Most are very good, performance is good. But some of the pre-build VMs took a longer time to boot up. Sometimes, we transfer data from one VM to another VM, it is actually bit slower than we expected. Other than those, we do not have other challeges.
I give this rating as it is not an apples to apples comparison when you move your workload from traditional separate bare metal compute, hypervisor, network, and storage onto a Nutanix hyper-converged platform. So, much of the comparison would be based on a perceived interpretation of how it should correlate.
No secret sauce here! It has a bunch of SSDs and a very well written code to ensure that the data is always written to the localhost/local disks. The performance is very good! VMs power on in a couple of seconds.
It's done everything we have asked of it and more. It's been stable and trouble-free for a great portion of its lifetime. It did all of this and still saved us almost 8U of rack space. We could not be happier with the system in both form and function.
We as a company have seen good performance with the Nutanix product, meeting or exceeding that of other hypervisors we have used, such as Hyper-V and VMware ESXi. We have transitioned from other vendors' hypervisor platforms with great success and whenever the need has come up where more resources are needed for a VM Nutanix has been able to handle the load without issue. Where that is a simple change of a couple of CPU or having a VM that required 24 CPU and 256GB RAM, Nutanix has handled it all.
All the benefits of hyper-convergence and Nutanix AOS has been very reliable when there have been incidents with the hardware. The operation has not been impacted, in production schedules, it is safe to make changes of parts and even a complete node.
Our Nutanix cluster is a hybrid array consisting of HDD and SSDs. Nutanix uses tiered storage where hot data remains on SSD and cold moves to HDD. We came from a 15K Dell EQL SAN and performance is leaps and bounds better. We noticed the biggest jump in our MS SQL servers.
Yes, yes, yes! Overall performance has dramatically increased. The applications and data read/write is faster than it has ever been. On top of all that, the movement of virtual machines and loading is faster than I would have imagined could be possible. It is the future tech and should be head of the class for a long time.
Because of the hyper-converged infrastructure model, you will take advantage of SSD storage when needed (In hybrid configs). VMs not frequently accessed will be put on HDD SATA storage and will also be available. Nutanix looks at workloads to decide what VMs should be accessible via SSD and which via HDD. If you have an all-flash system then everything is loaded from these of course and we have seen on most migrations only this is already boosting performance for applications and VDI environments.
We were informed from the word go, by our users, that they noticed performance improvements as soon as their workloads went live on the platform. We have varied workloads running on AOS, with demanding CPU, memory and, disk-intensive characteristics, and Nutanix handles them all brilliantly.