DEFINATION AND BASIC CONCEPTS OF CLOUD COMPUTING

          Hello friends after successful post on networking osWorld is now goin to post on cloud computing.let me know you that future of cloud computing is very bright because more and more companies are going on concept of cloud computing but engineers of cloud computing are not much so friends future of cloud computing is very bright as per my openion.in this article i am going to teach you basic concepts of cloud computing like what is cloud computing?,basic clouds of cloud computing,defination of cloud computing.
           cloud computing is general term that hosted services provided on internet is called the cloud computing.a cloud can be a public or private.a public cloud is sells the services to the any one on internet currently amazon has the biggest public cloud.private cloud is sells the services to the limited number of people on internet.it will secure.
           there are more two clouds are available except public cloud and private cloud which are hybrid cloud and community cloud.this cloud is combination of public cloud and private cloud so it is known as hybrid cloud another is community cloud which is used to share a cloud of same community. for example suppose a goverment company is share a cloud to all goverment company but non goverment company can not share this cloud that's why this type of cloud are known as community cloud.
            so friends in this article i tried my best to teach you basic concepts of cloud computing.i hope you people like this article.if you like then share it to your friends on social networking sites.

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DIFFERENT TYPES OF CLOUD USING IN CLOUD COMPUTING

                  from now on day by day craze of cloud computing is increasinng but before use cloud computing we must have to know what is cloud computing?what is different types of cloud using in cloud computing?how cloud computing affects in future?etc  etc....
                         here i explain you the basic types of cloud used in cloud computing

• Public Cloud: Computing infrastructure is hosted at the vendor’s premises. The customer has no visibility over the location of the cloud computing infrastructure. The computing infrastructure is shared between organizations.
• Private Cloud: Computing architecture is dedicated to the customer and is not shared with other organisations. They are expensive and are considered more secure than Public Clouds. Private clouds may be externally hosted ones as well as in premise hosted clouds.
  

  diagram is available under a Creative Commons Attribution ShareAlike 3.0 license in PNG and SVG formats from the Wikimedia Commons (Cloud computing types.svg
• Hybrid Cloud: Organisations host some critical, secure applications in private clouds. The not so critical applications are hosted in the public cloud. The combination is known as Hybrid Cloud. Cloud bursting is the term used to define a system where the organisation uses its own infrastructure for normal usage, but cloud is used for peak loads.
• Community Cloud: The cloud infrastructure is shared between the organizations of the same community. For example, all the government agencies in a city can share the same cloud but not the non government agencies.

RELATED ARTICALS:
1.HOW CLOUD COMPUTING REALY WORKS?
2.FUTURE OF CLOUD COMPUTING.

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future of cloud computing with it careers

Cloud computing is no longer just an industry fad. It’s here to stay, and it’s not going anywhere for a long time.
But if you work in IT, what will this mean for your career? How will your job change? How should you prepare?
That’s a question that I’d recently asked to some of the leading minds in both the HR and the technology fields. And what they had to say might make you reevaluate your career strategy going forward.

The cloud is a step towards efficiency and overhead reduction. IT jobs will be migrated more than eliminated. Instead of maintenance teams at individual organizations, there will be individuals at individual organizations interfacing with maintenance teams on the other end, as necessary. The cloud providers will still require an IT staff.
Additionally, with the cloud still emerging, IT workers have a relatively unsaturated market for entrepreneurial ventures in cloud-interfacing software and IT efficiency applications.

Tilak Joshi from Columbus Technologies and Services

How should IT workers prepare?
Ironically, I think IT workers should begin to look to work for themselves as consultants and contractors. With the coming wave of cloud computing, there will be less of a need to have in-house IT departments and that could result in leaner IT budgets. Start preparing now to go into business for yourself so that you can supply expertise to more than just one company at a time.
How will the role of IT be different?
Less face to face interaction. With things being remote, there is a strong chance that higher level issues can be outsourced to contractors with cloud/VPN access and lower lever (T1, T2) support functions can be handled by in-house or third party desk side support techs. Either way, I don’t think there will be room for too many IT professionals in one spot. They will begin to look like the old Maytag Man, bored with nothing to do.

