There isn't a better operational system in the world right now. Maybe someone will invent one, but for now the solution with Linux and Unix is the top option. 

Windows is a terrible operational system that relies on pointers so I don't like using it at all. It also has mathematical flaws that I don't like. 

The Linux solution can run on inter-platform so that puts it in competition with Red Hat which is marketed better and has bandwidth. 

Red Hat has become the standard since it was purchased by IBM and users are migrating to it. Red Hat was not an option for us because we had specific needs. 

We chose the solution because it supports our HPE Intel server and ACSLS. 

The evaluation of other solutions was not carried out at an organizational level but at a personal level, and I looked at Microsoft-based products. There are two different scenarios, one of which, at a personal level, I might have a different operating system on my computer, while in the second one, my office might be providing me with some different machine. But we need to acknowledge the fact that the company's decision is of paramount importance.

The majority of our evaluated solutions were Red Hat Linux.

I have worked on AIX, Solaris, and Red Hat Enterprise Linux.

We were driven to some part by how the cost of licensing of Oracle databases and needed to ensure the most cost effective way to do this, so really OVM was the only option for us .

About 10 years ago, we were using this product a lot. Over the years, when we saw that it was not that scalable, we looked around for different solutions. We moved new applications onto the new product’s environment. This one we left as-is, so right now, it is in containment; meaning, any new product or any new applications are not porting into this application.

The number one criteria when choosing a vendor such as Oracle is reliability. Number two is cost. Number three is efficacy.

We chose this solution because it doesn’t break down. It provides good performance. It's reliable. Reliability was one of the factors in the decision to choose this.

Yes, Rocky Linux, Alma Linux and OpenSuse

We evaluated a few other OS providers. Those include RedHat, CentOS, Debian and openSUSE.

The marriage with the database, to me is the most critical or most important item. Now I know that sounds like I may be pandering to Oracle, since they make the database and they make the OS, but it's just a natural. The same as with Microsoft SQL Server. Why do you run it on Windows? Now, I know it's coming on Linux, but where will it probably run best for a long time? Probably on Windows.

Having that marriage between the OS and the database is critical, and Oracle really understands their database, better than anybody else, and they seem to understand Linux as well as anybody else, and they were an early contributor, so it's just a natural progression to put the database on their Linux.

We had primarily been using Red Hat Linux in the past. We also evaluated SUSE Linux and CentOS.

I didn’t evaluate any other options, because we use Oracle Linux only for Oracle databases. And the Oracle database was in Red Hat and was supported only for two OSs available for my employer: Red Hat and Oracle Linux.

We are using Oracle products including Oracle RDBMS, Oracle FMW applications and Oracle EBS, so this is why the strongest option is always Oracle Linux.
Unless there is a hardware-OS relationship (i.e., IBM AIX and IBM Power Systems), we always use and we always recommend that people use Oracle Linux as the operating system.

I decided based on my experience with CentOS, Ubuntu, Kali Linux.

There are many different flavors of Linux but I haven't gone deep enough in them to compare them all.

We evaluated Red Hat Linux a couple of years ago, but both products are very close. Only Oracle Linux has specific features that can be optimized for Oracle products (Database, Engineered systems etc.)

We used several kinds of Linux. Something like SUSE Linux, Red Hat Linux, Ubuntu Linux, and Oracle Linux but especially those with stable kernels. In some software environments, we do not need a stable kernel's performance level, but the machine may be stable in most cases. Before this year, we used Ubuntu. Ubuntu is speedy but not very stable. Its development is very quickly rolled out, and they change it every half year.

Before choosing this product, we also considered Red Hat and SUSE. However, we chose Oracle Linux to use the Oracle kernel optimized for Oracle applications.

I have worked with other Linux distributions like Ubuntu and CentOS. I have also worked with Oracle Solaris, HPUX, and AIX.

We evaluated Red Hat Linux.

We did not evaluate alternatives.

Yes, RedHat Enterprise Linux 6.5, but improvements in Oracle Linux and better support price incline the balance to that one.

Nobody else was on the shortlist. We chose it because we were using it.

We wanted to implement a virtualized environment under the Oracle VM for x86. This was the right product for that, so we did not look at any other products.

We had previously tried Red Hat Linux but stuck with Oracle Linux for our installation of other native Oracle products.