Citrix DaaS (formerly Citrix Virtual Apps and Desktops, or XenDesktop) is a virtual desktop infrastructure (VDI) and application virtualization solution from Citrix.
$375
XenServer
Score 8.2 out of 10
N/A
XenServer (formerly Citrix Hypervisor) is a virtualization management platform optimized for application, desktop and server virtualization infrastructures.
XenServer like the similar product I've used in the hypervisor market stacks up well in regards to compatibility with virtual machine [operating systems]. It is also capable of allowing for large, powerful VMs to be run upon it. The main selection of XenServer in environments …
DaaS is ideal in large-scale environments that require centralized, secure management. Remote workforces at large organizations. Highly regulated industries like finance. It allows for easy security and monitoring over one aspect instead of multiple remote machines. DaaS is not ideal for organizations with small budgets due to the pricing and organizations with lousy network connectivity. This would make the end-user experience terrible.
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.
Adding or presenting additional storage to the host can often be a task that is far more involved than competitive products.
The product can require reboots more frequently than competitors due to the DOM kernel getting "hung up".
Sometimes when a virtual machine is deleted it still leaves behind orphaned vdisks.
Recovering from the loss of a host can sometimes cause virtual machines to require lengthy command prompt scripting to fix so they can be powered back on from another host.
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.
Getting the environment setup took me three months of off and on work, with 3 complete rebuilds of the environment. Utilizing the WebUI to access the environment had presented so many random issues that we had to require end users to use the Citrix Reciever App. As it was the only stable solution. Aside from that, it hasn't required much admin intervention since the stand-up was completed.
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.
The performance of XenDesktop is the best in the industry because of the fine-tuned protocol and years of updating. Overall, I don't think there is a better performer on the market. The question is if the added complexity of running XenDesktop is really worth the performance gain. While the latest version of XenDesktop is the easiest to deploy so far, it is still more challenging than the competitors.
The support is great when you get an engineer that knows what they are doing but getting that individual sometimes takes a while. Overall, they are professional and polite and competent in their knowledge. Sometimes the cases are open for an extended period of time which becomes very frustrating when dealing with critical issues.
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
Take it slow and read the directions each step of the way. If you are not familiar with Citrix products, use a reseller or other experienced engineer to assist you in the setup of your environment
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.
Citrix Virtual Apps & Desktops is platform agnostic (we can use any underlying hypervisor technology) and really flexible for any use case. Using a golden image and provisioning it (with Machine Creation Services or Provisioning Services) is powerful and really straightforward, compared to the complexity in Microsoft RDS of maintaining a coherent farm, or the limitation of VMware Horizon to run on VMware Products.
Feature for feature they are neck and neck. I have used Hyper-V 2012 and 2016, VMware ESXi and XenServer evenly. XenServer is a fast install, good documentation, with enterprise features out the box that compare or exceed what VMWare offered with a higher cost of entry.
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.
XenApp has allowed us to continue support of legacy applications and all access of those applications to users across the globe with any device.
XenApp can also manage software licenses by restricting number of users, number of concurrent sessions, or combination of both to required specification.
While initial investment in XenApp can be costly, continuing support and upgrade are very cost effective and product stability is excellent.
While there are competing products from Microsoft and VMware, when it comes to remote application access, XenApp is the best of breed.
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.
