Comparing public, private and hybrid clouds
Three different models
Nearly everyone uses the cloud, but not everyone uses the same type of cloud. There are in fact three different cloud models, including public, private and hybrid clouds. To help determine which cloud best suits your company’s needs, the following explores how these three models compare and contrast
public cloud?
Public clouds are the most common way of deploying cloud computing. The cloud resources (like servers and storage) are owned and operated by a third-party cloud service provider and delivered over the Internet. Amazon, Google, Microsoft is an example of a public cloud. With a public cloud, all hardware, software and other supporting infrastructure is owned and managed by the cloud provider. In a public cloud, you share the same hardware, storage and network devices with other organisations or cloud “tenants.” You access services and manage your account using a web browser. Public cloud deployments are frequently used to provide web-based email, online office applications, storage and testing and development environments.
One drawback of a public cloud pertains to security. Public clouds often cannot meet many security regulatory compliance requirements since different servers reside in multiple countries with various security regulations. Moreover, network issues can occur during peaks in online traffic. And while a public cloud model is generally cost-effective by offering pay-as-you go pricing, expenses can accrue quickly when moving large amounts of data
Private cloud
A private cloud is one in which a business has sole access to infrastructure resources. Customers can choose to have the private cloud located at an on-site data center or hosted by a third-party service provider.
A benefit of a private cloud model is it provides greater security compared to a public cloud model since a single company is the only designated entity that has access to it. This also makes it easier for organizations to customize their resources to meet specific IT requirements.
Private cloud refer to the cloud solution dedicated for use by a single organization. The data center resources may be located on-premise or operated by a third-party vendor off-site. The computing resources are isolated and delivered via a secure private network, and not shared with other customers. Private cloud is customizable to meet the unique business and security needs of the organization. With greater visibility and control into the infrastructure, organizations can operate compliance-sensitive IT workloads without compromising on the security and performance previously only achieved with dedicated on-premise data centers.
Hybrid cloud
A hybrid cloud model provides multiple options from different service providers. With a hybrid cloud, data and applications move between both a private and public cloud. For example, customers can choose to store data in a private cloud, while running an application in a public cloud.
A benefit of a hybrid cloud approach is it allow users to take advantage of both public and private clouds. It also provides a great deal of flexibility as applications drift across multi-cloud environments. Additionally, a hybrid cloud model is cost-effective since companies can decide to use more expensive cloud resources only as needed.
A difficulty with a hybrid cloud is it can be hard to maintain and secure on account of being more complex. Additionally, integration can be a challenge since a hybrid cloud is a combination of different clouds, data and applications. Major compatibility issues can arise across the infrastructure when developing a hybrid cloud as well.
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