Red Hat Enterprise Linux (RHEL) Reviews

We have a multitude of use cases for Red Hat Enterprise Linux within our organization. We have machines running this operating system, and in our landscape, we also have combined database services.

We are currently using it on-premises but have a roadmap towards a hybrid cloud solution. Because of the way our business operates, it is something that we utilize only on-prem currently.

They are a technology enabler for us. It is a part of one of the core functions in the organization, where the operating system supports running various services, not just on devices but also SQL-based services and applications. They are definitely a technology-enabling organization for us. 

We have the ability to manage all of our infrastructures in one area. The support is also there. We utilize it in our organization due to the fact that it is very good.

The regular updates and fixes from them for vulnerabilities help with risk reduction. To maintain compliance, we have a relationship with the vendor. They assist us in making sure that we have all our vulnerabilities covered. From a business continuity perspective, we make sure that we use the technology to its best capability.

Red Hat Insights provides vulnerability alerts and targeted guidance. It definitely minimizes your downtime. You have more proactive monitoring than reactive monitoring. A lot of the tools out there only give you the capability to handle something that has already happened. This is something that enables you to be more proactive and do your patch management for security vulnerabilities and so forth.

The high availability capability and the support functions we get from Red Hat Enterprise Linux are among the most valuable features. 

Also, Red Hat Insights is a key feature. You have a central view of all of the infrastructure in the organization. It is definitely something that other organizations need to invest in. It also streamlines things. You have the capability to have reporting, insights, and other things within one space.

One area for improvement could be moving towards a more agile DevOps way of working. Other technologies out there have enabled agile and DevOps practices, and this is something Red Hat Enterprise Linux could focus on. 

Our organization has been using Red Hat Enterprise Linux for quite a few years. Following LCM, we always stay up to date with the current version.

Red Hat Enterprise Linux is definitely stable.

It definitely has scalability from an up-and-side perspective.

Customer service and support are very good. We can always rely on them to assist when we run into issues. I would rate them a ten out of ten.

Positive

We have multiple operating systems in our landscape, but Red Hat is most likely the leader as an open-source solution. The choice of a solution comes down to fit for purpose. Red Hat Enterprise Linux fits our purpose.

The biggest return on investment is reliable support, as we can always rely on them to assist with any issues.

In terms of total cost of ownership, it is definitely something for which you have to work with the vendor and ensure that you have a cost-effective solution in place.

I work closely with the licensing department in determining licensing costs and requirements. Pricing is something that needs to be worked out with the vendor. The more you have, the less you pay. That is the model nowadays in IT, but it is very cost-effective. You get what you pay for.

When choosing a solution, it is crucial to ensure it is fit for purpose. There is a reason why you pay for support. At the end of the day, it comes down to the support that you get from the vendor.

We do not utilize the containerization part, but definitely, in the future, we will move to a hybrid way of working. Everyone is moving to more of a hybrid cloud solution these days rather than having it only in the cloud or on-prem. Red Hat Enterprise Linux supports working in a hybrid environment. It is definitely an enabler.

I would rate Red Hat Enterprise Linux a ten out of ten.

The primary use case for Red Hat Enterprise Linux is automation. We have Ansible running on some Red Hat Enterprise Linux servers, and a lot of it is geared towards automation. We have the automation of processes like patching, upgrades, OS enhancements, or OS upgrades. Additionally, our stores run on Red Hat Enterprise Linux.

Red Hat Enterprise Linux is pretty secure, but we rely on our network products to handle a lot of our security. We have Cisco products. These servers that we are currently running are not necessarily tightened down on the ports, traffic, etc. We rely on Cisco firewalling to handle a lot of the traffic, load balancing, and so forth. I have not configured a lot of security per se right on the server itself at a kernel level.

I like the knowledge base. They have a pretty good knowledge base portal. On their website, they have a lot of great classes. I do appreciate doing that. I have taken several myself, so I am pretty impressed by that.

