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.
"It is an easily scalable solution."
"The most valuable feature of KVM is its stability."
"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 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."
"The initial setup was simple."
"It offers a high-availability environment."
"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."
"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."
"Red Hat is the most stable system."
"Stability and speed are the most valuable aspects."
"This solution is very stable. Much more so than similar products."
"The initial setup is fairly straightforward and well-documented. The process is very similar to its competitors. The success of your setup depends on how well you plan."
"The most valuable feature of this solution is the support portal."
"It is easy to deal with when comes to application migration and its compatibility with the multiple component applications."
"What they provide is way beyond the essential requirements of customers."
"The stability of this solution is less than other products in the same category."
"The virtual manager and the graphical QEMU for KVM need some improvement."
"The solution should be more user friendly. We are struggling with the command lines."
"I have encountered difficulties in getting the tool's documentation."
"The solution’s user interface could be improved and made more user-friendly."
"We are not getting good support from KVM, and it is not that user-friendly."
"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."
"KVM is very difficult to manage and run on daily operations."
"The solution has a very small lifecycle."
"With RHEV, the cyberattacks should be fewer. I want RHEV to be better protected."
"The solution could use network virtualization."
"We'd like it if it would be possible on Red Hat Virtualization to possibly connect two or three VMs to the same disk."
"While everything needs improvement in some way, I have no specifics."
"The support is tricky in a few places. We're facing some challenges within Malaysia where we don't really have the system integrators available who can provide extended support. When we need personnel on-site, we can't get them."
"The UI should be more interactive with additional features."
"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."
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.
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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.