VMware vSphere vs. XenServer

Overview
ProductRatingMost Used ByProduct SummaryStarting Price
VMware vSphere
Score 8.4 out of 10
N/A
An enterprise workload platform, vSphere is used to improve the performance for a data center. It is used to boost operational efficiency, supercharge workload performance, and accelerate innovation.
$995
per year
XenServer
Score 7.0 out of 10
N/A
XenServer (formerly Citrix Hypervisor) is a virtualization management platform optimized for application, desktop and server virtualization infrastructures.N/A
Pricing
VMware vSphereXenServer
Editions & Modules
Standard
$995.00
per year
Enterprise
$3,995.00
per year
No answers on this topic
Offerings
Pricing Offerings
VMware vSphereXenServer
Free Trial
NoNo
Free/Freemium Version
NoNo
Premium Consulting/Integration Services
NoNo
Entry-level Setup FeeNo setup feeNo setup fee
Additional Details
More Pricing Information
Community Pulse
VMware vSphereXenServer
Features
VMware vSphereXenServer
Server Virtualization
Comparison of Server Virtualization features of Product A and Product B
VMware vSphere
7.2
Ratings
12% below category average
XenServer
7.6
Ratings
7% below category average
Virtual machine automated provisioning7.00 Ratings7.00 Ratings
Management console7.00 Ratings7.00 Ratings
Live virtual machine backup6.00 Ratings8.00 Ratings
Live virtual machine migration8.00 Ratings8.00 Ratings
Hypervisor-level security8.00 Ratings8.00 Ratings
Best Alternatives
VMware vSphereXenServer
Small Businesses
DigitalOcean Droplets
DigitalOcean Droplets
Score 8.7 out of 10
DigitalOcean Droplets
DigitalOcean Droplets
Score 8.7 out of 10
Medium-sized Companies
VMware vSOM (discontinued)
VMware vSOM (discontinued)
Score 10.0 out of 10
VMware vSOM (discontinued)
VMware vSOM (discontinued)
Score 10.0 out of 10
Enterprises
VMware vSOM (discontinued)
VMware vSOM (discontinued)
Score 10.0 out of 10
VMware vSOM (discontinued)
VMware vSOM (discontinued)
Score 10.0 out of 10
All AlternativesView all alternativesView all alternatives
User Ratings
VMware vSphereXenServer
Likelihood to Recommend
7.0
(0 ratings)
7.0
(0 ratings)
Likelihood to Renew
7.0
(0 ratings)
10.0
(0 ratings)
Usability
8.0
(0 ratings)
7.0
(0 ratings)
Availability
-
(0 ratings)
5.5
(0 ratings)
Performance
-
(0 ratings)
6.4
(0 ratings)
Support Rating
8.0
(0 ratings)
6.4
(0 ratings)
In-Person Training
-
(0 ratings)
2.7
(0 ratings)
Implementation Rating
9.0
(0 ratings)
7.3
(0 ratings)
Configurability
-
(0 ratings)
5.5
(0 ratings)
Ease of integration
-
(0 ratings)
5.5
(0 ratings)
Product Scalability
-
(0 ratings)
6.4
(0 ratings)
Vendor post-sale
-
(0 ratings)
8.2
(0 ratings)
Vendor pre-sale
-
(0 ratings)
8.2
(0 ratings)
User Testimonials
VMware vSphereXenServer
Likelihood to Recommend
vSphere is well suited for multiple VMWare hosts and can be very useful in larger enterprises where vMotion is used to load balance and failover running virtual machines. In smaller businesses with one or two hosts then the features can be overkill. The addition of virtual TPM support is a very nice addition to provide vm security in a more Microsoft supported methodology.
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It can be really helpful & useful if we are using Citrix Hypervisor with other provisioning tools. Here are some specific scenarios where Citrix Hypervisor (formerly Citrix XenServer) is well-suited: Server Consolidation, Virtual Desktops, Disaster Recovery, Development & Testing Environments. On the other hand, there are some scenarios where Citrix Hypervisor may be less appropriate: Small-scale Deployments, Highly Heterogeneous Environments, and Limited Virtualization Requirements.
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Pros
  • Taking Snapshots of VMs and roll back to the previous state when faced with a problem.
  • Template creation - Once you have that perfect template you can easily create new VMs. Very useful feature.
  • VMotion - Being able to perform live migrations of a virtual machine from one physical server to another, without any downtime.
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  • Creating VMS - virtualizing physical or already virtual images is a snap
  • Configuration - in a smaller environment, configuration is simple and easy to understand
  • Templates and Clones - the ability to create these on the fly make it great for a dev environment
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Cons
  • Allow enable EVC without requiring host shutdown
  • More detail in recent tasks. Instead of just showing a task called "Reconfigure virtual machine" also have a link to more detailed information as to what was reconfigured, changed or removed.
  • Allow searching tasks or events
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  • Although part of this is free the free solution has limitations that make the purchase of the paid version a requirement for most medium and large enterprises.
  • Support for USB devices is lacking vs. its competitors.
  • Technical support is somewhat limited especially the free "Google browsing" type since the product is used much less vs. Hyper-V or VMWARE.
