CentOS Linux vs. Oracle Solaris

In any role where you need raw server power, CentOS Linux is extremely well suited. It is extremely stable, and in my experience, probably the most stable of the Linux distros available. It has a very wide base of support from 3rd party sources for additional functionality that do not come already in the CentOS Linux distribution itself. It is not as appropriate for situations that are customer facing or end user facing. For those, I recommend Ubuntu Linux. But for everything server & compute related, I recommend CentOS Linux.

Incentivized

Oracle Solaris is great due to the fact that it actually is meant for high-end servers. Supports a wide range of hardware. The Stability of the solution is great. The documentation does not support some solutions, and there are no other options. Most of the product is still command-line, despite the fact that they've got a graphical user interface in some areas. For some reason, core administration is still done via command-line.

Incentivized

• First of all, CentOS is one of the most secure and stable OSes straits from the box.
• High performance on the average hardware.
• In most of my scenarios—easy and quick deployment.
• Huge KB community that helps to build and support different services on CentOS.
• Versions lifecycle.

Incentivized

• Live update for patching in conjunction with the package management functions. This ability to rollback is very convenient.
• dTrace
• Built in compliance testing.

Incentivized

• CentOS is not a great desktop platform. Although some would disagree with that statement, I think that CentOS is better suited to life as a server.
• Since CentOS is community-supported some software vendors will not officially support it because it isn't Red Hat.

Incentivized

• Takes time to learn.
• Integration into Microsoft's Active Directory.

You need to take the time to learn it. It is a massive product.

Again, written documentation is excellent, even on the older versions. The support community is the best. It is comprehensive and I would say that it global because it transcends national boundaries. Also, you find all types of people using CentOS to do all sorts of things so you are bound to find someone to talk to if there are problems.

Incentivized

The support teams are well trained and responsive. Patches are rolled out regularly and are easy to deploy and backout.

Stress testing and timing is key. You need test systems that mirror the live environments. User testing must be reflected in peak loads.

CentOS is based on RHEL, so it really came down to the costs when making the selection between our options. RHEL offered more support and features, but nothing that we specifically needed. CentOS is fully customizable, something Windows Server was also lacking in many ways. The stability and speed was unmatched in comparison to Windows, and we were not utilizing any Windows-specific software to require us to use the Microsoft alternative. My years of experience have also made it a breeze to set up and configure new CentOS instances, leading me to stay where I'm comfortable.

Incentivized

Oracle Solaris is Scalable, have a good patching capability and secure by default. You want to have something that's up and running and stable, something that's not going to crash. But if we do have an issue, we can get somebody for technical support who can help us work through the problems.

Incentivized

• CentOS's support of RPM packages makes it very easy to replicate RHEL servers for development or testing in cheap / free environments
• CentOS's minimalistic desktop environment requires additional tweaking / packages if you want to have a usable desktop environment with the niceties of other modern distributions. As a result, if developers want to use CentOS, they'll need to spend more time customizing it than other distros.
• CentOS's easy customization from the command line lends itself well to our virtualization infrastructure where setup can be easily scripted to modify CentOS's configuration files.

Incentivized

• It just runs like a top, this mean TCO is low
• We've not had issues with Solaris running on Sparc.
• Reliability is above reproach.

Incentivized