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 valuable feature is hypervisor. I can host at the same time different operating systems in Linux Windows."
"I have found KVM to be scalable."
"KVM is stable."
"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 open ecosystem, and we see there is a benefit in open-source solutions."
"If you prefer command-line, there are all kinds of command-line options."
"The GUI interface makes the management of KVM easier than ever before."
"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."
"Red Hat is the most stable system."
"Stability and speed are the most valuable aspects."
"The price is the solution's most valuable aspect. It's much cheaper than, for example, VMware."
"We find the ease of use of this solution to be invaluable. It is user-friendly and integrates well with other software."
"One of the most valuable features of this solution is the popularity of the OS."
"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."
"It's a scalable solution."
"The solution is overall very good with all the facilities. It is user friendly, easy to configure, has documentation, and support is available."
"Some things are pretty basic, and they could be more robust with more detail."
"The main drawback in the solution is probably disaster recovery."
"The networking with wireless devices needs improvement."
"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."
"The virtual manager and the graphical QEMU for KVM need some improvement."
"The KVM tech support is really bad. They are not very responsive."
"We are not getting good support from KVM, and it is not that user-friendly."
"One problem I have is that it's not very scalable when it comes to resizing the VM disk dimensions. For example, if you have initially set a virtual drive to 10 GB and you want to upgrade it to 15 GB, it's not that easy."
"Configuring the network interfaces is much better in Ubuntu and should be improved."
"The documentation is not as good as it should be."
"The availability of technical expertise with the solution may be limited in some areas."
"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."
"Specifically, enhancements in managing virtual machine migrations, cloning, and the creation of different VMs could further optimize its functionality."
"With RHEV, the cyberattacks should be fewer. I want RHEV to be better protected."
"The UI should be more interactive with additional features."
KVM is ranked 4th in Server Virtualization Software with 39 reviews while RHEV is ranked 10th in Server Virtualization Software with 33 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.