We use Ansible Playbooks for patching our devices, especially those that are out in the field. We are using Ansible Playbooks to handle patching. We are using the systemctl command that goes into the repos to grab whatever patches we need. So far, the management experience has been good.

I have used a lot of different Linux distributions, and one thing that I like about Red Hat Enterprise Linux is the support. The support from Red Hat is very good. They offer excellent customer and vendor support. 

The ease of training is great, and I appreciate products like Ansible Tower. 

Its interface is good. It is a very solid operating system.

Some of the documentation that I have run into or encountered appeared to be a bit outdated. That would be an area for improvement.

I have been using Red Hat Enterprise Linux since early 2000. It has been about 20 years.

Red Hat Enterprise Linux is very stable. I have not experienced any instances of crashing with the Red Hat servers that I have worked on.

Other than the issues with the legacy software or some of the IBM AS/400 that we tried to add to it, it has been pretty seamless. Building them out and migration to the data center or the VMware environment has been pretty seamless. 

Customer service is great. We use a support portal to open a ticket, and the response time is good. We usually get an email response or an update to the ticketing system, and then if necessary, we get a callback within four hours. The response time also depends on the priority. If we are looking at a massive data center outage, I am sure it is a priority one. Most of the tickets I submitted took one to four hours.

Positive

I have used SUSE in the past. They have a pretty good support system. They have got a good OS. I am not sure what the market share is for those guys, but they are pretty good.

Our environment is a combination of the cloud and on-premises, but we primarily use Red Hat Enterprise Linux on-prem. We have a few development test servers running on Azure. They are not used in production. They are just for testing.

I was involved with the migration from SUSE to Red Hat, but that was close to a decade ago.

From what I recall, the initial setup was not that difficult. We did have some engineers from Red Hat who came out to help us. It would have been more difficult if we did not have them there, but from my recollection, it was not very challenging or difficult. We were able to get that done pretty quickly. There were some issues with legacy software, but those applications were built on the Windows platform. They were a little bit of a mess. Other than that, it appeared to go pretty smoothly for us.

It does not require much maintenance. Other than patching and keeping up with bulletins as to what might be out there, there is not much. There is not a huge amount of maintenance. They run pretty solidly. The uptime is great. I do not have to restart a lot of these servers. I might have to restart a service here and there, but nothing that I can remember.

We had help from Red Hat engineers during the implementation.

Red Hat Enterprise Linux provides a much more secure and stable system than Windows infrastructure, and the support is also great. Of course, you pay for the support.

We were able to see its benefits after some time. Some of the returns are seen after a while, not immediately. Sometimes, migrations might be difficult to do if you are running legacy software.

I am not involved in the budgetary aspect, but from what I understand, the pricing is competitive, similar to what we paid for SUSE.

Having a solid foundation in Linux can be very helpful. Learn as much as possible. Automation has become a very important part of the industry now. Learning how to automate with Ansible, Kubernetes, Docker, and Python along with Red Hat Enterprise Linux should set you up for success.

We have not tried Red Hat Enterprise Linux Image Builder or System Roles. Image Builder sounds good, but I have not tried Image Builder. We build our images from vCenter. Image Builder would definitely be something to check out.

Using it in a hybrid environment is a very interesting concept, where we keep some of the hardware and applications on-prem and then maybe rely on Red Hat to handle some of the networking or other configurations externally. I would like to try that hybrid approach.

I would rate Red Hat Enterprise Linux an eight out of ten.

I work on SAP HANA, which is on Red Hat Enterprise Linux.

Red Hat Enterprise Linux has a good support portal that I rely on.

The system rules are helpful for segregation of duties, as they provide us with more feasible access to the system, allowing us to register it accordingly.

We immediately see the benefits of Red Hat Enterprise Linux.

From an administrative perspective, the cloud platform is the best because we don't have to wait long. It's a portal, so we can access whatever we want through it, whether the Azure portal or the AWS portal; we click, and it'll purchase it for us. Some deployments take 30 to 40 minutes. But in most cases, especially for small services, it's just a few seconds to three minutes. From a business perspective, the pay-as-you-go concept is where we only pay for what we use. So those are the two things I like most about the cloud version of Red Hat Enterprise Linux.

