvertis I. Biliri E. - ebiliri@epu.ntua.gr