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 appreciate the network passcode feature in KVM, as it provides a convenient way to manage DNS and cloud hosting."
"The initial setup was simple."
"The product is really good...One can get good performance because of kernel-based virtualization."
"This solution is open source and easy to configure."
"One of the best features of KVM is its user-friendly interface."
"I find the density of the product most valuable. It is density that a technologist can just assign page merging. This is what makes KVM one of the important players of the virtualization market."
"The product's scalability is good...It's a very stable product."
"RHEV’s cost is much less compared to VMware."
"It is a scalable solution."
"We find the ease of use of this solution to be invaluable. It is user-friendly and integrates well with other software."
"It is a stable solution...It is a scalable solution."
"The solution is stable."
"What they provide is way beyond the essential requirements of customers."
"The solution has a good licensing module."
"The solution makes migration easy."
"There are some issues with the graphics and some software that is very complex."
"I have encountered difficulties in getting the tool's documentation."
"The stability of this solution is less than other products in the same category."
"One thing that maybe could be improved is making it easier to scale. It needs to be more clear on how to scale the storage space for virtual machines."
"The initial setup of this solution is more difficult than some of the competing products and it could be improved."
"Technical support could be better. In the next release, I would like to see an improved user interface and dashboard. This type of improvement will make it easy or help our engineers understand the solution from a requirement point of view."
"The solution’s user interface could be improved and made more user-friendly."
"Its resource usage can be improved."
"In comparison to VMware, this solution isn't as stable. We're testing it right now, and we're not trusting the stability of the product."
"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."
"Red Hat by itself is not scalable. But you can have third party add-ons like Ceph to make it massively scalable."
"We would like the dashboard feature of this solution to be improved, as it is not very detailed at present."
"It lags behind in that you need to go to something like Fedora to get all the extra bells and whistles."
"The documentation is not as good as it should be."
"Customers are not aware of this solution, they can improve by providing more awareness and solution availability."
"There is not any proper documentation on the site to reference."
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.