1.3. Frequent concerns when migrating to a public cloud
Moving your RHEL workloads from a local environment to a public cloud platform might raise concerns about the changes involved. The following are the most commonly asked questions:
- Will my RHEL work differently as a cloud instance than as a local virtual machine?
In most respects, RHEL instances on a public cloud platform work the same as RHEL virtual machines on a local host, such as an on-premise server. Notable exceptions include:
- Instead of private orchestration interfaces, public cloud instances use provider-specific console interfaces for managing your cloud resources.
- Certain features, such as nested virtualization, might not work correctly. If a specific feature is critical for your deployment, check the feature’s compatibility in advance with your chosen public cloud provider.
- Will my data stay safe in a public cloud as opposed to a local server?
The data in your RHEL cloud instances remains in your ownership. Your public cloud provider does not have access to it. Major cloud providers support data encryption in transit. This improves data security when migrating your virtual machines to the public cloud. Security of RHEL public cloud instances can be summarized as follows:
- Your public cloud provider is responsible for the security of the cloud hypervisor
- Red Hat provides the security features of the RHEL guest operating systems in your instances
- You manage the specific security settings and practices in your cloud infrastructure
- What effect does my geographic region have on the functionality of RHEL public cloud instances?
- You can use RHEL instances on a public cloud platform regardless of your geographical location. Therefore, you can run your instances in the same region as your on-premise server. However, hosting your instances in a physically distant region might lead to high latency and reduced performance. In addition, depending on the public cloud provider, certain regions might offer additional features or be more cost-efficient. Before creating your RHEL instances, review the properties of the hosting regions available for your chosen cloud provider.
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