Joey V. Price from Jumpstart:HR

When utilizing the cloud, you eliminate that demarcation point, and still manage everything from the premise, even though it resides in the cloud, all with a user login and password. This eliminates the finger pointing and allows the IT staff to have more control of the company’s resources. Instead of working late during the week or on weekends when everyone else is already at home or enjoying their weekend, you won’t have to sit on the phone with different vendors, trying to work out issues. With the cloud, you work with one service provider who can give you the flexibility that you should already have.
IT professionals should start preparing themselves to convert their enterprise IT infrastructures into private and/or hybrid clouds, to take on the role of provisioning cloud services for end users and business partners.
A public cloud serves multiple companies while a private cloud serves a single company. However, generally they are never one or the other. Usually, it’s a hybrid cloud, a mix of private and public clouds talking to one another. Hybrid clouds allow IT professionals to be more effective in their roles and better manage vendors as opposed to fire fighting, but no matter which model comes into play, cloud computing and its impact will vary depending on your job role and your company’s business.

Louis Hayner from WVT Communications Group

As businesses move their supporting infrastructure to the cloud, there may be little or no need for onsite support of physical systems, however, the need to manage the applications will still be necessary depending on what type and quantity of cloud services an organization buys. Temporarily, while some businesses are still shifting to the cloud, IT personnel will be required to develop migration strategies and to ensure that applications are compatible and properly ported to cloud resources.
Higher adoption of cloud for Platforms, Software, and Infrastructure is going to introduce new IT governance paradigms. These paradigms may exist in a non-cloud environment at subtle levels but will assuredly become more apparent the more an organization adopts the cloud. The reasons for this are actually simple and they center on having the ability to identify cloud services that meet business requirements in a manner that is flexible, efficient, and secure. Equally if not more importantly, the ability to evaluate a cloud offering against a set of business and technical objectives and be qualified enough to determine if the offering will preserve the efficiencies gained by investment in the cloud (i.e. will not introduce additional management or operational burdens, degrade the user experience, or pin the business into a corner or other sense of dependence).
The evaluation and selection of cloud providers and services should not be a function of the Finance or Procurement departments, but rather a collaboration between those parties and Architect-level technologists who possess the ability to visualize what the business needs in a cloud provider and the levels of service and performance required by the user population.
The best people for these roles are the top internal IT people; those who have spent considerable time serving the user community and are in touch with what the business needs and expects out of IT. These people are going to come from nearly all levels of IT and organizations that are looking to make significant investments in the cloud should begin identifying and grooming those within the IT department that can see the long term vision and where they fit in beyond the internal corporate data center.

Kris Domich from Dimension Data

The cloud has arrived and businesses must begin strategizing on how they will train IT professionals to manage and maintain such a diverse virtual and cloud-based environment. In order to leverage today’s technologies, businesses will have to begin by hiring or re-training the right kind of people who are open to connecting external and internal services to drive business solutions with sensible governance. Yesterday’s need for system administrators whose only role is lower-level functions is gone and we now need IT staff who better understand how IT aligns with business goals. What we now need are IT teams who are able to find out the best available solutions for each individual company. IT is currently being challenged to prove its worth. Job descriptions will change and we simply must think about tomorrow, today.

Harry Labana from AppSense

Cloud computing is changing the expectations on IT, but IT is struggling to change itself to meet those expectations. Tomorrow’s enterprise needs to be responsive and transparent with the services IT can deliver.  Give the internal teams the same experience they can find externally, show the cost of a resource or service, allow it to be delivered on-demand, and make it simple to access and consume.  This, of course, is easier said than done.  But in the absence of this IT model, more applications will continue to be built and consumed via off premise clouds.  I’ve heard that adding automation and centralizing functions is concerning to many IT professionals, as it may impact their job.  Of course in these times, that’s a concern.  But if there is less to manage because more is outsourced, the end result of fewer IT people on the inside might still hold true.
To move IT forward, show your personal value and drive efficiency, consider how to automate or centralize your function, get out of the low-value,  tedious admin role and start to align as a strategic advisor to the businesses that consume application resources.  Help them get the experience they want, with the security and pricing the business needs, on or off premise. That makes you more valuable, helps the business unit be successful, and drives a better bottom-line, everyone wins.

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IMPLEMENT CLOUD COMPUTING STRATERGY

                          after successful post on airtel gprs trick  osWorld is no going to post on cloud computing
The explosion of digital information—from e-mails and files to instant messages and electronic records—has companies of all sizes and industries grappling with not only how to best manage and secure their data, but also how to do it cost-effectively. It's being predicted that digital content will grow five-fold in the next two years, all while IT budgets are expected to grow a mere 2.3 percent in 2010.

