Cloud Models
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Section Overview: Define Cloud Models
Overview
In this lesson, you will learn about the different cloud deployment models: private, public, hybrid, and multi-cloud. Each model has its unique characteristics and advantages. Understanding these models is crucial for selecting the right cloud strategy for your organization.
Define Cloud Models
Private Cloud
A private cloud is a cloud computing environment used exclusively by one organization. It can be hosted on-premises or in a dedicated offsite datacenter, potentially managed by a third party. The primary advantage of a private cloud is greater control over the infrastructure, which allows for customized security and compliance measures. However, this model comes with higher costs and lacks some of the scalability benefits of a public cloud.
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Public Cloud
A public cloud is managed by a third-party cloud provider and resources are shared among multiple organizations. Public clouds offer significant advantages in terms of scalability, cost-efficiency, and ease of access. Organizations only pay for the resources they use, and there are no capital expenditures for scaling up.
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Hybrid Cloud
A hybrid cloud combines private and public cloud environments, allowing data and applications to be shared between them. This model provides flexibility and scalability, enabling organizations to handle temporary surges in demand by utilizing public cloud resources. It also allows organizations to choose which workloads to run in the public cloud and which to keep private.
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Comparative Aspects
| Public Cloud | Private Cloud | Hybrid Cloud |
|---|---|---|
| No capital expenditures to scale up | Complete control over resources and security | Most flexibility |
| Quick provisioning and deprovisioning of applications | Data is not collocated with other organizations' data | Determine where to run applications |
| Pay only for what you use | Hardware must be purchased for startup and maintenance | Control over security, compliance, and legal requirements |
| Limited control over resources and security | Responsible for hardware maintenance and updates |
Multi-Cloud
In a multi-cloud scenario, an organization uses multiple public cloud providers. This approach allows leveraging different features from various providers or transitioning between providers. Managing resources and security across multiple clouds can be complex but offers redundancy and flexibility.
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Azure Arc
Azure Arc is a set of technologies designed to manage complex cloud environments. Whether using a public cloud, private cloud, hybrid cloud, or multi-cloud setup, Azure Arc helps centralize management, ensuring consistent operations and governance.
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Azure VMware Solution
For organizations already using VMware in a private cloud environment, Azure VMware Solution offers a seamless way to extend or migrate workloads to the Azure public or hybrid cloud. This solution integrates VMware environments with Azure, allowing for enhanced scalability and flexibility.
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