Using Red Hat Enterprise Linux on the cloud can become costly over the long term.

I have been using Red Hat Enterprise Linux for six years.

Red Hat Enterprise Linux on the cloud is stable with a 99.9 percent uptime. Regional redundancies are used to ensure data accessibility.

The initial deployment was a little challenging until I became familiar with the solution through the portal. We did encounter a handshaking issue with Azure that required submitting a ticket to Microsoft, but otherwise, the process went smoothly. A team of four were involved in the deployment.

The implementation was completed in-house.

I would rate Red Hat Enterprise Linux eight out of ten.

We have to apply patches weekly, monthly, or quarterly, depending on their purpose.

We had no concerns about using Red Hat Enterprise Linux in the cloud because both AWS and Azure supported it, and they provided support if needed.

The primary software utilized across our business units is S4HANA, which runs on our SAP server hosted on Red Hat Enterprise Linux. Consequently, most Red Hat systems in our environment support SAP-related services. We operate approximately 105 Red Hat Enterprise servers dedicated to running these SAP services.

Red Hat Enterprise Linux was implemented due to its robust infrastructure, which allows us to efficiently manage our enterprise servers on a large scale using tools like Red Hat Satellite, Insight, and Ansible. This centralized management simplifies the orchestration and control of our extensive RHEL environment. Red Hat Identity Manager also ensures secure authentication and authorization for our remote systems. Beyond infrastructure, Red Hat's robust support is invaluable, providing timely solutions to complex issues. The operating system's strong security posture, including rapid patch deployment for vulnerabilities, further solidifies our decision to implement RHEL.

Red Hat Enterprise Linux simplifies risk reduction by integrating Red Hat Insights. This provides a comprehensive security posture assessment of our Red Hat systems, offering easy-to-understand best practice recommendations and applicable actionable remediation steps.

The knowledge base offered by Red Hat Enterprise Linux is detailed and contains numerous articles that can help resolve our issues.

Red Hat Satellite simplifies our patch process by helping us meet audit and compliance needs. We've set up a lifecycle environment within Satellite to test patches on development and quality systems before deploying them to the operating system. This allows us to roll out patches based on the environment, ensuring thorough testing before reaching production. Additionally, we leverage Ansible automation to streamline provisioning and manage patches effectively. While automation is ongoing, we have successfully implemented Ansible and Red Hat Satellite for provisioning, and we continue to identify areas for further automation within our environment.

Red Hat Insights provides best practice recommendations based on regular system assessments. Like other security tools like Microsoft Azure Defender, it can access a system to offer security improvement suggestions. I have a Red Hat Insights certification and find the tool valuable. It generates actionable recommendations that can be easily implemented through automated processes like FastScript, making it an efficient way to leverage data insights for enhanced system security.

Since implementing Red Hat Enterprise Linux, we have experienced high performance, improved security, excellent support service, and easier system management.

Red Hat Enterprise Linux has enhanced our security posture through timely security patch releases and best practice recommendations, which collectively have increased the protection of our data systems.

Red Hat Enterprise Linux allows me to manage all my Cloud and on-premise systems from one console.

The most valuable aspect of Red Hat Enterprise Linux is its ease of management. A robust suite of tools, including the user-friendly GUI and the powerful Red Hat Cockpit web portal, simplifies system administration. Cockpit provides a centralized platform for managing hosts, while Red Hat Satellite or automation servers excel at overseeing large fleets of radar systems.

Red Hat Enterprise Linux training and certification opportunities for engineers and administrators could be improved. While I have benefited from free training offered by other companies like Microsoft, I have not had similar opportunities with Red Hat. Despite holding a Red Hat certification, I incurred significant costs to achieve it. The training required for these certifications is expensive, and it would be advantageous if Red Hat provided more affordable training courses.

I have been using Red Hat Enterprise Linux for seven months.

Red Hat Enterprise Linux is highly stable.

