We first used it for application installation to run applications on Windows. We had it running on Windows. We then upgraded it. It was still on the IBM platform, but it was still x86. We have now updated it, and it is now running on IBM Linux Z.

We use it for Internet banking, core banking applications, and other peripheral applications.

It has helped with consolidation. When we first started to do clusters, we were using Oracle cluster and Red Hat cluster. The Red Hat cluster was more stable than the Oracle cluster, so we had to uninstall the Oracle cluster and just use the Red Hat feature to have floating IP addresses between two cluster nodes. Having it in a cluster was the single most useful application of Red Hat in the environment.

We use Red Hat Insights, Ansible, and Satellite. Red Hat Insights is helping us big time. A year ago, I was looking at bolstering my team to about five or so administrators. With Red Hat Insights and other tools, I am satisfied with just two administrators. They are there just to manage the system and not necessarily go down into the trenches.

It seems that Red Hat Insights provides vulnerability alerts and targeted guidance, but my team would know that better. I manage a team that does that.

Its stability is most valuable. Its administrative aspect is also good. It is relatively easy to administer. I am familiar with AIX. AIX is super easy. I did not have to struggle much to adapt to Red Hat.

They can make the extended file system dynamic. Currently, we have to bring down the server to add an Hdisk. We cannot extend the database on the fly. We have to have downtime. We want to ensure that we make the blackout periods as minimal as possible. Currently, there is a gap in the file system management. I want to be able to expand the file system in a simpler way and have the application or the database use that expansion without any downtime.

I have been using Red Hat Enterprise Linux since 2004. It has been 20 years.

There is no problem with stability. It is stable. We have a couple of Red Hat Enterprise Linux 4 still running. We also have Red Hat Enterprise Linux 6 systems. The hardware is functional, but the application was retired. We cannot get an update for it. It has been running since 2008.

Its scalability is fine. There is no problem with scalability. We can do it in real-time. Now with containers and other things, we can scale on the fly without much downtime. We can build a small system and scale it. We can start at a much lower level than several others.

It has improved tremendously. I remember when it used to be centralized. I have been to North Carolina to get training, but now they can come to us for the training. The whole support architecture has improved. We can reserve hours for calls when the need arises. If we do not use it, it is reallocated the next month to some other project. They are doing well. I am impressed.

We were using and still are using AIX, but most of the applications have been imported, so we are between AIX and Red Hat. We are also using Windows, but Red Hat has stood out. It is not yet there with AIX, but it is getting there.

We were using Ubuntu and a few other flavors, but they were not organized. They were still too open. The support and the training for Red Hat Enterprise Linux was spot on. It was exemplary. We could find support easily.

We have them in clusters, and we also have standalone ones. We have DR where we synchronize with DR. We synchronize at the file system level with DR, which eliminates some of the application limitations.

We are using it on-prem, but we have applications to be upgraded in another 18 months, which would be a hybrid cloud.

Its installation the first time was overwhelming. Once you get used to it, the team settles down, and you have knowledgeable people, it is a breeze.

We have an integrator, a reseller, and a consultant. Somebody would come in and help us connect the dots. I guess that is their reseller, and then the integrator helps us properly connect the dots.

Pedro is our accounts manager. He probably comes from Puerto Rico, and then there is Lincoln Walters from Jamaica. Together, they help us identify the resources we need for the things that we want to do.

The biggest ROI is in terms of the reduction of human resources required to manage and maintain it. The administrative duties have been vastly reduced. You can even have resources from Red Hat. They have something where you can block certain hours a month and you can just use them as needed. If you do not use them entirely, you can reallocate them. That means you can reallocate unused resources. There are savings on investment.

We are still learning about it, but our TCO has reduced because we do not have to have as much manpower, hardware, and processes to manage and operate.

Licensing is the most attractive part of it. With Red Hat Insights and Ansible, we now know that it was done with the intention of simplifying the licensing so that you get the support for what you have and not necessarily what you want to have.

Red Hat Enterprise Linux has not helped us to centralize development. We have not capitalized on that as yet. I am here at the Red Hat Summit to learn about Kubernetes and containers. It is all new to me, and at this point, I do not know from where to start. I am getting exposed to so many things, but I still need to understand from where to start. I need to know the foundations. In about 18 months, we will be going to containers. We have people developing Dockers, Kubernetes, and other things, but we need to find a way to integrate them. We will have containers running on OpenShift, but we need to know how to secure, store, and manage those containers.

I have participated in a few presentations, and I see that there are prescribed ways to ensure that you maintain compliance by upgrading. In one of the presentations, one of the presenters said to not expand or scale too quickly because some of the applications get left behind. That is something that I am taking away.

The portability of applications and containers built on Red Hat Enterprise Linux will be good for keeping our organization agile. It is flexible. They say, "Build once and run anywhere." That is the buzzword for me.

To a colleague who is looking at open-source, cloud-based operating systems for Linux instead of Red Hat Enterprise Linux, I would say that Linux is for beginners, whereas Red Hat Enterprise Linux comes with the bells and whistles and the stability for business. It is an enterprise-grade software.

