We performed a comparison between Citrix Hypervisor, IBM PowerVM, and Oracle VM VirtualBox based on real PeerSpot user reviews.
Find out what your peers are saying about Proxmox, VMware, Microsoft and others in Server Virtualization Software."What I like the most is the support of the GPU Graphics and the VM Live migration."
"Citrix Hypervisor integrates easily and I can manage the infrastructure better. If I need to take a machine down to expand the hard drive, I do not have to physically be here. I do not need to order new equipment or new hard drives. I can shut it down, increase the drive space and bring it back up."
"The most valuable features are being able to host many virtual machines and being able to patch machines."
"The price is the solution's most valuable feature."
"The feature I find most valuable, is its performance"
"The compatibility of the solution is its most valuable feature. It's compatible on almost every cloud these days."
"We find there are good central maintenance and central management panels."
"Citrix Hypervisor is quick to deploy and easy to manage."
"Active Memory Sharing dynamically reallocates memory of running partitions based on changing workload demands. The memory for the pool is carved out from Physical memory and is made logical memory. The said memory is not available to be assigned to partitions as dedicated memory. A min, max and desired as well as weight is assigned to the memory of each lpar to help hypervisor make a decision in case a condition where priority is to be given to a certain lapr to use the memory form shared pool."
"It is a complete solution."
"The case fileserver on the web server is the most valuable feature."
"The feature that I like most is the versatility."
"The tool's performance is top-notch."
"A valuable feature of PowerVM is a feature that is used for higher availability plus stream for posting, which is very useful. There's a flash copy feature which we are using. PowerVM itself, I know, helps us to control and manage our Oracle licensing compliance, since it is our hardware partitioning. This is very important. If you use VMware, there will be a licensing issue. This PowerVM is a hardware partitioner, which is very important for license compliance. We are happy with this solution."
"The most valuable feature of IBM PowerVM is the performance of the database workload."
"We always recommend PowerVM to our customers; it is better than most solutions."
"The installation is easy."
"The good thing is that it is multi-platform. Once you create a virtual machine in one particular environment, you can switch over to see if you can run it in other environments. For example, if you are on Windows and you create this virtual machine, you can actually go ahead and change the operating system. You can switch it over to Linux or Mac OS and see if you can run the VirtualBox on those particular machines. It even runs on some of the commercial operating systems that are not mainstream, such as Solaris and BSD. These kinds of operating systems are also supported by VirtualBox. The other thing that is good about VirtualBox is that it is open source. So, if you need to do any modifications for your own purposes, you can just download the source, modify it, and deploy it in your environment. It is pretty good and very versatile. You can create and manipulate virtual machines from the command line, which is also very important. It's something that some other products on the desktop side do not have. VMware Fusion and Parallels Desktop don't have a good command-line interface to create and manipulate virtual machines, whereas VirtualBox has it out of the box, which is pretty good."
"Technical support is good."
"The versatility, simplicity, and stability of the product are it's most valuable features."
"I like that it is free and runs on Linux/Ubuntu - I wouldn't use any other solution. I am able to perform small developing tests."
"The pause feature is valuable. I can pause, which is something that not all hypervisors allow. The snapshot feature is also valuable."
"This is a good and easy solution for running virtual environments."
"This is a highly scalable solution."
"I would like the possibility of updating the hypervisor by applying security patches."
"The solution is too expensive and people are kind of moving away from Citrix. It's starting to become a problem. It is a primary reason that while we are rebuilding we're going to seek out open-source solutions."
"The solution is only in English. It would be ideal if it was in Portuguese."
"Live migration is something that can be improved."
"The USB support for the virtual server needs improvement."
"The graphics user interface is pretty bad."
"We'd like them to add more automation to the product."
"The solution needs better backup facilities that are available for virtual machines to create servers on."
"A GUI version of VIOS would be a great plus for people moving from Intel-based hypervisors."
"Any improvements that can be made in the interface will go a long way to helping us work better."
"IBM should review the price of this solution in my opinion; it is too high."
"PowerVM's platform build and performance could be improved."
"I don't know whether this has been trialed already, but IBM should give us an alert when we reach seven or eight failovers so that we can automatically switch it to manual mode. That would be great because if we cross the 10-day licensing limit, we have to pay a hefty license cost to Oracle. If IBM could view that feature, it would be helpful in license compliance."
"The program has very limited solutions for the virtualization of containers"
"IBM PowerVM does not integrate with Microsoft."
"This solution is lacking the ability to have servers act as a cluster, such as in VMware. IBM has come out with a feature similar to VMware's vCenter but it is not as mature. They need to add LPM shared-nothing feature, such as in vMotion."
"The solution needs to improve the methods used for starting and stopping the machine."
"There are a few bugs that need to be updated."
"The technical support needs to improve."
"The installation is difficult and could be improved."
"The solution lacks some open source remote administration tools. The reload of individual virtual machine definitions through the vboxweb service (via its API) without restarting it and the access to shared storage (to use teleport functions) need to be improved."
"Basically, the GUI and command-line interface need improvement."
"The user interface needs to be improved."
"The memory and hardware usage could be a little bit lighter. Right now, it's quite heavy on the usage. The CPU usage should be lower."