Red Hat Enterprise Linux is scalable.

The support is good.

Positive

I have used Ubuntu Linux, Windows Server, and other solutions. Compared to these alternatives, Red Hat Enterprise Linux stands out as superior in terms of ease of management, security, and support.

The initial deployment is straightforward. Deploying it manually takes about fifteen to twenty minutes from start to finish using it manually.

I would rate Red Hat Enterprise Linux nine out of ten.

We have 15,000 users all across Africa that use our systems.

Red Hat Enterprise Linux requires periodic maintenance to apply security patches and updates.

I recommend Red Hat Enterprise Linux and conducting a proof of concept to ensure it aligns with our requirements.

We have extensive contracts with Red Hat. We have it for the operating system. I manage the cloud deployment for GCP, and we have got Red Hat Satellite running in GCP. All of our VMs run on Red Hat Enterprise Linux in the cloud. On-prem, we are running Red Hat Enterprise Linux on our OpenShift cluster, and we have a supercomputer that has got 753 nodes with 50,000 cores running on Red Hat Enterprise Linux. We use a lot of the other products too.

There is consistency across the deployment. Generally, when you are looking to hire people, if you hire people who know Red Hat Enterprise Linux, they have a certain level of understanding that goes along with using the operating system.

It is easy to secure. It has a lot of built-in security features, and it is very stable, which is a big deal.

It makes it easier to have one team that deals with both on-prem and cloud because there is a uniform operating system and tooling. You do not have to have a set of admins where one knows one thing and the other one knows another.

Red Hat Enterprise Linux has enabled us to centralize development. We are using the same platform everywhere. It is the same tooling, and everyone is working in the same system.

We are using Red Hat Enterprise Linux for containerization projects. We are building out OpenShift on-prem right now on bare metal. We are running the hub cluster from GCP to spin up the bare metal cluster on-prem. We will hopefully be moving more and more things towards containerized workflows. We are running OpenShift, so it all runs on top of Red Hat Enterprise Linux.

For security, SELinux is built in. It is out of the box. It is built towards building a secure system. We are in the process of working on compliance and getting this 800-171 certified. That is in process. They have regular security updates and lots of tools for rolling out updates. In that sense, there is a continuous upgrade path that is well-worn and fairly easy to maintain.

In terms of portability of applications and containers built on Red Hat Enterprise Linux for keeping our organization agile, when it is in a container, it does not matter if you are running a UBI container or some other sort of container. If you have an environment that will run a container, you can throw a container in it, and it will run, so the portability does not belong to the OS at that point. It belongs to the containerization system.

It is consistent. It is geared toward security. I am used to it. I know only Red Hat Enterprise Linux. I do not know Ubuntu or any of the other flavors of Linux.

It is good. I do not have anything to improve for Red Hat Enterprise Linux, but CentOS could be open-source again.

I have been using Red Hat Enterprise Linux since 2014. I have been using Red Hat since 1.2. It was probably 1998.

It is very stable.

We have a cluster with 50,000 cores. It is pretty scalable.

Their customer service is good. We have a TAM. Our TAM is great. Without a TAM, it is hard to get new tickets through.

I have used many solutions. I have used many that predate Linux. For Linux, I have run Slackware, but that is just for fun. Professionally, it has all been Red Hat Enterprise Linux. 

Our deployment experience is good. For the things in the cloud, I use Satellite. I build images and deploy from images to the cloud. It is a mutable deployment chain rather than a standard upgrade path.

We deploy it in-house.

The vendor management takes care of that. 

We have an enterprise agreement. From our department's standpoint, everything gets rolled into the enterprise agreement, which is great because we never see it.

To a colleague who is looking at open-source, cloud-based operating systems for Linux instead of Red Hat Enterprise Linux, I would say, "Why would you look at something other than that?" I have built things on Fedora and Red Hat Enterprise Linux. I was out of the industry for a while, and I came back, and I focused on Red Hat Enterprise Linux because it pays better. There are more standardized jobs in the area if you know Red Hat Enterprise Linux. The certification that you get from Red Hat means something quite specific.

