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Oracle Solaris vs Windows Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Aug 7, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
4.6
Oracle Solaris offers high ROI with stability, integration, reduced downtime, performance boosts, and cost benefits, enhancing operational efficiency.
Sentiment score
5.0
Windows Server enhances efficiency, reducing support costs by 10-70%, valued for virtualization, integration, security, and operational stability.
In terms of ROI, there have been performance improvements because Oracle Solaris is lighter.
Technology Consultant at Clarinox Technologies Kenya
You get a standard platform that is very secure and stable.
Manager, Information & Cloud Systems at a consultancy with 1,001-5,000 employees
The return on investment is evident as having efficient resources to manage our infrastructure means we are less dependent on costly external support from Microsoft.
Executive Vice President Technology at InfoEdge India Ltd
We calculate ROIs for several solutions, including Windows Server, and propose the results to our customers to convince them why they should upgrade.
Team Manager at Waters Corporation
 

Customer Service

Sentiment score
4.6
Oracle Solaris support is 24/7, efficient yet sometimes slow, with helpful tools and mixed user ratings on effectiveness.
Sentiment score
6.3
Windows Server support is praised for expertise and responsiveness but experiences vary, with some users finding delays and inconsistencies.
The technical support by Oracle is good.
SR AVP–Presales Cloud & Platform Management Services at Path Infotech ltd
They resolved our problems within the defined SLA.
Relationship Manager at Cognizant
When I had an issue with Hyper-V, the support was excellent.
Systems technician. IT Office at LNU
The technical support from Microsoft is one of the best, though there can be challenges when it comes to priority zero or critical issues, where the queue can be longer.
Executive Vice President Technology at InfoEdge India Ltd
 

Scalability Issues

Sentiment score
6.1
Oracle Solaris excels in scalable performance, efficiently handling extensive workloads with robust file systems and virtualization, despite hardware dependencies.
Sentiment score
7.4
Windows Server efficiently scales from small to large user bases, supporting resource adjustments for smooth organizational growth.
Regarding vertical scalability, Oracle Solaris is probably one of the most scalable operating systems in the industry.
System specialist at Savecore
I've worked in companies with 20,000 to 100,000 users, and it scales beautifully without issues.
Manager, Information & Cloud Systems at a consultancy with 1,001-5,000 employees
We use it everywhere, and it serves approximately two thousand users in our company as a backend service.
System Engineer at Alnajat charity
Windows Server is highly scalable; I can upgrade the hardware capacity or storage capacity smoothly.
Senior Consutant at HCLSoftware
 

Stability Issues

Sentiment score
8.2
Oracle Solaris is highly stable and secure, with rare crashes and minimal disruptions, making it ideal for reliable operations.
Sentiment score
7.4
Windows Server is praised for its stability, with recent versions highly reliable despite occasional update challenges.
Stability-wise, I rate the solution a ten out of ten.
Manager at Accenture company
The stability is better with the newer versions like 2019.
System Engineer at Alnajat charity
Very rarely do I see any blue screens or crashes.
Senior Consutant at HCLSoftware
 

Room For Improvement

Oracle Solaris needs improvements in hardware support, GUI, training, cost reduction, integration, package management, and open-source tool support.
Windows Server users cite security, performance, integration issues, setup complexity, high cost, and frequent maintenance as key concerns.
The firewall must be more capable because security is the main concern of every organization and every user.
Head Of IT at a financial services firm with 1,001-5,000 employees
Oracle Solaris needs to improve its compatibility with office tools like Excel.
Technology Consultant at Clarinox Technologies Kenya
Oracle is going to discontinue it, so I do not think any improvement is possible in Oracle Solaris.
SR AVP–Presales Cloud & Platform Management Services at Path Infotech ltd
If Windows could make the OS part lighter, especially starting and restarting the Windows Server, which needs to be quick, then it would be great since this is an area where the tool lacks a bit.
Manager at Accenture company
The support team is getting worse in terms of expertise.
Manager, IT Security at Averis Sdn Bhd
We can work with both virtual and physical setups.
AVP at a financial services firm with 1,001-5,000 employees
 

Setup Cost

Enterprise users find Oracle Solaris pricing complex; it's beneficial for performance but costly compared to Linux, with desired pricing improvements.
Windows Server licensing is complex and costly, but it's popular for its features despite pricing concerns compared to alternatives.
I find the pricing of Oracle Solaris to be affordable compared to competitors like Windows.
Technology Consultant at Clarinox Technologies Kenya
On a scale of one to ten, with ten being the most expensive, I rate it ten out of ten.
Manager, IT Security at Averis Sdn Bhd
Microsoft offers product pricing with licenses per processor and CAL licenses for accessing.
Manager, Information & Cloud Systems at a consultancy with 1,001-5,000 employees
The cost associated with Windows Server—considering pricing, licensing, and setup—is expensive, no doubt.
Executive Vice President Technology at InfoEdge India Ltd
 