  • In a related issue to tech support, finding local IT support who have used the product is also challenging.
  • Networking/virtual networks are less stable than they should be.
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Likelihood to Renew
We are constantly looking for change that will benefit our company. We are not ones to stick with a product simply because it is what we know, but rather looking for what fits us best. We can't imagine another product on the market today doing a better job of handling our infrastructure than vSphere.
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With the knowledge and usage of solutions from VMware and Microsoft offering more compelling cloud integrated options it makes it more compelling in many environments which I consult. XenServer is a good product and fits the bill in many smaller environments but as clients look to the cloud or a hybrid cloud it can in some cases make it a bit more difficult.
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Usability
Very useful for environments where space and energy consumption are issues and management is not very keen on upfront spending on hardware every time whenever requirement comes from any dept for provisioning a machine for their occasional use, easily can be done in case of VMware vSphere in few clicks. Backup, security, monitoring and management everything is covered but at additional cost.
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XenServer is a good product in its use and probably free if you have the right Citrix licenses already. However, it does require specific knowledge to manage, which makes it harder to manage if you don't have that knowledge in house.
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Reliability and Availability
No answers on this topic
It's been a little problematic in the past at larger VDI deployments requiring a bit more care and feeding than other vendors. But the latest releases (6.5.x) have brought about huge improvements in the stability and availability.
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Performance
No answers on this topic
When running like a top XenServer is a fantastic hypervisor. There is relatively low overhead on the Dom0 so workloads get the most of the resources.
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Support Rating
I rarely ever have to contact support and when I do need to resolve an issue, there is always an abundance of kb articles and research information available that can help quickly resolve the issue. Depending on the type of support contract you have, you may get support from some offshore group in another country and this could be a little challenging because of the language barrier.
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The staff I've worked with are very knowledgeable or able to get a very well articulated and capable support team member on the phone or helping them if necessary and they always want to ensure the best experience possible for you on the platform. The ability for the support team to reach out to hardware vendors for assistance is a nice plus too.
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In-Person Training
No answers on this topic
Part of a training for certification to become a trainer for Citrix included an in-person training with a Master CCI. The XenServer training at this time was pretty simplified due to the product primarily being installed however you did have to work with it and mildly configure the system.
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Online Training
No answers on this topic
Haven't given it a real go with any online training however there are some options out there. I have taught a course following Citrix material for XenDesktop which leverages XenServer and it is pre-built so not the best for XenServer specifically for installation but configuration is mildly touched on
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Implementation Rating
Just make sure that when you implement, that the person implementing truly knows what they are doing and has a plan of action coming in. Since our initial implementation using a consulting service, I have implemented a few vSphere just from what I learned at the initial implementation and use over time, and the person implementing really needs to know what they are doing or you will miss out on features that may help you down the line
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Ensure you review the HCL (hardware compatibility list) and reach out to the hardware vendors to ensure they support the platform and in case they have documentation that can be followed for the implementation. Also ensure the prerequisites are completed prior to implementation so that as few unexpected delays occur as you can control.
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Alternatives Considered
vSphere provides more control over the Virtualization environment.
It allows users to have great management User Interface with lots of dynamic features.
VM creation.
Perform vMotion.
Network Management.
Datastore Mangement.
Cluster Management.
Schedule tasks.
Affinity and anti-affinity rules.
Easy to upgrade.
Backup the configuration data which can be restore after a disaster.
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In the scheme of the real world, Citrix Hypervisor is used much less than the other two main competing products; MS Hyper-V and VMWare vSphere. So, choosing Citrix Hypervisor for your organization comes down to whether you are comfortable going with a lesser-used product. All 3 products offer hardware layered hypervisor installation which means no OS overhead headaches. That is usually positive but in some cases, with very small shops, the OS layer is needed to host other workloads so Hyper-V running on Windows is the better choice. We run both MS Hyper-V and Citrix Hypervisor and we chose the Citrix product for our testbed environment since any risk of running the less public supported product was lessened by not being in full production.
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Scalability
No answers on this topic
The servers latest versions have made massive improvements to scalability. But from past experience there have been issues when running workloads for extended periods of time without reboot on the hosts. I would need to run similar workloads on the 6.5 release which has changed much of the bottlenecks or issues so I'd imagine its far more capable now, Perhaps able to stand near the best in the market.
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Return on Investment
  • Having vSphere helped my business quickly recover from a ransomware attack which would have crippled us for weeks if we were not virtualized. I think the ROI on something like that is immeasurable.
  • vSphere has allowed my company to purchase bigger server hardware to host 3 or 4 virtual servers, which was at a cost much lower than buying 3 or 4 server hardware boxes, saving us thousands each time we need to upgrade hardware.
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  • Xenserver is easy to learn. We paid for support only for installation and deployment in the first three years, and now our team has the knowledge to solve most problems.
  • Low CAPEX if you have a team that uses open source software day by day.
  • But paid support is necessary to solve critical problems. The open source community is not enough. Actually, we have difficulty solving some bugs without paying for support.
  • Medium OPEX if you have a team that uses open source software day by day.
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