I would rate Red Hat Enterprise Linux a nine out of ten.

We are using Red Hat Enterprise Linux for running various things. We have a lot of virtual machines. The applications that are running on it are a bunch of shell scripts for processing orders, marketing campaigns, generating reports, or running some Java applications.

We have the customization capability. We can easily customize it, and we can also automate and deploy it. I have a command line interface. I am a command line junkie, and I am able to use that, config files, and Ansible to be able to easily figure out what I need to do to automate things. It feels like I know what it is doing and how to make it do what I want. I do not have to weave some magical arcane hack the way I have to do in Windows.

Red Hat Enterprise Linux has enabled us to centralize development in a lot of ways. We have it hooked in through our GitHub. We are trying to combine where we are storing things and then have a standard way of how we are deploying things and have some standard configurations. With every single server, we do not have to worry about how to set this up because we are doing the same thing the same way. We can just do it across the board, and then we only have to worry about the interesting parts.

Red Hat Enterprise Linux's built-in security features are great for risk reduction, business continuity, and maintaining compliance. There are published CVEs, and there is SELinux, which I do not use and I always turn it off. Firewalls and tooling around that make it easy to use. The automation on top of that makes it easy to configure. With a push of a button, it is done.

We do not have to worry too much about portability. We are coming from Oracle Linux. We were primarily an Oracle Linux shop, and because that is based on it, it just works. We have not had any issues.

The fact that it is Linux is valuable. Why I like it in general is that I know what it is doing. I can figure out what it is doing, and I can make it do what I want. I am not delving into arcane registry things.

I am still trying to figure out the features it has. There is so much that it can do. What it does really well is that it allows you to do things.

It was probably 2008 when I first started using it. The company was using Red Hat Enterprise Linux, and I was with the internal help desk supporting the Linux side.

Its stability is great. It is stable and rock-solid.

Its scalability is also great. It does not matter if the host is beefy or not. It is just going to run on it, and it is going to handle the work. Whether you have a couple of cores or 64 cores, it is just going to do it.

Their support is good. There is good responsiveness. They quickly get me to the person who knows the answer, but I have not used them much.

Positive

We were using Oracle Linux. We are switching because of some of the things. Oracle licensing has been a point of frustration. Their support is comparably difficult to work with, and the support documentation is a mess.

Red Hat is so much easier to navigate. It has been overall a much more pleasant experience to work with Red Hat.

We are using it on-prem, and then our cloud is a Kubernetes cluster on AWS, so it is basically on-prem.

Our deployment model is a manual kickstart with Ansible for configuration. My experience with deployment is good. I kickstart it and then hit it with Ansible, and it is done. It is very easy.

I did the deployment on my own.

We have not yet seen an ROI. It has not been in for long enough. There are no savings in terms of manhours because the actual day-to-day usage remains the same with Oracle Linux or Red Hat Enterprise Linux. However, getting some of the metrics with Red Hat Insights is going to be helpful as we get into a better patching cycle. I am anticipating an easier life.

We are expecting an overall decline in the costs because of the differences between the Red Hat licensing and Oracle licensing. We are expecting a net decrease in overall cost. For using it, other than the license, there is no cost.

The setup cost is non-existent. With licensing, there was a little snafu because I misread something. There was a slight learning curve because we use virtual data center licensing. We had to understand how it all maps. We had to understand how that mapping works when the hypervisors are Red Hat or VMware. There is a slight learning curve, but it worked out. It ends up being easy.

I did not evaluate other options mainly because I have had experience with it before. From my prior experience, I already knew what I wanted.

We are trying to use Red Hat Insights. I need to finish updating the playbooks to hook our host. We are in the midst of transitioning from Oracle Linux to Red Hat Enterprise Linux. I have not fully hooked everything in, but we will be using Red Hat Insights.

We just started using Red Hat Enterprise Linux for containerization projects. We have not yet seen any impact of Red Hat Enterprise Linux on containerization projects.

