If our organization has decided to make the transition into the cloud, then we need to determine the infrastructure most suitable for hosting our business apps and data. This is an important business decision that must be made after some careful consideration. There are three different cloud infrastructures available to us:
- Private cloud
- Public cloud
- Hybrid cloud, which is a mixture of the two clouds
Understanding the Difference between Private and Public Cloud Computing
Private cloud computing involves the use of private infrastructure for housing and distributing data and applications. A public cloud infrastructure houses and distributes data in an infrastructure shared with other business entities.
A public cloud makes its applications and data managing features available publicly to everyone. A private cloud limits the cloud resources to a particular organization. Applications and data are hosted on servers owned by the company. In some cases, companies set up private clouds with third party providers that offer dedicated resources to meet the company’s needs.
Before determining the type of cloud to use, it is appropriate for companies to determine how critical their data is. The business’ data protection guidelines must also be considered when making this decision. Some companies have sensitive data that cannot be hosted on public servers. In such cases, a private cloud makes more sense. Generally, organizations in healthcare and financial services opt for private cloud service to keep their data secure and confidential.
As discussed earlier, hybrid cloud refers to a cloud computing environment that employs a mix of private and public cloud resources to incorporate different patterns of data and application usage within the organization. A hybrid model lends greater flexibility to companies, offering them more data deployment options than the other two alternatives.
Benefits of Private Cloud Computing
Security of Data and Applications
Data security is one key advantage of a private cloud infrastructure. No other organization gets access to the data hosted in private cloud.
In some cases, the servers are housed within the organization and are managed by an internal team of system administrators and other IT staff. Several companies entrust their data storage needs to reliable third party service providers that offer secure private cloud computing. The organization accesses the data remotely via secure network links.
A number of private cloud service providers provide reliable and secure private cloud storage solutions to businesses. Hosting data in a private cloud can raise concerns about the physical security of the servers in which the company data is stored. Private cloud service providers are doing everything in their capacity to ensure the security of data hosted on their servers.
Private cloud servers generally offer a more reliable and predictable service to the users. The network is more resistant to failures and faults than its alternatives.
Tradeoff between Cost and Flexibility
Private clouds require expensive infrastructure. It isn’t affordable for every business to implement a private cloud infrastructure. At the same time, organizations enjoy greater flexibility in data usage and management. Any changes can directly be implemented without involving any intermediary, such as the cloud service provider.
Let’s not forget that a cloud service usually involves a service contract fee that must be paid monthly or annually. Additionally, the service provider may not even offer the service level desired by the business. In private cloud infrastructure, we get the added comfort and flexibility of handling server changes in a more streamlined manner.
A private cloud allows businesses to be organized into effective cost centers. It offers greater opportunities of generating income that can later be funneled back into the infrastructure. It gets to charge individual departments depending on their usage of the resources.
Ways of Implementing a Private Model
There are several different ways of implementing a private cloud model into an existing or new IT infrastructure. Here are three methods of private cloud implementation:
Infrastructure as a Service (IaaS)
It is the most widely adopted model of private cloud management. It involves naturally developing the virtualization process that our business undergoes.
Software as a Service (Saas)
SaaS is another model of implementing private cloud infrastructure. Companies are required to purchase a license for a network that is connected through virtual machine management software. In this model, data can also be shared across diverse resources. This lends flexibility to the private cloud to handle even greater workload. In times of low data usage, any servers that are not required may be turned off to save company resources.
Self-Regulation and Return System
There are moments of dips and peaks during data usage of all businesses. This requires private models to manage their storage capabilities according to the previous trends of data usage for the given periods. A self-regulation and return system addresses these highs and lows, allowing us to efficiently utilize our resources by balancing supply and demand.