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 simple."
"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."
"If you prefer command-line, there are all kinds of command-line options."
"Our production servers are running in Linux, and this solution supports that environment well."
"The most valuable feature is hypervisor. I can host at the same time different operating systems in Linux Windows."
"This solution is open source and easy to configure."
"The initial setup was very easy."
"One of the best features of KVM is its user-friendly interface."
"The solution is a great all-round product. The virtualization is especially good."
"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 solution makes migration easy."
"I can control and manage everything. I know everything that's cooking inside. This is the best part for me."
"It is easy to deal with when comes to application migration and its compatibility with the multiple component applications."
"The most valuable feature of Red Hat Enterprise Virtualization is its pricing."
"RHEV’s cost is much less compared to VMware."
"The solution should be more user friendly. We are struggling with the command lines."
"In our setup, we do not have any dashboards or orchestration, and it is hard to manage. We have 25 gig network cards, but the software driver we have only supported 10 gigs."
"Its resource usage can be improved."
"The stability of this solution is less than other products in the same category."
"The grid interface of KVM needs improvement. It could be more beautiful, especially when compared to VMware."
"Technical support is not top-notch."
"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."
"Monitoring and resolution could be improved."
"The availability of technical expertise with the solution may be limited in some areas."
"A few features of the product do not work as well as those in VMware."
"While everything needs improvement in some way, I have no specifics."
"There is not any proper documentation on the site to reference."
"Red Hat by itself is not scalable. But you can have third party add-ons like Ceph to make it massively scalable."
"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."
"It lags behind in that you need to go to something like Fedora to get all the extra bells and whistles."
"We'd like it if it would be possible on Red Hat Virtualization to possibly connect two or three VMs to the same disk."
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.