If a colleague is looking at open-source, cloud-based operating systems for Linux instead of Red Hat Enterprise Linux, a lot of it would depend on their use case, what they are going to need for it, and whether they have an enterprise environment. There is a cost associated with it which can be a downside. I am an open-source lover. I do not like paying for stuff, but I get it. They need to look at the cost, and if the cost is prohibitive, they need to look at something that is compatible and as similar as possible.

Overall, I would rate Red Hat Enterprise Linux a nine out of ten. I generally do not give out a ten. There needs to be something spectacular for a ten, so that is my personal bias against the top of the scale.

We use Red Hat Enterprise Linux to manage our database.

Red Hat Enterprise Linux helps reduce our risk.

Red Hat Enterprise Linux helps to maintain compliance by making the data required easily accessible to us.

The knowledge base offered by Red Hat Enterprise Linux is good and they provide good training.

Red Hat Enterprise Linux System Roles help manage our database.

I use the Red Hat Enterprise Linux Web Console and Command Manager. The Web Console helps monitor our database and run queries in Command Manager.

Red Hat Enterprise Linux enhances our security.

Red Hat Enterprise Linux helps us meet security standards certification requirements, which is advantageous.

The security of the OS is the most valuable feature.

The labor required to maintain the on-premises storage systems has room for improvement.

Red Hat Enterprise Linux can benefit from more promotions and demos.

I have been using Red Hat Enterprise Linux for one year.

Red Hat Enterprise Linux is stable.

We run Red Hat Enterprise Linux in parallel with other OS systems. We are satisfied with how well Red Hat Enterprise Linux works with our other products.

Upgrading the versions is straightforward. All the stakeholders from the system side, database side, and consultants are involved in the updates. 

The cost of Red Hat Enterprise Linux is reasonable. 

I would rate Red Hat Enterprise Linux a nine out of ten.

We have ten people that are using the solution in our organization.

I use it for almost everything. I run a company in South Texas and Mexico. We are a cloud service provider, and we have implementations for almost everything. We are using it for websites, virtualization, orchestration, and containers, and we are also using it a lot for telecommunications. We use almost all of its features.

We have many versions. We have versions 8, 9, 9, 9.1, 9.2, etc. 

When we implemented all the security frameworks with RHEL three years ago, that was the first time we had a non-issue audit. It was a great implementation.

It helps with the headcount. With the kind of orchestration and automation that we have, we don't need a lot of engineers. We can have fewer engineers on site.

There is reliability. We can rely not only on their operating system but also on their server. Red Hat not only has operating systems; it also has many different servers.

It helps to achieve security standards certification. It is one of the most important things that I do every single day. We need to comply with a lot of frameworks of security, such as ISO2701, ISO2717, ISO2721, PCI compliance, and HIPAA for the health sector. We also have some local compliance requirements. For example, in Texas, there is one for financial entities, and in Mexico, there are several based on GDPR. It is very important for us.

It is helpful when it comes to building with confidence and ensuring availability across physical, virtual, and cloud infrastructures. There are many features to ensure or enforce high availability.

It helps us to centralize development with OpenShift. We don't do a lot of DevOps, but we have a supply chain where everything goes to the on-premises cloud, and then it is pulled to the public cloud.

The Red Hat support is most valuable. My team and I are really good at Linux, and we can do almost everything in any kind of Linux solution, but sometimes, we have a really nasty problem, and the Red Hat engineering support at the third level has been fantastic. They know how to fix almost everything. The reason why I pay so much money to them is to have this kind of service and assurance.

Containers are the strongest feature that they have. In terms of the quality, between VMs and containers, Red Hat with OpenShift is fantastic. I have more than a million containers right now in my cloud, and it works fantastically.

Network virtualization resources could be better. When you have any kind of trouble with network virtualization, such as with OVS, which is like a switch in a virtual environment, it takes many hours to find what is happening. Other vendors, such as VMware, and even other Linux implementations for network virtualization have better resources. It is much easier to escalate, and there is better documentation.

