VMware vSAN is an enterprise-class storage virtualization software that provides a simple path to hyperconverged infrastructure (HCI) and multi cloud. VMware vSAN is no longer sold as a standalone product and is now available as a part of VMware Cloud Foundation.
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XenServer
Score 7.0 out of 10
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XenServer (formerly Citrix Hypervisor) is a virtualization management platform optimized for application, desktop and server virtualization infrastructures.
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Pricing
VMware vSAN
XenServer
Editions & Modules
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Offerings
Pricing Offerings
VMware vSAN
XenServer
Free Trial
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Free/Freemium Version
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No
Premium Consulting/Integration Services
No
No
Entry-level Setup Fee
No setup fee
No setup fee
Additional Details
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More Pricing Information
Community Pulse
VMware vSAN
XenServer
Features
VMware vSAN
XenServer
Server Virtualization
Comparison of Server Virtualization features of Product A and Product B
vSAN is well suited for any application that can run in Virtual Environment. vSAN serves better for VDI, NSX, and vSphere on Cloud solutions. vSAN is a good fit for small and medium business companies. vSAN can't be a good solution where you have Oracle Solaris or IBM power systems. vSAN can't provide storage space using FCP protocol.
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.
VMware runs VSAN certification programs to make sure the OEM sells validated nodes. It helps customers to select appropriate certified ready nodes like Lenovo ThinkAgile VX which comes factory configured and easy to set up.
Hyperconverged solutions reduce real estate space and networking costs when compare with shared storage. The host overhead also less.
Supports All-Flash (SATA and NVMe SSDs) and Hybrid vSAN with HDD and SSD. So customers can choose cost-effective solutions appropriate to their workloads.
Supports different storage policies, RAID and duplication, and compression features and it makes a complete storage solution.
It would be nice to have fabric-based storage acceptance to disaggregate storage and expand beyond the node concept. The assumption that increased storage needs require increased compute or ram is simply not true.
The licensing costs are high but you do get what you pay for.
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.
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.
Deploying and configuring VSAN is a relatively simple process for people that are already used to working in virtual environments, primarily for those that are familiar with vSphere. The compatibility of those two products is amazing. You shouldn't really encounter any issues and if you do, you surely did something wrong.
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.
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.
Support is (as always forVMware) top notch and easy to work with. The majority of computer companies are outsourcing their tech staff, and it seems they do as well. But their guys know the product well and are quick to respond to your ticket (if the severity is right!).
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.
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.
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
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.
VMWare stand out compared to all the products. However, it is worthwhile mentioning the following products can be used to achive similar results. Hitachi Virtual Storage Systems Nutanix Cloud Infrastrucure. In case if we are using Nuatinux at the Hypervisor level then it would be recommended to use their very own product for storage virtulization even though the vendors say that all their products are cross platform supportable. However, during tests we have found high performance when using same products accross virtualization.
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.
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.
The ROI for VMware vSAN seems very positive. We have yet to need to upgrade since we put it in a few years ago, but without the heavy cost of dedicated storage, we have already seen reduced hardware maintenance costs and reduced management time spent.
With the cost of dedicated storage and its separate maintenance costs, all this is rolled back into the hosts. The hosts cost more with drives in them, but not near as much as the separate dedicated storage did.
Before VMware vSAN, you had hosts and storage devices aging out, running out of capacity, or underperforming. With vSAN you only have to worry about the hosts.
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.
