This data migrate to the router and then transfer to the internet. The Internet transfers the data to the service provider. In the service provider, there are so many categories involved to secure the data from the others those belong to our business, customer service, extra. These steps having individual locks for security purpose. The data is not going to release to the public by the service provider under any circumstances.
There are so many advantages by using the private cloud rather than public cloud. They are.
1. Flexibility - We can access the data as per our technology and requirements.
2. Control – The control of the project is good for data are limited.
3. Security – We are using the individual locks to all components, no one can operate it.
4. Reduced risk –Level of risk is reduced it using by a single organization.
Technology Requirements .
Cost.
According to computer economist's research, IBM spent 4.1 percent in the 2006. This value enhanced to 5 percent in 2007. However, this number dropped to 4 percent in 2008 because of the drop in the IT growth. Amazon Web services EC2 pricing is divided into On-Demand instances and reserved instances. Eight extra large high On-Demand instances costs $4.600 per hour for LINUX/UNIX usage and it costs $4.931 per hour for Windows usage. The Reserved instances are divided into light, medium and heavy utilization reserved instances. These costs on 1 year term and 3 year term basis. By observing the above amounts, the cost of private cloud computing varies for different companies per hour or on a yearly basis.
Size.
The size of private cloud is not constant since we can install an infinite number of applications in our private cloud and we can remove those softwares as needed. For instance, we can use applications such as monitoring, content, collaboration, communication and finance in a private cloud so that size will be large. In Amazon EC2 Architecture, Amazon is using corporate and public internet.
