We performed a comparison between KVM and RHEV based on our users’ reviews in four categories. After reading the collected data, you can find our conclusion below.
Comparison Results: KVM wins out in this comparison. Users find it very fast and super easy to use and manage. It provides excellent security and scales easily. Many users feel RHEV is lacking in some documentation capabilities and security features and that it can be challenging to scale up when needed.
"I think nine out of the ten supercomputers in the world use Linux KVM, so I think that attests to the fact that it is a scalable product."
"I like that it's easy to manage. It's also more powerful when it comes to security than others. That point of view is the one consideration. The other consideration is that it's cost-effective."
"It is an easily scalable solution."
"The performance is great."
"If you are a Linux desktop user, KVM is the solution to go with if you have to start virtual machines with Linux or other operating systems with almost zero extra configuration needed."
"What I like most about KVM is that it's very easy to use. Everything is built-in, even when writing command lines."
"KVM has a rich options set which can be directly used or via wrappers, such as libvirt."
"There is a strong emphasis on availability, and they have numerous API interfaces for distributed storage and the solution is quite known for its openness."
"The solution is stable."
"It is a scalable solution."
"RHEV’s cost is much less compared to VMware."
"We find the ease of use of this solution to be invaluable. It is user-friendly and integrates well with other software."
"There aren't any bugs on the solution."
"Stability and speed are the most valuable aspects."
"This solution is very stable. Much more so than similar products."
"It is very stable."
"There are some issues with the graphics and some software that is very complex."
"I have previously used VMware and KVM is easier to use. However, they both have their strengths depending on their use cases. They are mostly equal. One of VMware's advantages is it has better support."
"Technical support is not top-notch."
"Some things are pretty basic, and they could be more robust with more detail."
"KVM is very difficult to manage and run on daily operations."
"Monitoring and resolution could be improved."
"The product must provide better performance monitoring features."
"Its resource usage can be improved."
"I heard that there are big differences between Red Hat eight and seven, but it's still quite difficult for me to judge it. I found it a bit more difficult to manage than version seven, which was much easier. In term of features, though, it is still not yet clear which is better. I have no clear idea of which features need to be changed at the moment."
"The solution could use network virtualization."
"When we do a direct comparison, then obviously VMware does better in terms of having Fault Tolerance and doing active disaster recovery and these kind of things. This is something that can be improved within Red Hat."
"The biggest improvement would be more third-party direct support for things like backups and provisioning through third-party portals."
"We'd like it if it would be possible on Red Hat Virtualization to possibly connect two or three VMs to the same disk."
"The solution should be made more user-friendly."
"RHEV can improve by keeping pace with new features and new enhancements. They should not be halted or delayed innovation because over the past quarter the enhancements have not been as fast as they have been previously."
"The Administration of the Oracle database and the SAP ERP needs improvement."
KVM is ranked 4th in Server Virtualization Software with 39 reviews while RHEV is ranked 10th in Server Virtualization Software with 32 reviews. KVM is rated 8.0, while RHEV is rated 7.6. The top reviewer of KVM writes "Delivers good performance because of kernel-based virtualization". On the other hand, the top reviewer of RHEV writes "Offers frameworks with well-documented API and easy to use". KVM is most compared with Proxmox VE, Oracle VM VirtualBox, Hyper-V, VMware vSphere and Citrix Hypervisor, whereas RHEV is most compared with VMware vSphere, Proxmox VE, Hyper-V, Oracle VM and Nutanix AHV Virtualization. See our KVM vs. RHEV report.
See our list of best Server Virtualization Software vendors.
We monitor all Server Virtualization Software reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.