Proxmox VE vs. XenServer

Proxmox VE is ranked 6th in Server Virtualization Software with 3 reviews vs XenServer which is ranked 7th in Server Virtualization Software with 2 reviews. The top reviewer of Proxmox VE writes "Switched from Citrix XEN and EMC VMWare: No downtime when node needs service but web interface could be simplified". The top reviewer of XenServer writes "Most people know VMWare and Hyper-V. XenServer fits right in the middle". Proxmox VE is most compared with XenServer, vSphere and Hyper-V. XenServer is most compared with Proxmox VE, KVM and Hyper-V. See our Proxmox VE vs. XenServer report.
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40,593 views|26,440 comparisons
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Quotes From Members

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

It is easier to balance loads across hypervisors if a given container or virtual machine uses more resources than its peers.We now have the ability to quickly build and deploy VM desktops for application testing with the snapshot ability to rollback, as required.Saves a lot of time compared to imaging physical desktops.The template option allows us to build a desktop in a VM, then quickly deploy as a linked clone.

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We find there are good central maintenance and central management panels.

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It would be nice to have total CPU and RAM allocations show for all VMs/CTs to avoid overloading an individual hypervisor.Separate physical network for Corosync/Heartbeat should be emphasized in the Quick Start or Getting Started documentation.Some of the more advanced features and options required for setup still need to use the console and hand edit config files.

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It needs improvement with the security features.

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Pricing and Cost Advice
An excellent choice for budget sensitive operations.​The cost is excellent.

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The pricing and licensing is so important. Customers do consider the price seriously.

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Answers from the Community
Rhea Rapps
Fábio RabeloReal User

My 5 cents : Go with Proxmox .
It is NOT just a wrapper for KVM, it has a lot of features that are not present in plain KVM .
It is extremely easy to set it up, you can have a 16 node cluster up and running in a single day of work !
Everything you need to manage your storage space, whatever it is, shared or centralized, CEPH, DRBD, iSCSI, NFS, ZFS or any other File System supported by Linux .
You even have some VDI oriented features .
The web interface are straightforward and very intuitive .
All of it with less than a half of the cost of XEN ( or a mere fraction of the cost of VMWare or HyperV )
I am using it for 10 years or so, since 2.2 version .
And, you can try it without any cost or vendor support, just download the image and install, use it for a month, if you thing that Proxmox do not have all the features you need, then go to something else. it won't hurt your budget .

07 March 18

It's easy, with the new version of XenServer you lose several features that you will need on production:
Use Proxmox VE. :)

15 March 18

I'm afraid that I cannot say anything about XenServer, but we are using Proxmox ourselves and at a customer site. Both installations are rather small (6 and 3 nodes), based upon version 4 and 5. We are very happy with the systems: reliable, performant and extremely easy to use. For cost reasons, we are using the Proxmox nodes also for the CEPH cluster, which may not be an optimal solution - but it works very well. The only drawback is that we decided to choose hard disks instead of SSDs; this way the I/O performance is not as good as with a native system, but it's sufficient.

From our point of view, we would go for Proxmox again, and we actually plan to build two more clusters - but as I said, I cannot compare.

08 March 18

I've used vSphere, KVM, Proxmox and Hyper-V. I have to say I like KVM the best because it is immensely customizable, updates move fast (or as slow as you want - just config your repositories appropriately), is dead-easy to configure using libvirt, can use any file system available to Linux (I use ZFS, but have also had good results with XFS), etc. Has a learning curve if you're new to Linux but it's entirely worth it. I hate vendor lock-in and proprietary software, it always comes back to bite you in the end. vSphere is the worst regarding vendor lock-in, Hyper-V second, Proxmox third. Haven't used Xenserver, but I imagine it has similar issues. Learn how to configure Linux - the skills are transferable and the possibilities are limitless.

07 March 18
Juan DominguezConsultant

I appreciate you reaching out to me on this. I, unfortunately, have not installed, tested or see Proxmox VE. I have performed many deployments of XenServer using both iSCSI and FC. The XenServer product is easy to manage and install and will provide more mainstream support. Meaning, if there is an issue with an aspect within the deployment, you will most likely be more able to find support through the communities, blogs and Citrix documentation than you will for the other product.

There is a larger corpus of XenServer deployments in my estimation than there is for the Proxmox VE product. I would suggest the engineer below does their due diligence and installs the products in a lab environment. Then perform a bake-off of sorts. This will enable them to gain further insight to the capabilities, drawbacks and sometimes incompatibilities that they may not have been aware of.

XenServer supports lots of hardware, it is secure, easy to deploy, manage and operate. It has many similar features to VMware, but it also lends itself well to existing Citrix XenApp and XenDesktop environments already in production to facilitate a few more feature add-ons and performance enhancements. XenServer is a good product, it just lags behind the other major player Hyper-V and VMware due to a lack of marketing in my opinion.

I hope this helps and good luck.

06 March 18
Avg. Rating
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Top Comparisons
Compared 34% of the time.
Compared 20% of the time.
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Compared 43% of the time.
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Compared 12% of the time.

Proxmox VE is a complete virtualization management solution for servers.

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.

Learn more about Proxmox VE
Learn more about XenServer
Sample Customers
Municipality of Trento, SwitchMIA, inDenova, Valmeita City Council, Alpha IT AS, Grupo Inversor Veracruzano S.A.P.I. de C.V. (GRIVER), Laut und Schoen, IT-Services - Hamburg e.K., KMI Learning, Dynacom Tankers Management Ltd., Serwise AG U.S. Army Shared Services Center, SoftLayer, Educational Services of America, Independent Bank, and SK Telecom.
Top Industries
Comms Service Provider13%
Financial Services Firm9%
Media Company7%
Energy/Utilities Company9%
Non Tech Company9%
Comms Service Provider9%
Financial Services Firm16%
Comms Service Provider16%
Transportation Company7%
Company Size
Small Business67%
Midsize Enterprise11%
Large Enterprise22%
Small Business20%
Midsize Enterprise28%
Large Enterprise52%
Small Business54%
Midsize Enterprise31%
Large Enterprise15%
Small Business27%
Midsize Enterprise33%
Large Enterprise39%
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