We mainly use RPM-based systems to give our developers virtual machines.

Red Hat Enterprise Linux for SAP with HA and Update Services 9.2
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Offers stability and long-term support
What is our primary use case?
What is most valuable?
The most valuable features of using RHEL for us are the standard way to run Linux and tools like NetworkManager. They make things easier for us.
What needs improvement?
I prefer a product that offers everything in a yearly subscription, like VMware, and I think RHEL should consider offering it as well.
For how long have I used the solution?
I have been using RHEL for 15 years.
What do I think about the scalability of the solution?
The scalability of the solution is good.
How was the initial setup?
We use RHEL deployed in different zones, only on-premise, not in the cloud. Deploying RHEL depends on the end user, but migrations aren't usually a problem due to site forwards. The hardest part is dealing with end-user applications on the machines. We use Ansible for scripting, especially with Oracle. Sometimes, meeting the end of life for RHEL versions is tough, and we have had to buy extended support for RHE because some applications reached the end of life within a year. I appreciate the extended support option, though I prefer not to use it.
What's my experience with pricing, setup cost, and licensing?
RHEL's pricing and licensing are quite expensive. For a big company, paying these fees might be manageable, but as a government organization, spending tax money on such expensive solutions is challenging, even though we do have the funds.
What other advice do I have?
I see benefits in using RHEL because it offers stability and long-term support. Although we use both RHEL and Ubuntu, I have noticed that updates in Ubuntu can change things unexpectedly within a main release, which I don't like. That is why I focus on RHEL for its consistent and reliable updates.
RHEL's built-in security features are very good for risk reduction, business continuity, and maintaining compliance. We apply security guidelines in Linux using RHEL, which provides all the necessary baselines. We can choose and apply what we need directly to our RHEL systems.
I would say that open-source cloud-based operating systems like Debian are stable and have been around for a long time. There is a whole community supporting it, making it a strong alternative to RHEL with fewer licensing costs.
Overall, I would rate RHEL as a nine out of ten.
Which deployment model are you using for this solution?
RHEL Rules
RHEL
Extremely reliable and improves support for container management within our organization
What is our primary use case?
We primarily use RHEL for data analysis servers supporting our scientific researchers, who access the systems remotely.
What is most valuable?
The reliability and long support lifespan of RHEL are crucial for us. It lasts for ten years, meaning we don't need frequent changes. Updates are quick, simple, and reliable, automatically backing out if issues arise, saving us from patching headaches.
What needs improvement?
I'm eager to see how the AI features in RHEL can enhance our capabilities. We hope it will improve tasks we have found challenging in the past, like documentation searches. We are particularly interested in automation and easily finding information.
For how long have I used the solution?
I have been using RHEL for 15 years.
What do I think about the scalability of the solution?
RHEL is scalable. We have scaled our data analysis clusters with it quite well.
How are customer service and support?
I would rate the customer support as a nine out of ten.
How would you rate customer service and support?
Positive
How was the initial setup?
Deploying RHEL for the first time was simple. It was a long time ago, and we had documentation from previous admins which made it straightforward. We did the deployment on our own.
What was our ROI?
We have seen ROI with RHEL. Our biggest investment is in professional development through Red Hat Summit, online training, and a Red Hat Learning subscription, which we have used for courses.
What's my experience with pricing, setup cost, and licensing?
Our experience with RHEL pricing and setup costs has been good. We will be purchasing an extended license for another year.
Which other solutions did I evaluate?
We have used RHEL since I joined my company about 15 years ago. We have looked at other options like Fedora and Ubuntu for more up-to-date libraries, but we keep coming back to RHEL for its reliability and long-term support.
What other advice do I have?
Using RHEL for containers has simplified our processes. While we, as system managers, aren't heavily involved in development, we provide RHEL containers for our developers. Overall, it has improved support for container management within our organization.
We rely on Linux for our web and file servers to ensure file integrity and service verification. Additionally, we use the host firewall regularly on all our hosts for enhanced security.
We started agile development and containers help us by making it easier for developers to teardown and recreate environments. This allows for more frequent updates, improving our workflow.
Our Red Hat portfolio reduced our cost of ownership by using RHEL Workstation instead of full server licenses where possible, saving money. We use full RHEL only on our enterprise production servers.
I would advise a colleague to check out Red Hat for its long-term support and reliability compared to other open-source Linux-based operating systems.
Overall, I would rate RHEL as a nine out of ten.