Valuable Features

Oracle Solaris offers superior virtualization, security, performance, ZFS features, and seamless Oracle integration, praised for stability and reliability.
Windows Server excels with Active Directory, Hyper-V, integration, security, and usability, making it ideal for enterprise solutions.
The operating system is lightweight, which makes it easier to use on an average computer compared to systems like Windows.
Technology Consultant at Clarinox Technologies Kenya
Additionally, regarding security, you do not have to implement any antivirus software.
SR AVP–Presales Cloud & Platform Management Services at Path Infotech ltd
Oracle introduced a GUI environment with Solaris 11.5.
Head Of IT at a financial services firm with 1,001-5,000 employees
I can manage the firewalls on the server easily, open or close ports to manage security traffic, and use encryption on the hard disk to keep data secure.
Systems technician. IT Office at LNU
FTP functionality does not require additional payment because Windows Server already includes the feature, reducing the costs of these tools.
Team Lead at Regnology
If you need to include an email server, you can't ask about features individually since all features are necessary.
Manager, IT Security at Averis Sdn Bhd
 

Categories and Ranking

Oracle Solaris
Ranking in Operating Systems (OS) for Business
17th
Average Rating
8.6
Reviews Sentiment
6.9
Number of Reviews
53
Ranking in other categories
No ranking in other categories
Windows Server
Ranking in Operating Systems (OS) for Business
4th
Average Rating
8.2
Reviews Sentiment
6.7
Number of Reviews
196
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Operating Systems (OS) for Business category, the mindshare of Oracle Solaris is 2.4%, up from 2.3% compared to the previous year. The mindshare of Windows Server is 7.5%, down from 9.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Operating Systems (OS) for Business Mindshare Distribution
ProductMindshare (%)
Windows Server7.5%
Oracle Solaris2.4%
Other90.1%
Operating Systems (OS) for Business
 

Featured Reviews

Shafiq Khan - PeerSpot reviewer
Head Of IT at a financial services firm with 1,001-5,000 employees
Long-term server platform has supported secure banking operations and simplified virtualization
Oracle Solaris is a very good operating system. Most of the time, we do not need to change or replace any configuration. If at any point in time we need to change something, it is really simple and a user-friendly environment. Although it is a CLI, Oracle introduced a GUI environment with Solaris 11.5. Currently, 11.5 has the operating system GUI as well as the CLI. The technical persons working on the operating system most of the time prefer to work on the CLI. It is actually really good and easy to use. As it is a server-level operating system, most of the time you do not need any extra features in the operating system because you are not using the operating system on home machines, desktops, or laptop machines. The extra features are not needed if we are talking about the enterprise level or an official operating system.
GS
Manager, Information & Cloud Systems at a consultancy with 1,001-5,000 employees
Long-standing experience improves reliability and security, making it a trusted platform
It's difficult to see improvements when using it daily. They improved compatibility with other platforms, such as Linux. One improvement I was thinking about some years ago was the ability to manage an on-premises server from Azure. Now, they have created Azure Arc, and we are using it as a very good way of managing on-premises servers. What can be improved is on the Azure side. With Active Directory on the server side and Entra ID on the Azure side in our hybrid environment, we find issues with data syncing to Entra ID. In Entra ID, Microsoft omitted some parameters. In Active Directory, you can put an expiring date to an account, but you cannot do that in Entra ID. We have other means of doing that, but it's common to have consultants working for six months, requiring account expiration or renewal processes. The Entra ID Connect syncing tool could be improved. Though they moved the service to Azure and use an agent instead of having a dedicated server, it remains cumbersome to set up due to the differences between Entra ID and Active Directory.
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Top Industries

By visitors reading reviews
Financial Services Firm
14%
Government
9%
Manufacturing Company
9%
Computer Software Company
7%
Comms Service Provider
11%
University
8%
Computer Software Company
7%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business21
Midsize Enterprise5
Large Enterprise32
By reviewers
Company SizeCount
Small Business78
Midsize Enterprise41
Large Enterprise89
 

Questions from the Community

How does Oracle Linux compare with Solaris?
When comparing Oracle Linux and Solaris, I believe that Linux is more secure and more flexible. It is also very suitable for enterprises that are already Oracle solution users. I found Linux to be ...
What do you like most about Oracle Solaris?
We use the solution as an internal operating system.
What is your experience regarding pricing and costs for Oracle Solaris?
I find the pricing of Oracle Solaris to be affordable compared to competitors like Windows.
What needs improvement with Windows Server?
I cannot answer regarding which metrics I use to measure the effectiveness of Microsoft Defender for IoT because I have to check with my technical team. I have been fulfilling a role as IT manager ...
What is your primary use case for Windows Server?
What suits me the most is that for all my OT environment, I can manage all those devices in one secure portal from Microsoft.
What is your experience regarding pricing and costs for Windows Server?
I think the licensing model of Microsoft products, including Windows Server, is not cheap. Microsoft has been guiding us for all the products toward a subscription model instead of a buying model. ...
 

Also Known As

Solaris 11, Solaris
No data available
 

Overview

 

Sample Customers

Siemens, IVV
Rakuten, Rackspace, Tyco
Find out what your peers are saying about Oracle Solaris vs. Windows Server and other solutions. Updated: April 2026.
892,868 professionals have used our research since 2012.