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 initial setup was very easy."
"Very cost-effective."
"The product's scalability is good...It's a very stable product."
"There is a strong emphasis on availability, and they have numerous API interfaces for distributed storage and the solution is quite known for its openness."
"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."
"Scaling the solution is easy. You just have to add more hardware."
"The most valuable feature of KVM is its stability."
"The performance is great."
"The solution is stable."
"This solution is very stable. Much more so than similar products."
"I can control and manage everything. I know everything that's cooking inside. This is the best part for me."
"The most valuable feature of this solution is the support portal."
"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 is a scalable solution."
"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."
"It's a scalable solution."
"Support for VF is needed, where you can, for example, export from VMware to KVM."
"We are not getting good support from KVM, and it is not that user-friendly."
"The solution’s user interface could be improved and made more 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."
"The main drawback in the solution is probably disaster recovery."
"Its resource usage can be improved."
"The networking with wireless devices needs improvement."
"The grid interface of KVM needs improvement. It could be more beautiful, especially when compared to VMware."
"I heard that there are big differences between Red Hat eight and seven, but it's still quite difficult for me to judge it. I found it a bit more difficult to manage than version seven, which was much easier. In term of features, though, it is still not yet clear which is better. I have no clear idea of which features need to be changed at the moment."
"Red Hat by itself is not scalable. But you can have third party add-ons like Ceph to make it massively scalable."
"The UI should be more interactive with additional features."
"The solution could use network virtualization."
"When we do a direct comparison, then obviously VMware does better in terms of having Fault Tolerance and doing active disaster recovery and these kind of things. This is something that can be improved within Red Hat."
"Customers are not aware of this solution, they can improve by providing more awareness and solution availability."
"We would like the dashboard feature of this solution to be improved, as it is not very detailed at present."
"The biggest improvement would be more third-party direct support for things like backups and provisioning through third-party portals."
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.