

CentOS and Oracle Solaris compete in the enterprise server operating system category. While CentOS is favored for its cost-effectiveness and compatibility with RHEL, Oracle Solaris stands out for its advanced enterprise features.
Features: CentOS is known for its stability, compatibility with RedHat, and broad hardware support, making it ideal for web and database servers. Its lightweight and efficient nature is well-suited for demanding environments. Oracle Solaris offers advanced features like ZFS, DTrace, and built-in virtualization such as Zones and LDOMs, enhancing its performance and security, particularly for database and application hosting.
Room for Improvement: CentOS faces challenges with its recent support and lifecycle changes, raising concerns about its long-term stability as an alternative to RHEL. It lacks user-friendly interfaces and comprehensive driver support, hindering beginner usability. Oracle Solaris could improve its third-party hardware certification and documentation. Additionally, expanding its GUI features and x86 architecture support could increase its flexibility and adoption.
Ease of Deployment and Customer Service: CentOS is predominantly deployed in on-premises environments, with support mainly from community forums and documentation, which are adequate but lack dedicated service. Oracle Solaris also sees wide on-premise use and offers strong technical support through its licensing, providing responsive service and integration benefits with Oracle hardware, addressing enterprise needs effectively.
Pricing and ROI: CentOS is particularly attractive for organizations with budget constraints as it is a free, open-source solution offering substantial ROI through cost-effectiveness. Oracle Solaris, while technically free, often incurs costs when used without Oracle hardware due to complex licensing. Its robust enterprise features provide value, yielding strong ROI for high-end, reliable server operations.
We have saved approximately 50% of our revenue by using CentOS.
It saved a lot of time through troubleshooting, which gives us substantial room for improvement in terms of fixing things.
In terms of ROI, there have been performance improvements because Oracle Solaris is lighter.
I've seen many people across the globe interacting, and when users encounter issues, the community provides solutions.
I would rate the customer support for CentOS a 10 on a scale of 1 to 10.
When we encounter issues or need troubleshooting assistance, we almost always find answers from the community or from other people's experience shared over the internet.
The technical support by Oracle is good.
CentOS is scalable and user-friendly without requiring complex configurations.
It allows users to scale resources vertically for upgrading hardware and horizontally by adding more servers, making it suitable for modern web hosting and containerized applications.
CentOS's scalability for my organization has handled growth and changing needs smoothly.
Currently, we are using it more for horizontal scalability to run a large number of workloads on the same physical system using the built-in virtualization technologies such as LDOMs and zones.
CentOS is stable, reliable, flexible, and very useful.
CentOS's simplicity and stability make it easy to use.
I believe CentOS is stable, but we are gradually moving away from it.
The documentation and support could be improved, along with compatibility with newer hardware as hardware continually evolves over time.
Kernel parameters, sysctl config details, tuned profiles, process prioritization, optimized disk, and input scheduler choice are all points for performance optimization.
It could be brought back, but that seems unnecessary now that Rocky Linux exists.
They either have to do cross-platform migrations, which are costly solutions, or they have to change many things.
Oracle Solaris needs to improve its compatibility with office tools like Excel.
There was no cost in terms of deploying it or getting the license for it.
The enterprise subscription cost is at a certain level, but CentOS saves customers from paying additional money, optimizing costs for enterprises and startups involved in application development.
CentOS is a free product with free updates.
I find the pricing of Oracle Solaris to be affordable compared to competitors like Windows.
The best feature CentOS offers is that it's free.
CentOS has positively impacted my organization since it is open source, reducing costs significantly.
Even when a product does not function optimally, the base OS CentOS works smoothly; we can see the status of the services with the command-line interface, making it very efficient.
The operating system is lightweight, which makes it easier to use on an average computer compared to systems like Windows.
Additionally, regarding security, you do not have to implement any antivirus software.
| Product | Market Share (%) |
|---|---|
| CentOS | 4.5% |
| Oracle Solaris | 1.9% |
| Other | 93.6% |


| Company Size | Count |
|---|---|
| Small Business | 30 |
| Midsize Enterprise | 20 |
| Large Enterprise | 26 |
| Company Size | Count |
|---|---|
| Small Business | 21 |
| Midsize Enterprise | 5 |
| Large Enterprise | 31 |
CentOS offers a stable, secure, and compatible environment with Red Hat packages, providing robust performance and cost efficiency. Its lightweight, scalable design and strong community support make it ideal for handling heavy workloads with limited resources.
CentOS is a popular choice for organizations seeking reliable server and virtualization solutions. Known for its robust stability and security, it offers seamless integration and maintenance. However, after a shift from Red Hat, some challenges emerged, including weak NFS client performance and a more complex interface, which beginners find challenging alongside insufficient documentation. Despite these, CentOS remains a favored option for deploying web applications, server installations, and supporting cloud solutions, thanks to its efficient use in monitoring, databases, and telecommunications.
What are CentOS's key features?CentOS is widely used in industries requiring robust infrastructure, such as web hosting, scientific computing, and telecommunications. In data centers, companies deploy it to support virtual environments, testing, and development. The OS powers business applications, email servers, and cloud solutions, offering a cost-effective alternative to Red Hat.
Oracle Solaris is a trusted business platform that provides consistent compatibility, is simple to use, is always secure, and is designed to help you run your modern and legacy enterprise applications. The solution is the most recommended enterprise operating system for Oracle Database and Java applications and is engineered for large-scale enterprise deployments.
Oracle Solaris Features
Oracle Solaris has many valuable key features. Some of the most useful ones include:
Oracle Solaris Benefits
There are many benefits to implementing Oracle Solaris. Some of the biggest advantages the solution offers include:
Reviews from Real Users
Below are some reviews and helpful feedback written by PeerSpot users currently using the Oracle Solaris solution.
A CEO at a computer software company says, “The most valuable feature is virtualization. They have attained virtualization and it's quite simple to create the Oracle Solaris zones. The solution is quite powerful. Oracle Solaris is great due to the fact that it actually is meant for high-end servers. The high availability is great. You can clone and you can do quite a number of things with them. There's also the ZFS File system which is very good. Is one of the best file systems that there is.”
Diego A., Oracle ACE - Specialized in Systems Technologies at Telecom Argentina, mentions, “The most valuable features for me are virtualization (Containers, Zones, Security, PDOM's, LDOM's) and Performance, ZFS, Debugging with Dtrace.”
A Service Manager at a tech services company expresses that the solution is “Stable, scalable, and has easy installation.”
PeerSpot user Marcel H., Oracle ACE Director "Solaris," CEO, Enterprise Consultant at JomaSoft, explains, “Solaris includes two virtualization solutions: LDoms for SPARC and Solaris Zones. Both solutions can be combined to create private clouds. Solaris Zones is ideal to separate applications and to migrate from older to current hardware. LDoms is very efficient because it uses the hardware hypervisor of the SPARC servers. Both technologies increase Security, because they separate the applications from each other. Using the Security Compliance Framework we are sure the systems are set up properly.”
Shafiq K., Senior Manager IT Operations at a financial services firm, states, “The reliability of the solution is excellent. The security has been very good overall. We've found the solution to have good availability. The backup capabilities are quite good. The solution has proven to be quite stable so far. The product can scale. The solution is 100% free to use. It doesn't cost a company anything as it's embedded in the hardware.”
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