Comparison between Public Cloud, Private Cloud, and Hybrid Cloud
Public cloud computing in risk management represents an essential change in the leading model of provisioning information technology, altering the responsibility distribution for information safety along with it. Instead of maintaining systems and data on servers and networks located on companies, organizations and premises, request the public cloud service providers that manage and host information technology resources in huge data centers and deliver applications and data to tablets, Smartphones as well as PCs whenever the need arise. This model enhances the information safety of most end users.
A private cloud is an information infrastructure that keeps and manages computer programs and data for a single business. The computing model provides better flexibility and security control as well as accommodates more modification as compared to the public cloud. The risks related to the private cloud are similar to those faced by most companies, therefore having the right co-worker, the risk can be alleviated.
A hybrid cloud is whereby part of the cloud is shared, for instance, you can store and manage data and applications in a hybrid cloud, but share the public network with other organizations. In this case, a hybrid cloud is better than other cloud models because it offers private network as well as dedicated cloud communications. This increases control and flexibility along with reliable security management while decreasing costs some benefits of a hybrid cloud (Eisenberg 46).
In the Public cloud, the internet is provided to make storage and backup services available. The model provides an on-demand solution whereby the user chooses to store data in the cloud, hence resources of an off-site third-party provider are used in this model. Normally, the user is able to access reliability and scalability already installed by the cloud provider without the need to build anything in-house.
In private cloud computing, the backup services are possessed and controlled by the company instead of the cloud provider. In this case, the company has full control over the backup resources involved. It is normally suited for businesses that have restrictions and do not allow backup services to be on public offering. The internal information technology department installs, tests, and manages the backup data center.
In a hybrid cloud, a company may choose to go on using their available data protected on their own network. Therefore, this model allows companies to take full advantage of other models’ ease of access and backup management. It offers a way to address some of the constraints relating to the public cloud model and still gain several benefits of public cloud in backup management.
In the public cloud model, the information technology managers have less power over things such as storage performance and hardware decisions, and this makes it difficult to offer maximum security to the organization’s data and information. An organization’s virtual servers are situated on the network systems of the service provider or in another provider posing some risks to its data and applications. Additionally, this model’s network security provides cheaper security management practices because the cost is shared among many companies as compared to private and hybrid models.
In the private cloud model, the network is intended to offer strong protection dedicated towards one company to safeguard and manage data accessibility, network, and hardware systems found in big data centers. However, as compared to the other computing models, the private cloud is unable to meet the industry-specific compliance regulations. It is normally said to experience high-security risks that lead numerous companies to stop using the public cloud models in various instances.
The hybrid cloud model is controlled in a similar way as a private cloud model with businesses retaining significant security on the infrastructure. In this model, the user has to keep a record of multiple different security platforms and makes sure that every aspect of the business communicates with each other. In this model, security management is cost-effective because safety is offered only to the particular organization owning the cloud.
The public cloud computing model offers little or no privacy for the user’s data and information. Once the users’ data enter this model, it is capable of circulating through thousands of systems all over the world. This is actually frightening for those users that run applications, which require high private data like corporate intelligence or financial information.
Private cloud computing was mainly created to offer maximum privacy to the users’ information and data. It is a computing infrastructure privately owned by a company; hence, it is completely internal offering more total privacy of the user’s data and applications than in a public cloud model where information is open to everyone.
The hybrid cloud offers different needs concerning computational resources in terms of sensitivity and non-sensitivity. In this case, database servers are used to store private and sensitive information, which cannot be accessed by unauthorized users, whereas information that does not require privacy is kept where everyone will be able to access it. Therefore, this computing model solves privacy issues of the public cloud and allows a business to take advantage of everything that the public cloud model has to offer in terms of general computing resources that need no privacy.
The public cloud provides users with recovery management resources without the huge expense of having to own or operate them for themselves. Since, the recovery management tool is perceived as too costly, complex, and unreliable, therefore companies pay per use basis or contract by subscription in this computing model. In this case, recovery management is cost-effective as the off-site recovery infrastructure is communal among many companies. However, the recovery process in this model is time-consuming and not guaranteed to hundred percent recoveries because the cloud providers usually lack software and hardware configurations identical to what a particular company is using on its main site.
In the private cloud model, the infrastructure is normally dedicated to a single company; therefore the recovery management takes less time to recover as compared to recovery in the public model because the configuration of the disaster recovery tools is already done and the information technology infrastructure is duplicated on the recovery management site and is always available in the event of recovery. On the other hand, the process of recovery is expensive compared to the public cloud because the software and hardware involved, stay idle for most of the time when is not used for disaster recovery (Foran 34).
In the hybrid cloud model, it provides a number of different significance when it comes to recovery management planning. It makes disaster recovery less expensive and considerably improves the agility as well as the flexibility of recovery management. This is because when a disaster has been declared, the application software, operating system, and hardware at the site is already configured to match the information technology site, hence no time is wasted. In addition, less time is taken during data restoration after recovery is done (Knudson 23).
Eisenberg Mark. Public, private and hybrid computing clouds. 2012. Web. 4 March, 2014.
Foran Joseph. Managing cloud based disaster recover. 2011. Web. 4 March, 2014.
Knudson Julie. Hybrid cloud disaster recovery best practic