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What is Hybrid Cloud? The Ultimate Guide

What is Hybrid Cloud? The Ultimate Guide

A hybrid cloud is a cloud that combines elements of private cloud infrastructure and public cloud infrastructure. Hybrid clouds have been growing in popularity as a way for businesses to have the best of everything the cloud has to offer. With that in mind, here is the ultimate guide to the hybrid cloud.

Understanding hybrid cloud

A cloud is a distributed collection of servers that host software and infrastructure that is accessed over a network, usually the internet. A private cloud is a cloud that is owned and managed by the entity that uses it. A public cloud is a cloud run by a third-party cloud service provider (CSP) that is made available for public use. 

Hybrid clouds blend elements of private and public clouds. From a user perspective, the transition between the private and public environments should be absolutely seamless. From a management perspective, the private and public environments will typically have clearly defined roles in the overall structure.

The private cloud

The private cloud will be used for security, customization, and/or economy. It will typically host the most critical applications and/or sensitive data. It may also be used for applications that require very specific environments. 

For example, it may host legacy applications that were developed to run on very specific architecture. This allows the organization more time to decide how to update these applications.

The private cloud will also be used when there is a clear economic case for preferring it. An obvious example of this is long-term storage. It can often be much more economical to store (or archive) data in a private cloud than in a public one.

The public cloud

The public cloud is used for scalability, flexibility, and convenience. It can also be used as a backup to the private cloud. 

Architecture of hybrid clouds

The key to creating and managing a hybrid cloud is to connect the two environments effectively. The four key tools used to make this happen are networking infrastructure, APIs, virtualization, and containerization.

Networking infrastructure: Hybrid clouds require high-bandwidth, low-latency, secure connections. These require a combination of hardware infrastructure and modern network technologies such as Virtual Private Networks (VPNs), Multiprotocol Label Switching (MPLS), and Software-Defined Networking (SDN).

APIs (Application Programming Interfaces): APIs define how software components should interact with each other. By standardizing communication, APIs facilitate seamless interoperability between applications running in different environments.

Virtualization: Virtualization technologies, such as hypervisors, enable the abstraction of physical resources. This in turn enables the seamless migration of resources between public and private clouds. It therefore plays a huge role in optimum resource allocation.

Containers: Containers encapsulate an application and its dependencies, ensuring consistent behavior across different cloud environments. This means they provide a lightweight and consistent way to package and deploy applications. Their portability and efficiency allow organizations to develop, test, and deploy applications faster and with fewer compatibility issues.

Use cases for hybrid cloud

Hybrid cloud environments offer flexibility, scalability, and a strategic approach to managing various workloads. They have multiple use cases. Here are five of the main ones.

Dynamic or frequently changing workloads: Hybrid clouds provide the ability to scale dynamically using public cloud resources when necessary. This promotes cost-efficiency and seamless performance even during traffic spikes.

Separating critical workloads from less-sensitive workloads: Sensitive data and mission-critical applications can benefit from the security and control offered by private clouds. Less-sensitive workloads can be handled by the cost-effective public cloud infrastructure. This maintains a balance between data protection and cost management.

Big data processing and analytics: The public cloud’s vast resources can be used to analyze large datasets. Sensitive or proprietary data can be kept within a private cloud for compliance and security reasons.

Incremental migration to the cloud: Organizations can adopt a hybrid cloud approach to migrate to the cloud at their own pace. This allows them to transition workloads gradually, minimizing disruption and adapting to the cloud’s benefits over time.

Flexibility for future business needs: As business requirements change, hybrid cloud environments provide the flexibility to adjust resources, scaling workloads up or down across different cloud environments. This agility ensures the infrastructure can align with evolving organizational goals.

Benefits and challenges of adopting hybrid cloud

The three key benefits of adopting the hybrid cloud are as follows.

Efficient use of infrastructure and resources: Organizations can utilize the cost-effective scalability of public clouds while maintaining control over sensitive data in private clouds.

Cost savings and resource optimization: Hybrid cloud strategies minimize capital expenses by enabling on-demand resource provisioning. 

Accelerating digital transformation and innovation: Hybrid cloud facilitates the adoption of new technologies and innovations.

The three key challenges of adopting the hybrid cloud are as follows.

Complexity of managing multiple cloud environments: Coordinating different cloud providers and environments requires solid management skills.

Ensuring consistent performance and user experience: Keeping performance and user experience uniform across a hybrid cloud infrastructure requires careful management and monitoring.

Skill and expertise requirements: Efficiently implementing a hybrid cloud requires skilled professionals capable of managing various cloud technologies and platforms.


Related Resources:

Hybrid Cloud Solutions and Data Center Integration

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