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CLOUD COMPUTING
Presented by,R.Mujeeba behamFinal year,cse.
SEQUENCES:
What is cloud computing
Characteristics Economics Layers
● Deployment models
Cloud Storage
The Inter Cloud
Issues
Future of cloud Computing
SEQUENCES...
What is Cloud Computing
Cloud computing is an umbrella term used to refer to Internet based development and services.
Used in Online tools for email,productivity software, business applications, and data storage
Eliminates costs related to on-site installations of hardware, software, and IT support staff
Available from any location and device with an internet connection
CONTINU...
Who are all in the Cloud?
Online email accounts (Gmail, Yahoo) Social networking sites (Facebook, Twitter) Photo sharing sites (Flickr, Picasa) Search engines (Google, Bing) Productivity software (Google Docs) Personal finance software (Quicken, online banking and bill paying tools)
CHARACTERISTICS: A number of characteristics define cloud data, applications services and infrastructure:
Remotely hosted: Services or data are hosted on remote infrastructure.
Ubiquitous: Services or data are available from anywhere.
Commodified: The result is a traditional utilities, like electricity - you pay for what you would want!
Economics:
Cloud computing users avoid Capital Expenditure (CapEx) on hardware, software, and services when they pay a provider only for what they use.
Shared infrastructure and costs, low management overhead, and immediate access to a broad range of applications.
Layers:
(i) Client :
A cloud client consists of computer hardware and/or computer software that is specifically designed for delivery of cloud services
(ii) Application : Cloud application services or "Software as a Service (SaaS)" deliver software as a service over the Internet.
eliminating the need to install and run the application on the customer's own computers and simplifying maintenance and support.
(iii) Platform :
Cloud platform services or "Platform as a Service (PaaS)" deliver a computing platform and/or solution stack as a service.
It facilitates deployment of applications without the cost and complexity of buying and managing the hardware and software layers.
(iv) Cloud Infrastructure as Service: "Infrastructure as a Service (IaaS)" delivers computer infrastructure, typically a platform virtualization environment as a service
Rather than purchasing servers, software,network equipment, clients instead buy those resources as a fully outsourced service
The service is typically billed on a utility computing basis and amount of resources consumed
(V) Server :
The servers layer consists of computer hardware and/or software products that are specifically designed for the delivery of cloud services
It including multicore processors, cloud specific operating systems and combined offerings
Deployment Models :
Public vs Private cloud :
By integrating multiple cloud services users may be able to ease the transition to public cloud services while avoiding issues such as PCI compliance.
A hybrid cloud environment consisting of multiple internal and/or external providers "will be typical for most enterprises".
Hybrid Cloud :
Cloud storage :
Cloud Storage is a model of networked Computer data storage.
Data is stored on multiple virtual servers, generally hosted by third parties, rather than being hosted on dedicated servers.
The Intercloud :
The Intercloud is an interconnected global "cloud of clouds" and an extension of the Internet "network of networks" on which it is based.
Issues :
(i) Security data storage and transmission encryption, user authentication, and authorization (data access) practices.
worry about the vulnerability of remote data to such criminals as hackers, thieves...etc
(ii)Reliability – To avoid the loss of data using redundant storage techniques, but it is still possible that a service could crash.
(iii) Ownership – In cloud, some people worry that they could lose some or all of their rights or be unable to protect the rights of their customers.
(iv) Data Backup – Cloud providers employ redundant servers and routine data backup processes. some people worry about being able to control their own backups .
Data Portability and Conversion – Porting and converting data is highly dependent on the nature of the cloud provider’s data retrieval format.
Multiplatform Support – An issue for IT departments using managed services is how the cloudbased service integrates across different platforms and operating systems.
Intellectual Property A company invents something new and it uses cloud services as part of the invention. Not secured in cloud.
Future of cloud Computing:
Cloud computing is still in its infancy, and the future is still being defined.Made possible due to high-speed Internet.
No matter the country, anyone can compete in this market and define its the future.
Technology will evolve from services into full-fledged operating systems.
Google, Microsoft, and Apple are three likely contenders in the future of the industry.
Future of cloud Computing...