What users are saying about
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Top Rated
129 Ratings
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Top Rated
597 Ratings

Nutanix AOS

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Top Rated
129 Ratings
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Score 9.1 out of 100

VMware ESXi

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Top Rated
597 Ratings
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Score 9.2 out of 100

Likelihood to Recommend

Nutanix AOS

We have based our entire company on the Nutanix hardware and AOS to support all of our servers and clients that we use for our business. It has been a solid product with HA features that allow us to run our business without interruption. For virtualization it is the best solution I have used in the last 7 years. We have both high performance systems and those that require vast amounts of resources and we have found that Nutanix works well in both instances.
Tyler Twitchell | TrustRadius Reviewer

VMware ESXi

ESXi excels at providing stable, highly-available resources for most applications. The vast majority of workloads can be virtualized without a penalty. Hardware accelerated assistance is exposed and effective, and the options are plentiful. Adding memory or compute resources is dead simple. Pooling of resources and defining resource priority is top notch. A key to succeeding with ESXi is to give it more than it needs - more memory, more CPU, more network bandwidth. ESXi will manage those resources effectively so long as you give it room to work.
However, with high-transaction databases and some latency-sensitive applications, ESXi may not be the best solution. I've encountered long snapshot times that have disrupted SQL operations when I/O is frozen to create the snapshot. VMware has documented this and actually recommends avoiding snapshot technology in these situations. While not a common scenario this can result in unexpected production issues without thorough, careful planning. ESXi is also not suitable for devices or environments where outboard hardware (USB and other devices) are required. Lastly, the floppy drive has been dead for years. Why is it still present in the default hardware for a virtual machine in the year 2020? Does anyone actually have a need for floppy emulation?
Anonymous | TrustRadius Reviewer

Feature Rating Comparison

Server Virtualization

Nutanix AOS
VMware ESXi
8.9
Virtual machine automated provisioning
Nutanix AOS
VMware ESXi
8.9
Management console
Nutanix AOS
VMware ESXi
8.6
Live virtual machine backup
Nutanix AOS
VMware ESXi
8.8
Live virtual machine migration
Nutanix AOS
VMware ESXi
9.5
Hypervisor-level security
Nutanix AOS
VMware ESXi
8.9

Pros

Nutanix AOS

  • Nutanix AHV removes the headache from clustering. Once it's set up--which a Nutanix rep completed--the system is largely self-managed.
  • It was a turnkey installation, and I was building virtual machines from day one.
  • The system automatically manages moving VMs from cluster to cluster when software updates are performed on the Nutanix system that require the nodes to be rebooted, so there is no down time.
  • System management from a web browser is easy management, as it can be managed from anywhere there is Internet connectivity.
  • It supports Windows and Linux VMs equally well, allowing access to the VMs from within the browser. This can be much easier than using remote desktop or VNC.
Nathan Roberts | TrustRadius Reviewer

VMware ESXi

  • ESXi makes management of hosted machines easy. Everything is in one place. If you have a vCenter (which costs extra) to manage all your ESXi hosts, then everything is truly in one place and there is no need to hop around from management tool to management tool. Al the virtual machines' hardware settings, OS information, storage volume information, backup information, even a remote console just like a KVM ... all of it is in one place.
  • ESXi balances workloads well when using vCenter. Behind the scenes, the vCenter allows an ESXi host to "talk to" other ESXi hosts and when one VM has resources usage that gets past a certain threshold, it can move virtual machines around to balance workloads, even while the machines are running and service users. It's completely invisible to the users, who don't experience latency or any kind of interruptions when their VM is being moved.
Anonymous | TrustRadius Reviewer

Cons

Nutanix AOS

  • Can be priced high at times.
  • The one downside I have working with Nutanix is the sales team. They seem to try to add in extra goodies to sales quotes or push for extras that you don't really need and you have to tell them to take them out. Don't be afraid to push back on them.
  • Need to analyze sizing with sales team to ensure right sizing.
Anonymous | TrustRadius Reviewer

VMware ESXi

  • I would love for some of the features only available within the upper tiers of ESXi licensing to be available for Standard licensing purchases. There is a vast difference between free, standard, enterprise plus licensing.
  • The learning curve might be an issue for some users, but can be overcome with the vast amount of resources available. You might have to train to find all of the resources as well.
Anonymous | TrustRadius Reviewer

Likelihood to Renew

Nutanix AOS

Nutanix AOS 9.1
Based on 4 answers
We made a huge financial investment with this platform (four clusters, all-flash storage array), so we're in it for the long haul. Luckily it's a beast. I've had to use support more than any other platform I've administered, but the help has been very good. Nutanix continues to add features and innovations which increase the ROI
Nathan Roberts | TrustRadius Reviewer

VMware ESXi

VMware ESXi 3.8
Based on 2 answers
Me, not likely as my current company doesn't use it nor do I use it at home. However, I don't see my previous company ever switching away from it.
Anonymous | TrustRadius Reviewer

Usability

Nutanix AOS

Nutanix AOS 7.9
Based on 2 answers
While you are going to have to comfortable with CLI to perform a lot of functions, the truth is most of the day-to-day work is done right through the web interface. That's one area that has improved a lot in the two years I've had it: how much can be done through the browser as opposed to the command line. And I still would like to see the system better documented. The articles often seem to presume a high level of knowledge about the system, making it difficult sometimes to complete tasks that I would like to be able to perform without contacting tech support.
Nathan Roberts | TrustRadius Reviewer

VMware ESXi

VMware ESXi 10.0
Based on 1 answer
No answer on this topic is available.