Overall, I would rate Red Hat Enterprise Linux a nine out of ten. There is innovation and adaptability. Ten years ago, it was unheard of. It has grown, and it has been growing tremendously.

We have a database that we maintain for root passwords, and sometimes I need to break the root password to reset it. We work a lot on logical volumes where I need to grow and shrink volumes on the fly. I did not have to shrink the logical volumes much, but I worked a lot on growing logical volumes on the fly to make them available for the database team. I have done network-related things. I configured network multipathing or IP multipathing where we can parallelly route the traffic to multiple ethernets.

I work a lot on user-related issues as well. We are also using Ansible a lot for automation. I am writing some playbooks, so there are a lot of use cases.

Red Hat Enterprise Linux helps us a lot. We host a lot of our applications on the Red Hat platform. We are using Red Hat Enterprise Linux for both on-prem and VM platforms. Most of them are VMs, but we do have some old legacy systems where we have Linux running on some Dell architecture. Our goal is to get rid of them this year and implement everything on virtualization because virtualization is growing a lot.

Red Hat Enterprise Linux has enabled us to centralize development. We are using it in the production and lower environments. We are using a common platform for our deployments. We have a centralized environment.

In terms of portability of applications and containers built on Red Hat Enterprise Linux for keeping our organization agile, it is flexible. Agile methodologies are very popular nowadays, and they help with coordination between dev and production teams. It is fulfilling the gaps between these teams. It is helpful.

I see so many features in Red Hat Enterprise Linux that I do not see in other Linux operating systems, such as Ubuntu. That is why Red Hat is very popular. All my experience is mostly on the Red Hat side. In terms of features, I like breaking root passwords, and I like the XFS file system over ext4.

I have not used it on the cloud side. I have not heard much about how Red Hat is doing on the cloud side. In the market, AWS and Azure are very popular, and they have captured most of the market. If Red Hat can improve on the cloud side, they can retain their customer base. Their customers do not need to go out for other cloud resources, and they can use the Red Hat cloud.

We are using it on-prem and in the virtual environment on VMware. We are using a cloud, but it is not a Red Hat cloud. We are using AWS in our organization. We have some EC2 instances deployed with Red Hat Enterprise Linux images, but I cannot say it is a Red Hat cloud. It is an AWS cloud, and we have instances. We are depending on a third-party cloud. If Red Hat provides that kind of service to our company, we can retain Red Hat. We do not need to go for a public cloud.

I have been using Red Hat Enterprise Linux for almost 12 years. I started with Red Hat Enterprise Linux 5.

It is a stable platform, but our company still wants to stick to the older version. They do not want to change the application base. They do not want to take risks. Unfortunately, Red Hat is not able to help to provide the patches for older versions. They suggest upgrading, but management is not doing that, so the Red Hat Enterprise Linux side is good, but our management side is bad.

Its scalability is good. We plan to use it more. We are growing. As our infrastructure grows, we are buying more licenses.

Their customer service is excellent. I like it. I am in touch with Ed who is one of the support engineers with Red Hat. He is helping me.

I am also in touch with a few other people at Red Hat. If I run into any issues, I can simply email them, and I get a quick response from them. Based on the support I am receiving, I would rate them a ten out of ten.

We did not use any similar solution previously.

We are using it on-prem and in the virtual environment on VMware. Our cloud provider is AWS.

We are using the CI/CD model for Red Hat Enterprise Linux. We are using blue/green deployments as well for our containerized applications, and we have some canary deployments.

My initial deployment experience with Red Hat Enterprise Linux was not great. It was not as easy as the current version. It was difficult during those days. We had to load the GUI and then change to CLI. It is better now. Red Hat has made some improvements in the newer versions. The current version 9 looks better than any other previous version.

I did not use any integrator or consultant. I downloaded an ISO image from Red Hat. I downloaded and installed it myself, and it worked very well. I did not run into any issues with the installation process.

Over the last few years, we have been within budget. We do not have any constraints about Red Hat. We are a big organization. We use a lot of products from different vendors. We are working on cost optimization for some of the vendors but not Red Hat, so Red Hat is still good. We are still happy with it.

The biggest return on investment is the customer base. We are in the telecom industry. We try to get as many customers as we can. Red Hat is not the only product that we are using, but it is a major product that we are using in our company.

We are good as of now. We do not have any concerns about licensing. Its price is still good for us.

We are not using Red Hat Enterprise Linux for containerization projects. We are using Kubernetes and Dockers for that.

When it comes to patching, our goal for 2024 is to make all the systems compliant. Especially at the infrastructure and application levels, I am actively working on the compliance tasks, and our goal is to fix all vulnerabilities. I am working with someone at Red Hat on some issues because I am not able to find the exact patch for certain vulnerabilities.

For now, we are happy with Red Hat Enterprise Linux. We are happy with what we are getting.

Overall, I would rate Red Hat Enterprise Linux an eight out of ten. The reason for reducing two points is that I have not explored other operating systems very well.