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 product is really good...One can get good performance because of kernel-based virtualization."
"I like that this is an open-source solution. It is very powerful, and it's easy."
"It is an open ecosystem, and we see there is a benefit in open-source solutions."
"The product's scalability is good...It's a very stable product."
"It is easy to use, stable, and flexible. It is a pretty mature product, and it is faster than VirtualBox."
"I find the density of the product most valuable. It is density that a technologist can just assign page merging. This is what makes KVM one of the important players of the virtualization market."
"The most valuable feature is hypervisor. I can host at the same time different operating systems in Linux Windows."
"It offers a high-availability environment."
"The most valuable feature of Red Hat Enterprise Virtualization is its pricing."
"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."
"RHEV’s cost is much less compared to VMware."
"The solution is stable."
"It is a stable solution...It is a scalable solution."
"There aren't any bugs on the solution."
"Technically, the main reason why I'm using Red Hat is because of its stability."
"Monitoring and resolution could be improved."
"The networking with wireless devices needs improvement."
"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."
"In KVM, snapshots and cloning are areas where there could be a little more sophistication, like VMware."
"The stability of this solution is less than other products in the same category."
"The only negative aspect of needing hardware support is a fully functional KVM can be dropped. It would be nice if the support for other platforms, like ARM or Risk, were as good as the x86 one. However, with the democratization of Chromebooks based on these chips and mobile devices, it will not take long for that to happen."
"One thing that maybe could be improved is making it easier to scale. It needs to be more clear on how to scale the storage space for virtual machines."
"Support for VF is needed, where you can, for example, export from VMware to KVM."
"The UI should be more interactive with additional features."
"The Administration of the Oracle database and the SAP ERP needs improvement."
"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."
"Configuring the network interfaces is much better in Ubuntu and should be improved."
"With RHEV, the cyberattacks should be fewer. I want RHEV to be better protected."
"Red Hat by itself is not scalable. But you can have third party add-ons like Ceph to make it massively scalable."
"While everything needs improvement in some way, I have no specifics."
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.