Cloud Computing

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Due parole sul cloud computing...

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  • Caro Prof.
    Oggi bisognerebbe offrire queste 'nozioni' ai giovani molto tempo prima, rispetto ai programmi scolastici.
    Anche l'Università dovrebbe approfittare della 'Nuvola'.
    Grazie per l'offerta formativa.
    Grazie.
       Reply 
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Cloud Computing

  1. 1. CloudComputing modelli, servizi, criticità e aspettative <br />Prof. Stefano Epifani<br />Sapienza, Università di Roma<br />http://blog.stefanoepifani.it<br />Stefano.epifani@uniroma1.it<br />
  2. 2. Cosa è?<br />
  3. 3.
  4. 4.
  5. 5. Cosa NON è?<br />(o almeno non limita ad essere…)<br />
  6. 6. Forrester: “a formofstandardizedIT-basedcapability– suchas Internet based Service, software, or IT infrastructure – offeredby a service provider thatis accessibile via Internet protocolsfromany computer, isalwaysavailable and scaledautomaticallytoadjusttodemand, iseitherpay per use or advertising based, has Web or programmatic-basedcontrolinterfaces, and enables full customer self-service”<br />Eucapyptus Project: “ElasticComputing, Utility Computing, and CloudComputing are (possibilysynonymous) termsreferringto a popularSLA-basedcomputingparadigmthatallowsusersto “rent” Internet-accessibilecomputingcapacity on a for-feebasis”<br />
  7. 7. Tecnologia<br />Business Model<br />
  8. 8. A type of computing that relies on sharing computing resources rather than having local servers or personal devices to handle applications. The goal of cloud computing is to apply traditional supercomputing, or high-performance computing power, normally used by military and research facilities, to perform tens of trillions of computations per second.<br />To do this, cloud computing networks large groups of servers, usually those with low-cost consumer PC technology, with specialized connections to spread data-processing chores across them. This shared IT infrastructure contains large pools of systems that are linked together. Often, virtualization techniques are used to maximize the power of cloud computing.<br />The standards for connecting the computer systems and the software needed to make cloud computing work are not fully defined at present time, but are often based on open standards and open source software which link together computers.<br />Cloud computing has started to obtain mass appeal in corporate data centers as it enables the data center to operate like the Internet work through the process of enabling computing resources to be accessed and shared as virtual resources in a secure and scalable manner. <br />Fonte: http://www.webopedia.com/TERM/c/cloud_computing.html<br />
  9. 9. Cosa c’è nella nuvola?<br />
  10. 10. Infrastruttura gestita da un operatore che la mette a disposizione di più attori<br />Infrastruttura privata, ad uso esclusivo di una organizzazione<br />Cloud condivisa da un cluster di utenti accomunati da elementi condivisi<br />Infrastruttura composta da Public e Private Cloud<br />
  11. 11.
  12. 12. The next big thing?<br />2010+<br />Cloud<br />2000s<br />SOA<br />1990s<br />Web<br />1980s<br />Client-Server<br />1970s<br />Mainframe<br />Fonte: Microsoft Research<br />
  13. 13. “Forrester feels that cloud computing is one of the Top 15 Technology Trends and that it warrants investment now so you can gain the experience necessary to take advantage of it in its many forms to transform your organization into a more efficient and responsive service provider to the business”<br />-Forrester, October 13, 2009, <br />http://blogs.forrester.com/it_infrastructure/2009/10/cloud-computing-belongs-on-your-3year-roadmap.html<br />
  14. 14. “As enterprises seek to consume their IT services in the most cost-effective way, interest is growing in drawing a broad range of services (for example, computational power, storage and business applications) from the &quot;cloud,&quot; rather than from on-premises equipment. The levels of hype around cloud computing in the IT industry are deafening, with every vendor expounding its cloud strategy and variations, such as private cloud computing and hybrid approaches, compounding the hype”<br />Gartner&apos;s 2009 Hype Cycle Special Report<br />
  15. 15. Next?<br />
  16. 16.
  17. 17. Il 69% degli americani<br />usa sistemi Cloud<br />Fonte: “Cloud Computing Gains in Currency”, Pew Research, May 2008 <br />
  18. 18. Perché?<br />
  19. 19. DImensionamento<br />Tempo <br />Previsioni<br />Richieste reali<br />Dimensionamento infrastrutture<br />Comportamento del cloud<br />
  20. 20. I vantaggi della nuvola…<br />Valori medi da 1 (basso impatto) a 5 (elevato impatto)<br />In partnership con<br />© ZeroUno - Inchiesta Cloud Computing & Saas: quale evoluzione? – novembre 2009 – Campione di 103 aziende<br />
  21. 21. Sappiamo di cosa <br />si sta parlando?<br />
  22. 22. !!!<br />Valori medi da 1 (scarsa conoscenza) a 5 (massima conoscenza)<br />In partnership con<br />© ZeroUno - Inchiesta Cloud Computing & Saas: quale evoluzione? – novembre 2009 – Campione di 103 aziende<br />
  23. 23. Quale nuvola?<br />
  24. 24. Valori %, risposta multipla<br />Aziende con conoscenza del Cloud Computing Medio-Alta<br />In partnership con<br />© ZeroUno - Inchiesta Cloud Computing & Saas: quale evoluzione? – novembre 2009 – Campione di 103 aziende<br />
  25. 25. Quali impatti<br />sull’azienda?<br />
  26. 26. Valori %, risposte multiple<br />In partnership con<br />© ZeroUno - Inchiesta Cloud Computing & Saas: quale evoluzione? – novembre 2009 – Campione di 103 aziende<br />
  27. 27. L’organizzazione<br />
  28. 28. Valori %, risposta multipla<br />In partnership con<br />© ZeroUno - Inchiesta Cloud Computing & Saas: quale evoluzione? – novembre 2009 – Campione di 103 aziende<br />
  29. 29. Quanto è pronta l’organizzazione?<br />Valori %<br />
  30. 30. Le tecnologie<br />
  31. 31. Valori %, risposta multipla<br />In partnership con<br />© ZeroUno - Inchiesta Cloud Computing & Saas: quale evoluzione? – novembre 2009 – Campione di 103 aziende<br />
  32. 32. Quanto è pronto l’IT?<br />Valori %<br />In partnership con<br />© ZeroUno - Inchiesta Cloud Computing & Saas: quale evoluzione? – novembre 2009 – Campione di 103 aziende<br />
  33. 33. L’IT è un “costo” <br />oppure un “servizio”?<br />Se si, il cloudcomputing<br />è una delle soluzioni?<br />

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