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.
"The most helpful aspect of KVM is the fact that the interface is so minimal. It includes just what you need to set up the VMs and manage them, and it's very simple to do so."
"I have found KVM to be scalable."
"The product is really good...One can get good performance because of kernel-based virtualization."
"I appreciate the network passcode feature in KVM, as it provides a convenient way to manage DNS and cloud hosting."
"The tool's most valuable feature is backup. The product makes it easy to manage virtual machines. Other tools require third-party applications like VMware and vSphere. However, KVM doesn't require these applications."
"The product's scalability is good...It's a very stable product."
"I like that this is an open-source solution. It is very powerful, and it's easy."
"The most valuable feature is hypervisor. I can host at the same time different operating systems in Linux Windows."
"It's a scalable solution."
"Customers are moving to open source and Red Hat is the leader in this particular space. I think customers feel more confident running Red Hat Virtualization than VMware."
"RHEV’s cost is much less compared to VMware."
"It is very stable."
"This solution is very stable. Much more so than similar products."
"Stability and speed are the most valuable aspects."
"The solution has a good licensing module."
"What they provide is way beyond the essential requirements of customers."
"The grid interface of KVM needs improvement. It could be more beautiful, especially when compared to VMware."
"Some things are pretty basic, and they could be more robust with more detail."
"Support for VF is needed, where you can, for example, export from VMware to KVM."
"The networking with wireless devices needs improvement."
"There are some issues with the graphics and some software that is very complex."
"The KVM tech support is really bad. They are not very responsive."
"The stability of this solution is less than other products in the same category."
"Technical support is not top-notch."
"There is not any proper documentation on the site to reference."
"The solution could use network virtualization."
"A few features of the product do not work as well as those in VMware."
"This solution could be more secure."
"Red Hat by itself is not scalable. But you can have third party add-ons like Ceph to make it massively scalable."
"The documentation is not as good as it should be."
"We hope that Red Hat can produce a paradigm edition. We are looking for paradigm computing and paradigm storage. Its scalability can be improved. It is not easy to scale, and we hope that Red Hat can provide a more scalable system. They should also provide local service and support. Our customers are looking for a good software vendor to provide professional services."
"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."
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.