Many IT departments are asking, "How can we ensure that we have the right tools in place to guarantee the security of our data and meet today's regulatory demands, all while keeping costs in check?"

Cloud storage provides enticing advantages to companies that need to drive cost, risk and complexity out of the information management equation. Cloud storage is on-demand, flexible storage that can scale up and down as needed. It requires no capital outlay and offers a pay-as-you-go model. But how can you determine which cloud-based solution is best for your business? Do you need a private or public cloud? Primary or secondary storage?

While increased competition in the cloud storage space is pushing costs lower, it is also forcing IT decision makers to evaluate more solutions and providers. Knowing which data to keep, what to delete, and what to retain to meet the necessary compliance and legal mandates for your business will help make your decision to implement cloud storage easier.

Developing a cloud storage strategy may seem complicated at first, but doing so can reduce costs by utilizing a shared infrastructure and shifting capital expenses to operating expenses.  Before considering cloud-based services, organizations need to assess both the associated risks and benefits involved. They also need to work with service providers to understand key areas from compliance and data location to availability, recovery and viability. Businesses should consider the following seven elements before implementing a cloud storage strategy:

1. For starters, rethink your storage strategy

Take time to evaluate your organization's data and policies. Establish metrics and reports, understand your organization's trends and think about what can be purged. Assess moving away from high-priced Tier 1 storage and consider when it would make sense to utilize secondary storage. Ensure that your storage polices are in line with your legal and compliance policies, as many companies often keep too much. Finally, focus on the bottom line. Rethinking your storage strategy can help you reduce both the risks and costs of managing your information, so it's a good time to start asking these questions.

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how cloud computing realy works?

         

        hey friends ...after successful post on android logo osWorld is going to post on cloud computing
if you people like then share to other people and give likes....

               Let's say you're an executive at a large corporation. Your particular responsibilities include making sure that all of your employees have the right hardware and software they need to do their jobs. Buying computers for everyone isn't enough -- you also have to purchase software or software licenses to give employees the tools they require. Whenever you have a new hire, you have to buy more software or make sure your current software license allows another user. It's so stressful that you find it difficult to go to sleep on your huge pile of money every night.
Soon, there may be an alternative for executives like you. Instead of installing a suite of software for each computer, you'd only have to load one application. That application would allow workers to log into a Web-based service which hosts all the programs the user would need for his or her job. Remote machines owned by another company would run everything from e-mail to word processing to complex data analysis programs. It's called cloud computing, and it could change the entire computer industry.
In a cloud computing system, there's a significant workload shift. Local computers no longer have to do all the heavy lifting when it comes to running applications. The network of computers that make up the cloud handles them instead. Hardware and software demands on the user's side decrease. The only thing the user's computer needs to be able to run is the cloud computing system's interface software, which can be as simple as a Web browser, and the cloud's network takes care of the rest.
There's a good chance you've already used some form of cloud computing. If you have an e-mail account with a Web-based e-mail service like Hotmail, Yahoo! Mail or Gmail, then you've had some experience with cloud computing. Instead of running an e-mail program on your computer, you log in to a Web e-mail account remotely. The software and storage for your account doesn't exist on your computer -- it's on the service's computer cloud.
What makes up a cloud computing system? Find out in the next section.

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implement cloud computing

Cloud computing is seemingly everywhere these days. Since rising to prominence during the past several years, the technology has grown from a little-known novelty to an over-hyped revolution in enterprise IT. Now it stands on the doorstep of mainstream adoption.

                        Companies everywhere are flocking to migrate services to the cloud to leverage its cost-effectiveness, flexibility and ability to increase the efficiency of enterprise IT. However, making such a move is not always easy.

Adopting cloud computing services is a process that you  must be carefully plan and execut it in order for an organization to experience the good possible return on investment and use of the technology. Below are a few steps that all companies must take along the way.
1. Recognize the need for integration solutions
While the technology may be different, the process for implementing cloud-based applications into the rest of the business remains unchanged. The need for business integration solutions may actually be more important now than ever.
Through A2A integration processes, companies can ensure that cloud-based apps are effectively deployed alongside on-premise, legacy systems, as well as other hosted services. Doing so will avoid the dreaded silo, where an application is left out on its own, unable to communicate or transfer data.
2. Identify areas to migrate
Not all areas of a business should be migrated to a cloud computing service. Whether for compliance reasons or data security concerns – still the largest roadblock to many company's adoption of the technology – some systems are best left on premise. That's true, at least, for the time being.
So any move to the cloud will begin by identifying which areas of the organization can be migrated. According to recent research conducted by Techaisle, many companies have chosen to migrate email, data storage and industry-specific applications to a cloud-based model.
Individual companies have specific needs and expectations for the cloud, and it's up to them to decide what will work best.
3. Focus on data security
The security of cloud computing solutions continues to worry chief information officers the world over. However, vendors and proponents of the cloud – including former federal CIO Vivek Kundra – have said the notion of the cloud being an insecure technology is overblown.
In fact, other experts have conceded that the level of protection provided by cloud vendors and their products far surpasses what a company is generally capable of providing for itself.

