Currently, there are three categories of “clouds“:

1. Public Cloud
2. Private Cloud
3. Hybrid Cloud

Public Cloud Computing – is the IT infrastructure that is used by many companies and services at the same time. Data users of the clouds are not able to manage and maintain this cloud, the entire responsibility for these matters rests with the owner of the cloud. Subscriber services can be offered by any company and individual user. They offer an easy and affordable way to deploy Web sites and business systems, with high scalability, which in other solutions would be available.

Private Cloud Computing – A secure IT infrastructure is controlled and operated for the benefit of a single organization. The organization can manage  its own private cloud or outsource this task from an external contractor. Infrastructure can be placed either on the premises of the customer, or in a data center. Ideal private cloud is the cloud that is deployed in the organization premises, served and controlled by its employees.

Hybrid cloud Computing – Is the IT infrastructure using the best qualities of public and private clouds, with the task. Often this type of cloud is used when an organization has seasonal periods of activity, in other words, once the internal IT infrastructure can not cope with current challenges, some facilities are  transferred to a public cloud (e.g. large amounts of statistical information, which is in its raw form or something that does not represent value for the enterprise), as well as to provide user access to enterprise resources (for private cloud) via a public cloud.

Companies and people who are embracing the cloud computing are doing some things right and wrong as well. Here are the three most common mistakes that could be avoided.

Do Not Consider The Public Cloud Computing

You love your servers and cloud computing so you are going directly to private cloud, without even considering alternatives like public cloud. Although the private cloud is a great solution in many cases but it can be put aside to leverage solutions on demand and capacity at low cost.

Concerns About Security And Governance

Although it is necessary to consider both security and governance in a systematic way, many companies look for themes only after adopting the solution of cloud computing , whether private, public or hybrid. The problem is that you can not just put a layer of security and governance on the cloud, it must be considered from a level of architecture planning.

Lack Of Business Continuity Strategy

Although many cloud solutions offer good elasticity and standby sites, it is your responsibility to plan for continuity of service on systems in the cloud or the traditional model. In addition, you should think about what could happen if your ISP disconnects, or shuts down.

There were some major outages in 2011 and we should see more in 2012. What would happen if this interruption affects you for days or weeks rather than hours?

You need a plan to address this issue, including storing current versions of your data in backup systems that can keep the business running.

In addition to the interruption, you must consider what would you do if your cloud provider closes without notice. And what would you do if the service was blocked due to billing errors or if the provider finds that you use the cloud to violate any rules?

These are obvious questions, if you ask me. Clearly, you can avoid these errors.

First of all, you must first go for the Virtualization – need to virtualize some applications and the company gets the benefits. Usually at this stage, about 30% of virtualized applications.To go further there is the idea that you need to virtualize not only the usual basic applications, but also critical applications – e-mail servers, and databases. Virtualization critical applications – is the second step of the model of IT as a service.

The transition to private cloud hosting

The third step is a transition to private cloud.The first two steps – this is the optimization of IT services. We can create a pool of resources, implement load balancing between resources and a process of automation.

In the transition to private cloud, you get other opportunities.You can create self-service portal. For example, you can choose a specific application and pay for on-demand resource.

Businesses can claim a certain level of IT as an agreement on the service provided (SLA) and this can be done with the clouds.

What is the valuable for the company is a constant IT solutions, services based on SLA, the payment on demand, moving applications within the clouds. VMWARE guarantees the full compatibility between your private cloud and external clouds.

The result is a new IT landscape, we have a large number of devices, the client may need the access from anywhere in the world and this access must be secure. Will be required to support a large number of applications.

Applications and users can work within a cloud – within its own data center. The task of IT is to combine them all together and you have complete control over all of this.