Compare KVM vs. XenServer

KVM is ranked 3rd in Server Virtualization Software with 7 reviews while XenServer is ranked 8th in Server Virtualization Software with 7 reviews. KVM is rated 8.6, while XenServer is rated 8.0. The top reviewer of KVM writes "I find the density of the product most valuable". On the other hand, the top reviewer of XenServer writes "A simple virtualization solution that is free to try and deploy in a feature-limited version". KVM is most compared with Oracle VM VirtualBox, Hyper-V and VMware vSphere, whereas XenServer is most compared with Proxmox VE, KVM and Hyper-V. See our KVM vs. XenServer report.
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KVM Logo
Read 7 KVM reviews.
65,471 views|59,566 comparisons
XenServer Logo
30,795 views|27,821 comparisons
Most Helpful Review
Find out what your peers are saying about KVM vs. XenServer and other solutions. Updated: September 2019.
371,062 professionals have used our research since 2012.
Quotes From Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:

Pros
Scaling the solution is easy. You just have to add more hardware.Our production servers are running in Linux, and this solution supports that environment well.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 initial setup was simple.It is an open ecosystem, and we see there is a benefit in open-source solutions.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.KVM has a rich options set which can be directly used or via wrappers, such as libvirt.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.

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The compatibility of the solution is its most valuable feature. It's compatible on almost every cloud these days.The price is the solution's most valuable feature.This is a dependable solution for virtualization with a good community for product support.I find it very easy to manage and at a cost that small customers would never refuse (free).This solution allows the end users to clone, start, stop, or remotely control their VMs.We find there are good central maintenance and central management panels.

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Cons
The solution should be more user friendly. We are struggling with the command lines.Support for VF is needed, where you can, for example, export from VMware to KVM.The stability of this solution is less than other products in the same category.The KVM tech support is really bad. They are not very responsive.We would like to have a software lifecycle solution included in this solution. We can handle the software needed for KVM, but also the software that we provide. A lifecycle component would be very beneficial.Technical support is not top-notch.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.

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The solution should be more flexible and allow for greater customization.The manageability of the solution needs improvement. It's an extremely bad product to handle.Assigning the order of virtual server startup is not very easy and this can be improved.I would like the possibility of updating the hypervisor by applying security patches.The self-service user portal needs to be more granular and be more customizable.It needs improvement with the security features.

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Pricing and Cost Advice
This solution came with the Linux license.It is cheaper than other solutions out there on the market.It is cheaper than other competitors like VMware or Hyper-V.​It is free and can be run from your laptop, if needed, unlike VMware.​

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There are free and paid versions. The free version is limited in features but not by time limit. The paid version has more features.The most valuable feature is the cost; it is a free product.To subscribe to the paid version with support, it is approximately $6,000 per year.The pricing and licensing is so important. Customers do consider the price seriously.

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report
Use our free recommendation engine to learn which Server Virtualization Software solutions are best for your needs.
371,062 professionals have used our research since 2012.
Ranking
Views
65,471
Comparisons
59,566
Reviews
5
Average Words per Review
286
Avg. Rating
8.6
Views
30,795
Comparisons
27,821
Reviews
4
Average Words per Review
307
Avg. Rating
9.5
Top Comparisons
Compared 32% of the time.
Compared 23% of the time.
Compared 17% of the time.
Compared 53% of the time.
Compared 18% of the time.
Compared 9% of the time.
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KVM
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Citrix
Overview
KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel.ko or kvm-amd.ko.

Citrix XenServer is an open source virtualization platform that manages server, desktop and cloud virtual infrastructures. XenServer is straightforward and quick to install. Even the most demanding workloads and automated management processes can take just a couple of minutes to virtualize. XenServer lowers IT costs and increases IT agility and flexibility.

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Sample Customers
MediaWiki, Wikimedia Foundation, Wikipedia, Wikivoyage, Wikidata, Wikiversity, Commons U.S. Army Shared Services Center, SoftLayer, Educational Services of America, Independent Bank, and SK Telecom.
Top Industries
VISITORS READING REVIEWS
Software R&D Company34%
Comms Service Provider20%
Media Company9%
Government6%
REVIEWERS
Healthcare Company13%
Non Tech Company13%
Energy/Utilities Company13%
University7%
VISITORS READING REVIEWS
Software R&D Company18%
Comms Service Provider17%
Financial Services Firm11%
Government8%
Find out what your peers are saying about KVM vs. XenServer and other solutions. Updated: September 2019.
371,062 professionals have used our research since 2012.
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.
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