I don't use Ceph, which is their software-defined storage, because they don't have the best price. It doesn't make sense when you compare it in terms of the hardware cost, better performance, and better capabilities. That's my main complaint at any meeting with Red Hat. I want to use Red Hat Ceph, but it costs so much money.

I have been using it for about 20 years.

If you have the correct hardware, it is stable, but if you do not, you will have a problem any time soon.

It is reliable. If you don't know how to secure your Linux implementation, Red Hat can do it for you with two or three simple clicks, and you will be very secure without any kind of knowledge.

It is scalable. It is not the most scalable in the Linux area, but for 99% of the companies, it is scalable enough for any kind of workload.

We have plenty of clusters, and we probably have more than 400 servers. We are a private cloud solution provider. We don't have anything in the hyper-scale, such as AWS, Azure, etc. We own everything: the data center servers, racks, networking, and storage. That's our competency, and this way, we can provide a better solution to the kind of customers we are focused on.

We have three different locations: one in the states and two in Mexico. At each location, we have at least three different clusters for three different market verticals. We have one for the financial, one for the healthcare system, which has a lot of compliance requirements, and one for the general public, which doesn't have too much sophistication.

We plan to increase its usage, but it is not my decision. If I sell more, I will buy more.

They are exceptional. We have a lot of experience in these matters. Usually, when we have any kind of issue, it is a really difficult one, and I need to talk to somebody at level two or three in the support area. They skip the line for us because we send everything perfectly documented to open the PR. They put us in touch with the best engineer to solve the issue. If the engineer isn't able to understand what is happening, usually, he calls the RHEL developer or engineer that handles that part of the code. They are usually able to fix a complex problem in less than eight hours.

Their support is fantastic. I have dealt with many different vendors, but Red Hat is the only one that does it in this way. They do it in a simple and fast way. They understand you, and they are willing to help you and fix everything. If you have a problem or situation that is causing downtime for the customer, they understand that it has an impact on your business, and they are affecting the revenue of the company. They are really committed to fixing it as soon as possible. I would rate them a 10 out of 10.

Positive

We use RHEL and Canonical. We have some SUSE implementation in the Linux area. In hypervisors, we use VMware and Hyper-V. So, we are in many different technologies, and we are not always on RHEL. RHEL has almost 45% of all our hardware. It is the biggest one, but we use almost all the solutions. In terms of security, Red Hat and Canonical have almost the same level of security.

I am no longer involved in its deployment. I last deployed it about four years ago.

In terms of maintenance, every server requires some kind of maintenance, but we have everything automated. We don't put any effort into it. 

We have 8 to 12 people for deployment and maintenance. They handle the deployment and change of the environment in the data center. For DevOps, I have another team of probably 30 people. They develop solutions for customers.

We have definitely seen an ROI. The return on investments comes in the 14th or 15th month.

For the basic operating system, its price is fair. It is not cheap, and it is also not expensive. For the OpenShift or OpenStack implementation, the cost is a little higher than what I would expect, but it is doable. For a storage solution, it is almost impossible to pay.

In comparison to open-source competitors, RHEL has the most cost-effective open-source subscription model. The way I pay for everything, such as Ubuntu or RHEL, is very similar. When you compare how much money I put in for a customer, in terms of licensing, or even support, my margins with RHEL are really good. If I compare it with VMware or Hyper-V, which are not open source, the difference is totally insane.

I am a vendor-agnostic solution provider. If my customer needs something with RHEL or something that's specifically with another vendor, I use that. If they don't know, or there is a new implementation, I surely send everything to the RHEL implementation. In the end, this is not my decision. It is a market decision. If my customer is telling me that they should be on RHEL, I will bring in RHEL for them.

I would advise paying for the enterprise-level support at least for the first year.
For sure, it is expensive, but it would be helpful. With experience, you can downgrade to the second level.

We have had some issues with container compression that broke everything. So, I don't recommend using it if you don't know how to fix everything.

The biggest lesson that I've learned from using this solution is to read before starting the implementation.

I would rate it a 9 out of 10 because there is nothing perfect.