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DESCRIPTIONCloud ComputinG. Presented by Jeremy Olson CPE 401 Spring 2011. Roadmap. What is cloud computing? Short history Essential characteristics Service models Deployment models Commonly used services today. What is cloud computing?. - PowerPoint PPT Presentation
Cloud ComputinGPresented by Jeremy OlsonCPE 401 Spring 2011RoadmapWhat is cloud computing?Short historyEssential characteristicsService modelsDeployment modelsCommonly used services todayWhat is cloud computing?Basically a paradigm to describe accessing applications and data using an internet browser, instead of installing and running programs on PCs.
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 rapidly provisioned and released with minimal management effort or service provider interaction. This cloud model promotes availability and is composed of five essential characteristics, three service models, and four deployment models.
Cloud computing offers the promise of massive cost savings combined with increased IT agility.
Basically, cloud computing is a paradigm to describe storing and accessing applications and data using an internet browser as opposed to installing and running programs on a personal computer. So you access all of your applications from the internet. This allows for on-demand access to data through electronic devices from anywhere at any time.3What is cloud computing?
Google document4What is cloud computing?
Grooveshark music player completely free, streaming music. Can choose individual albums/songs; availability depends on users uploading music to the site.5Brief history Cloud symbol representing underlying infrastructure of the InternetComputing as a public utility John McCarthyThe Challenge of the Computer Utility, Douglas Parkhill
Why is it called cloud computing? Cloud is used as a metaphor for the Internet; when drawn to show typical client/server relationships, the hosts are connected through a cloud symbol representing the underlying network architecture, layers and protocols that make up the Internet. This symbol abstracts an immensely complicated infrastructure in order to focus on some higher level point of computer network interest.
The idea of cloud computing is not new. The core concept can be traced back to John McCarthy in the 1960s, who said computation may someday be organized as a public utility. What he was trying to say is that the computing, or in this case the Internet, will become so ubiquitous that it would inevitably be treated like the electric or water industries which provide public utilities so that consumers dont need to concern themselves with pumping their own water or generating their own electricity. Much in the same way, users no longer need to install their own software or maintain complex systems; that is all taken care of in cloud computing for them.
This idea of computing as a public utility was explored in Douglas Parkhills 1966 book, The Challenge of the Computer Utility.
Picture from http://www.drbackup.com.au/images/Cloud_Diagram.gif?390, accessed on 4/24/116Essential CharacteristicsOn-demand self-serviceBroad network accessResource poolingRapid elasticityMeasured serviceAs previously mentioned, cloud computing can be defined by 5 essential characteristics, 3 service models and 4 deployment models.
On-demand self-service: Consumer can automatically utilize computing capabilities, like server time and storage. There is no need for human interaction with each services provider.
Broad network access: Services are available over the network and can be accessed through standard mechanisms like smart phones, PCs, PDAs.
Resource pooling: Resources are pooled to serve multiple consumers, with different physical and virtual resources being dynamically allocated and reallocated according to consumer demand. Along with this comes a sense of location independence, in that the user has no direct control or possibly knowledge of the exact location of the resources provided. But the user might be able to specify their location at some higher abstraction level.
Rapid elasticity: Capabilities are rapidly and elastically provisioned, almost automatically. To the consumer, the capabilities available for provisioning seem unlimited and can be purchased in any quantity at any time.
Measured service: Systems automatically control and optimize resource-use by monitoring, controlling, and reporting, thus providing transparency for both the provider and consumer of the utilized service.7Service modelsCloud Software as a Service (SaaS)Cloud Platform as a Service (PaaS)Cloud Infrastructure as a Service (IaaS)Cloud Software as a Service: The capability provided to the consumer is to use the providers applications running on a cloud infrastructure. Applications can be accessed by different devices through a client interface such as a browser (like browser based email).
Cloud Platform as a Service: capability provided is to deploy onto the cloud infrastructure consumer-created or acquired applications created using programming languages and tools supported by the providers.
SaaS and PaaS both make it so that the user isnt bothered with managing or controlling the underlying cloud infrastructure, including network, servers, operating systems, storage or even individual application capabilities.
Cloud Infrastructure as a Service: Capability to provision processing, storage, networks and other fundamental computing resources where the consumer is able to deploy and run arbitrary software, which can include operating systems and applications.8Deployment modelsPrivate cloudCommunity cloudPublic cloudHybrid cloudPrivate cloud: This infrastructure is operated solely for an organization. It may be managed by the organization or a third party and may exist on or off premises.
Community cloud: Shared by several organizations and supports a specific community that has shared concerns (mission, security, requirements, policy). Same management style as private cloud.
Public cloud: made available to the general public or a large industry group and is owned by an organization selling cloud services.
Hybrid cloud: composition of two or more clouds (private, community, or public) that remain unique entities but are bound together by standardized or proprietary technology that enables data and application portability (cloud bursting for load-balancing between clouds).9Commonly used cloud services Google Chrome OSDropboxAmazon Web ServicesWindows AzureGoogle Chrome OS is boasting that laptops loaded with Google Chrome OS (made by Acer and Samsung), will have instant web, booting up in about 10 seconds and resuming from sleep instantly. You can have the same experience everywhere because all of your apps, documents, and settings are stored in the cloud. You still keep all your stuff even if you lose your computer. Youre always connected, whether it be through Wi-Fi or 3G plans offered through Verizon.
Dropbox is a free cloud storage system that allows users to save their data on their virtual drive while being able to access those files from any computer anywhere. An extra utility can be downloaded to multiple user desktops to allow the automatic synching with the online storage.
Windows Azure abstracts the management of an OS, network, etc, giving programmers a platform to build on, so that they can concentrate on the details of their program without worrying about all the other stuff. Applications are built, hosted, and scaled through Microsoft datacenters.
Amazon Web Services works similarly to Windows Azure.