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disadvantages of cloud computing

While cloud computing and storage is a great innovation in the field of computing, However, there are certain things that you need to be cautious about too. Some may say that there are no down sides to cloud computing, but users should not depend too heavily on these services. Although you may find all you need with a particular service, you have to consider the security and portability it offers and also make contingencies should the service be terminated abruptly.

Moreover, an online service is more prone to threats than your PC. Having said that, however, most would agree that with cloud computing, the good outweighs the bad.
The main disadvantages are Security and Privacy, Dependency (loss of control), Cost ,Decreased flexibility ,Knowledge  And Integration.

1.Security & Privacy

The biggest concerns about cloud computing are security and privacy. Users might not be comfortable handing over their data to a third party. This is an even greater concern when it comes to companies that wish to keep their sensitive information on cloud servers. While most service vendors would ensure that their servers are kept free from viral infection and malware, it Is still a concern considering the fact that a number of users from around the world are accessing the server. Privacy is another issue with cloud servers. Ensuring that a client’s data is not accessed by any unauthorized users is of great importance for any cloud service. To make their servers more secure, cloud service vendors have developed password protected accounts, security servers through which all data being transferred must pass and data encryption techniques. After all, the success of a cloud service depends on its reputation, and any sign of a security breach would result in a loss of clients and business.

2.Dependency (loss of control):

• Quality problems with CSP(Cloud Service Providers).No influence on maintenance levels and fix frequency when using cloud services from a CSP.
• No or little insight in CSP contingency procedures. Especially backup, restore and disaster recovery.
• No easy migration to an other CSP.
• Measurement of resource usage and end user activities lies in the hands of the CSP
• Tied to the financial health of another Company.

3.Cost

Higher costs. While in the long run, cloud hosting is a lot cheaper than traditional technologies, the fact that it’s currently new and has to be researched and improved actually makes it more expensive. Data centers have to buy or develop the software that’ll run the cloud, rewire the machines and fix unforeseen problems (which are always there). This makes their initial cloud offers more expensive. Like in all other industries, the first customers pay a higher price and have to deal with more issues than those who switch later (although it would be very hard to create and improve new technologies without these initial adopters).

4.Decreased flexibility

This is only a temporary problem (as the others on this list), but current technologies are still in the testing stages, so they don’t really offer the flexibility they promise. Of course, that’ll change in the future, but some of the current users might have to deal with the facts that their cloud server is difficult or impossible to upgrade without losing some data, for example.

5.Knowledge  And Integration.

Knowledge:
More and deeper knowledge is required for implementing and managing SLA contracts with CSP’s ,Since all knowledge about the working of the cloud (e.g. hardware, software, virtualization, deployment) is concentrated at the CSP, it is hard to get grip on the CSP.
Integration:
Integration with equipment hosted in other data centers is difficult to achieve. Peripherals integration. (Bulk)Printers and local security IT equipment (e.g. access systems) is difficult to integrate. But also (personal) USB devices or smart phones or groupware and email systems are difficult to integrate.

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characteristics of cloud computing..

We can state that Cloud Computing allows business to increase IT capacity (or add capabilities) on the fly and in real time (Internet-enabled), without investing in new infrastructure, training new personnel or licensing new software, and as a pay-per-use service.
However, the above definition is not complete. Here is the NIST (National Institute of Standards and Technology) simplified version of Cloud Computing:

The five characteristics:

• On-demand self-service: individuals can set themselves up without needing anyone’s help;

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what is cloud computing?

         Cloud computing is a technology that uses the internet and central remote servers to maintain data and applications. Cloud computing allows consumers and businesses to use applications without installation and access their personal files at any computer with internet access. This technology allows for much more efficient computing by centralizing storage, memory, processing and bandwidth.

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