"Technical support is great."
"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."
"The case fileserver on the web server is the most valuable feature."
"The most valuable feature is the flexibility in terms of managing the hardware resources such as RAM, CPU, and the network."
"The stability is the most valuable aspect of this solution. IBM is the most powerful and stable platform."
"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."
"It's in English, so its exceptional qualities make the control environment more flexible, easier, more stable, and easy to recover after issues."
"It's scalable. Whenever we buy another product other than hardware, it's easily integrated into the virtualization software that we download."
"Its ease of management and simplicity are most valuable. It is free, and you can provision an unlimited number of VMs at no cost for clients. They also provide perfect support."
"The most valuable aspect of the solution is the resource management from the OVM Manager."
"It's a very mature product."
"The ability to live migrate VMs on the fly from one hypervisor to another has been very useful."
"Good visualization hypervisor."
"The cloning is a great feature and live migration is very easy."
"The solution is very stable. I don't recall any bugs or glitches. It's reliable. It doesn't crash or freeze."
"What I like the most is the failover and the quick restore of virtual machines."
"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 interface is not user-friendly in places, so it could use some improvement."
"I would like for IBM to be more focuses on the cloud."
"The performance should be improved."
"If it could actually virtualize the entire platform it might be better. If you're having more than one virtualization technology, maybe there's a way to actually have less - one technology to run the data center and maybe one special virtualization for power. If it integrated with other platforms more effectively it might be better."
"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."
"A GUI version of VIOS would be a great plus for people moving from Intel-based hypervisors."
"To make it a ten, I would like for them to add automation and configuration tools in order to help use the manager."
"Deployment should be simplified."
"If you do a gap analysis between VMware and Oracle VM, you can't do VM Snapshot. That's one thing you can't do. It's a sort of a snapshot, but it's not really Snapshot technology. It requires that you're running on CFS-2."
"Oracle VM should be more feature-rich."
"Integration with cloud products would be beneficial."
"There are currently issues with centralized storage."
"The user interface of the version that we have requires improvement. They have already improved the user interface in the latest version, but we are yet to migrate to that. The new UI is much better. I would like it to be simple. It is serving all of our needs, and I don't think it is necessary to keep adding. We are able to provision a VM in ten minutes, and provisioning it in five minutes will not have any added benefit."
"Something that could be improved are the snapshots that go in the ZFS Storage. If you want to enjoy Oracle VM, you will definitely want it to go together with ZFS Storage to maximize on the snapshot facility."
"The solution is at its end of life and is about to be discontinued."
IBM PowerVM is ranked 10th in Server Virtualization Software with 9 reviews while Oracle VM is ranked 5th in Server Virtualization Software with 15 reviews. IBM PowerVM is rated 8.8, while Oracle VM is rated 8.2. The top reviewer of IBM PowerVM writes "Faster performance per core without increasing Oracle license compliance and better scalability ". On the other hand, the top reviewer of Oracle VM writes "Good documentation and a simple setup but has a terrible licensing structure". IBM PowerVM is most compared with VMware vSphere, Hyper-V, KVM, Proxmox VE and Citrix Hypervisor, whereas Oracle VM is most compared with KVM, VMware vSphere, Oracle VM VirtualBox, Hyper-V and Nutanix AHV. See our IBM PowerVM vs. Oracle VM report.
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