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Instead of owning and maintaining physical servers, cloud technology has given us the opportunity of leveraging computing resources over the internet with flexibility in payment modes, scalability, adaptability, and easier deployment on a secure worldwide server. Public, Private, and Hybrid Clouds are the different cloud deployment models in cloud computing. Consider industry-recognized cloud certifications to boost career prospects. Research AWS Solutions Architect certification costs based on desired level. Private Cloud is better to use when:
Private Cloud definition: A private cloud deployment model can be defined as a model wherein the IT resources are dedicated to a single organization. It is a single-tenant infrastructure. It is like an internal server of a company, only users within that company can access the resources. They require allocations of space, hardware, and environmental controls. It is like a personal cloud for the organization.
An internal private cloud is present at the organization’s local data center. All the resources are owned by the organization itself. This allows more control over the resources of the organization. The capital expenditure in this model is high. It is difficult to scale and offers higher latencies as servers are deployed on-premises.
An external private cloud is hosted by a third-party cloud provider for the organization. They dedicate resources on behalf of the organization. This gives lesser control to the organization. The capital expenditure in this model is low and expenses are variable. It is easy to scale and offers lower latencies as servers can be deployed in different locations.
A private cloud is suitable to use when:
Private cloud computing follows a single tenancy, only one organization or customer has access to it. This also increases resource availability. Internal Private Cloud will not be connected to the internet as it is on-premises, and it can be connected through internal networks like data centers. Whereas External Private Cloud can establish connectivity over the public internet but over a VPN (Virtual Private Network), Fiber, or Ethernet. When considering a career in Cloud computing, it is important to keep in mind that obtaining a strong foundation in the fundamentals of Cloud Computing is crucial.
A private cloud server is also based on technologies followed by other clouds such as public clouds which allow virtualizing IT resources to quickly scale and improve availability. Private cloud providers allow users to architect data centers using Virtual Machines, Containers, and Software Defined Networks instead of physical servers. They provide on-demand management of all the IT resources such as compute, storage, and network. To achieve this, a private cloud gets support from these technologies:
A private cloud can also leverage DevOps and cloud-native practices to maximize agility.
It is simply a virtual network dedicated to one organization or user in a public cloud. It can be termed a Network-As-A-Service by the public cloud providers. Organizations can create logically isolated data centers and labs within them. Any computer resource deployed will be part of this customized private IP subnet or lab. The underlying infrastructure is maintained by the cloud provider itself. Organizations can access the resources within this subnet over a secured VPN connection. Examples of Virtual Private Cloud are – Amazon VPC, Google Cloud Platform (GCP) VPC, and IBM Cloud VPC.
In a managed private cloud, the hardware and software are owned by the organization. It can be on-premises or off-premises. However, the entire management, operation, and maintenance tasks of the cloud are outsourced to external private cloud providers.
In a hosted private cloud, cloud providers provide isolated servers in their data centers. The cloud provider is responsible for the hardware, software, network, and security of the infrastructure. Labor and maintenance costs to the organization get reduced in this model.
On-premises private cloud allows users to host servers locally in data centers. It provides high security because the boundary of physical and logical accessibility is only within the organization.
The table below states the differences between Public Cloud and Private Cloud based on parameters like cost effectiveness, ease of use, audience along with some examples.
Dependent on the cloud provider
Multitenant, Shared Servers
On-premises, Private Servers
AWS, GCP, Azure, IBM, Oracle
VMware, HPE, Dell, OpenStack
Below is a table of differences between Hybrid Cloud and Private Cloud:
On-premises, Private Servers
VMware, HPE, Dell, OpenStack
Rackspace, VMware, Cisco, IBM
Some of the major private cloud vendors are:
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To conclude, there are a plethora of options and models available if one decides to choose a private cloud for their workload deployments. Organizations need to decide on the correct architecture for their business logic and choose accordingly. Security and privacy are the main advantages of using a private cloud. Most of the cloud providers come with great documentation, which can help one get an overview of the services they offer. Examples of private clouds are – Amazon VPC, HPE, VMware, and IBM. They leverage technologies like Virtualization, Management Software, and Automation to achieve this. A private cloud can also leverage DevOps and cloud-native practices to maximize agility. KnowledgeHut Computing training provides comprehensive training on the fundamentals of cloud computing.
It is easier to provide isolation and control into the infrastructure consisting of computing, storage, and network resources of a particular organization. Since the resources are isolated, it provides greater data security and integrity. It provides scope for customizing software and hardware requirements which is not provided at a high scale in a public cloud.
Private Cloud examples - HPE, OpenStack, Dell, VMware, IBM, AWS VPC.
A private cloud is more secure because all the resources belong to a single organization, it is not shared among others which allows organizations to have maximum control over access and data. A private cloud also allows the customization of security.
It depends on the decided architecture. Small organizations can use the public cloud and then cautiously move to a private cloud for the security of important data, for example, a database, and deploy the rest of the services in a public cloud.
Public Cloud is better to use when:
The organization is short of funds to invest in a private cloud infrastructure.
High and instant autoscaling is required.
Low latency is required, and public clouds provide location-independent services.
Private Cloud is better to use when:
Sensitive data control and security are required.
Customization is required in terms of compute, storage, or networking for the deployment of any business logic.