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.
"Very cost-effective."
"The initial setup was simple."
"Our production servers are running in Linux, and this solution supports that environment well."
"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."
"It is an open ecosystem, and we see there is a benefit in open-source solutions."
"Documentation and problem-solving troubleshooting are the most valuable features. Performance (when fine-tuned and with "special" HW) is awesome, equal to or more than other enterprise closed-source solutions."
"It is an easily scalable solution."
"KVM has a rich options set which can be directly used or via wrappers, such as libvirt."
"It is easy to deal with when comes to application migration and its compatibility with the multiple component applications."
"RHEV’s cost is much less compared to VMware."
"The most valuable feature of Red Hat Enterprise Virtualization is its pricing."
"I can control and manage everything. I know everything that's cooking inside. This is the best part for me."
"The solution has a good licensing module."
"Technically, the main reason why I'm using Red Hat is because of its stability."
"It's a scalable solution."
"It is very stable."
"The virtual manager and the graphical QEMU for KVM need some improvement."
"The initial setup of this solution is more difficult than some of the competing products and it could be improved."
"I have encountered difficulties in getting the tool's documentation."
"Support for VF is needed, where you can, for example, export from VMware to KVM."
"Some things are pretty basic, and they could be more robust with more detail."
"Monitoring and resolution could be improved."
"I would like to see more focus on microservices and integration with Kubernetes or OpenShift."
"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."
"We would like the dashboard feature of this solution to be improved, as it is not very detailed at present."
"Red Hat by itself is not scalable. But you can have third party add-ons like Ceph to make it massively scalable."
"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 UI should be more interactive with additional features."
"The availability of technical expertise with the solution may be limited in some areas."
"A few features of the product do not work as well as those in VMware."
"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."
"It would be better to have more patches, especially kernel-level updates, live and online so that we can keep the business up and running during this period."
KVM is ranked 4th in Server Virtualization Software with 38 reviews while RHEV is ranked 10th in Server Virtualization Software with 31 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 "The solution is scalable and affordable, but it lacks features, and it is not easy to manage". 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.