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What is cloud computing ? History Virtualization Cloud Computing hardware Cloud Computing services Cloud Architecture Advantages & Disadvantages Outline 2

What is cloud computing ? History VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 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.” 3

What is cloud computing ? History VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 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.” 4

What is cloud computing ? History VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 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.” 5

What is cloud computing ? History VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 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 7

History VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 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 ? 8

History VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages What is cloud computing ? 6

History What is cloud computing ? VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages History 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. The general idea behind the technology dates back to the 1960s, 9

History What is cloud computing ? VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 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. 10

History What is cloud computing ? VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages History Then came Google Docs in 2006, 11

History What is cloud computing ? VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 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. 12

History What is cloud computing ? VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages History In 2009, Microsoft’s enter into cloud computing with the launch of Windows Azure (cloud platform) in November. 13

History What is cloud computing ? VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages History Office 365 was initially announced in the autumn of 2010, and was made available to the public on June 28, 2011 by Microsoft. 14

History What is cloud computing ? VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 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. 15

History What is cloud computing ? VirtualizationCloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages History 16

History Virtualization Cloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages Virtualization Virtualization is “something which is not REAL, but displays the full qualities of the REAL”. Virtualization : hardware platform, operating system, storage device, network resources, Software implementation. What is cloud computing ? 17

Virtualization History What is cloud computing ? Virtualization Cloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages Hardware Operating System App Traditional Stack Hardware OS App Hypervisor OS Virtualized Stack 18

Virtualization History What is cloud computing ? Virtualization Cloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages Types of virtualization Hardware virtualization Desktop virtualization 19

Virtualization History What is cloud computing ? Virtualization Cloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages In hardware virtualization, the host machine is the actual machine on which the virtualization takes place, and the guest machine is the virtual machine. The words host and guest are used to distinguish the software that runs on the actual machine from the software that runs on the virtual machine. The software or firmware that creates a virtual machine on the host hardware is called a hypervisor or Virtual Machine Manager. Hardware virtualization 20

Virtualization History What is cloud computing ? Virtualization Cloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages Desktop virtualization (sometimes called client virtualization) is a concept which separates a personal computer desktop environment from a physical machine using the client–server model of computing. Desktop virtualization 21

Virtualization History What is cloud computing ? Virtualization Needs of cloud ComputingCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 22

Virtualization History What is cloud computing ? Virtualization Cloud Computing hardwareCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages 23

History What is cloud computing ? VirtualizationCloud Computing servicesCloud ArchitectureAdvantages & Disadvantages Cloud Computing hardware Processor Intel® Xeon® processor 5500 and 5600 series Six-core Intel® Xeon® Quad-core Intel® Xeon® Memory 128 GBs 1333 MHz Hard Drive 12 TB SATA 10k RPM Network Controller 1 Dual port Broadcom BCM 5716 Price 1457 EUR PowerEdge 11G T410 Tower Server 24

History What is cloud computing ? VirtualizationCloud ArchitectureAdvantages & DisadvantagesNeeds of cloud ComputingServices on Cloud Computing Cloud Computing services  What cloud computing can provide ? Cloud Computing services 25

History What is cloud computing ? VirtualizationCloud ArchitectureAdvantages & DisadvantagesCloud Computing hardware Cloud Computing services Software as a Service  Software hosted in the cloud  Web browser access  Google Docs  Customers can utilize greater computing power while saving on the following – Cost – Space 26

History What is cloud computing ? VirtualizationCloud ArchitectureAdvantages & DisadvantagesCloud Computing hardware Cloud Computing services Platform as a Service  Host provides software development platform  Customer creates software  Host provides hardware  Networks  Servers  storage 27

History What is cloud computing ? VirtualizationCloud ArchitectureAdvantages & DisadvantagesCloud Computing hardware Cloud Computing services Infrastructure as a Service  Computer infrastructure as a service  Host provides:  Servers  Clients  Networks  Infrastructure providers can dynamically allocate resources 28

History What is cloud computing ? VirtualizationCloud ArchitectureAdvantages & DisadvantagesCloud Computing hardware Cloud Computing services 29

History What is cloud computing ? VirtualizationCloud ArchitectureAdvantages & DisadvantagesCloud Computing hardware Cloud Computing services 30 Public Clouds Private Clouds Hybrid Clouds

History What is cloud computing ? VirtualizationCloud ArchitectureAdvantages & DisadvantagesCloud Computing hardwareCloud Computing services Cloud Architecture 31

History What is cloud computing ? VirtualizationCloud ArchitectureAdvantage & DisadvantageCloud Computing hardwareCloud Computing services Advantages & Disadvantages Advantage & Disadvantage 32

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