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.
"If you are a Linux desktop user, KVM is the solution to go with if you have to start virtual machines with Linux or other operating systems with almost zero extra configuration needed."
"I have found KVM to be scalable."
"KVM has a rich options set which can be directly used or via wrappers, such as libvirt."
"The most valuable feature of KVM is its stability."
"The product is really good...One can get good performance because of kernel-based virtualization."
"This solution is open source and easy to configure."
"It is an easily scalable solution."
"Our production servers are running in Linux, and this solution supports that environment well."
"Red Hat is the most stable system."
"The solution is stable."
"It is very stable."
"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."
"There aren't any bugs on the solution."
"What they provide is way beyond the essential requirements of customers."
"The solution is overall very good with all the facilities. It is user friendly, easy to configure, has documentation, and support is available."
"The most valuable feature of this solution is the support portal."
"The virtual manager and the graphical QEMU for KVM need some improvement."
"The speed is around thirty percent slower than another competitor. This would be something to work on."
"In KVM, snapshots and cloning are areas where there could be a little more sophistication, like VMware."
"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."
"Some things are pretty basic, and they could be more robust with more detail."
"Support for VF is needed, where you can, for example, export from VMware to KVM."
"I have encountered difficulties in getting the tool's documentation."
"The stability of this solution is less than other products in the same category."
"We would like the dashboard feature of this solution to be improved, as it is not very detailed at present."
"Customers are not aware of this solution, they can improve by providing more awareness and solution availability."
"This solution could be more secure."
"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."
"The availability of technical expertise with the solution may be limited in some areas."
"The Administration of the Oracle database and the SAP ERP needs improvement."
"While everything needs improvement in some way, I have no specifics."
"The solution has a very small lifecycle."
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.