Reliability and Availability

Nutanix AOS

Nutanix AOS 9.1
Based on 1 answer
We have not had any Nutanix availability issues over the years.
CJ Rossetti | TrustRadius Reviewer

VMware ESXi

No score
No answers yet
No answers on this topic

Performance

Nutanix AOS

Nutanix AOS 9.1
Based on 59 answers
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.
Jackie Song | TrustRadius Reviewer

VMware ESXi

No score
No answers yet
No answers on this topic

Support Rating

Nutanix AOS

Nutanix AOS 9.6
Based on 69 answers
At Nutanix, support is one of their strongest points. Probably the best support I've worked with (EMC, HP, DELL, IBM, Netapp). Please note that most of these companies utilize third-party/partners for support in Brazil, so it's possible they have better support in other regions, especially USA.
Ricardo Mesquita | TrustRadius Reviewer

VMware ESXi

VMware ESXi 8.7
Based on 59 answers
We have had a bit of trouble with support over the last couple versions of ESX. To be fair, some of the issues coincided with a change from detached storage to VSAN. We have had some system level problems (the good news is that we really don't need much normal support) that they have struggled to fix and that support has been slow to respond to and or be proactive to any degree in these issues. Like many companies that I've seen grow so large, this seems to be just what happens.
Anonymous | TrustRadius Reviewer

In-Person Training

Nutanix AOS

Nutanix AOS 9.1
Based on 1 answer
We requested more training than typical which was very in depth
CJ Rossetti | TrustRadius Reviewer

VMware ESXi

No score
No answers yet
No answers on this topic

Online Training

Nutanix AOS

Nutanix AOS 9.1
Based on 1 answer
The online training was sufficient to get up and running.
CJ Rossetti | TrustRadius Reviewer

VMware ESXi

No score
No answers yet
No answers on this topic

Implementation Rating

Nutanix AOS

Nutanix AOS 9.1
Based on 1 answer
IPv6 is needed for link local discovery. We do not have IPv6 configured on our network so the easiest way to get our nodes configured and discovered by foundation was to configure the IPv4 addressing within the node prior to trying to discover with foundation.
CJ Rossetti | TrustRadius Reviewer

VMware ESXi

No score
No answers yet
No answers on this topic

Alternatives Considered

Nutanix AOS

We looked at both Simplivity and Cisco HyperFlex. Both are pretty good in their own right. Simplivity was very 'efficient' in the way they handled data, but we didn't like the idea of a propitiatory hardware card. Cisco's HyperFlex was our second choice, but we were so impressed with what Nutanix had done for us already, that we were already leaning toward that.
Joe Lemaire | TrustRadius Reviewer

VMware ESXi

We have adopted Nutanix Acropolis as a replacement for our NetApp and a long term replacement for VMWare. VMWare will be interoperable with Nutanix in the near future as a datastore to allow us to slowly migrate to Acropolis or continue to utilize VMWare. VMWare is definitely more full featured than Acropolis however there are some things that are not necessary in VMWare(such as VSan) that are completely built in to Nutanix by design. The Nutanix web interface however is much more responsive.
Colby Shores | TrustRadius Reviewer

Scalability

Nutanix AOS

Nutanix AOS 9.1
Based on 1 answer
We have scaled our products over the years and continue to do so very easily.
CJ Rossetti | TrustRadius Reviewer

VMware ESXi

No score
No answers yet
No answers on this topic

Return on Investment

Nutanix AOS

  • Found an immediate reclamation of time. SAN's are a pain to manage and update - Nutanix made turned a couple hours of work into one click.
  • They are a software company. Every Time they come out with an update I find my performance improving, or a new feature added. Soon I'll be able to give my developers controlled self-service capabilities. I originally bought hardware and it's evolving on me into a private cloud in a box.
Adam Savage | TrustRadius Reviewer

VMware ESXi

  • IT can use its hardware budget efficiently by being able to overprovision and reallocate resources.
  • With the ability to quickly provision and reprovision with templates and automation tools, we are able to provide customers with computing resources and VMs when they need them.
Chris Saenz | TrustRadius Reviewer

Pricing Details

Nutanix AOS

General

Free Trial
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?
No

VMware ESXi

General

Free Trial
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?
No

Rating Summary

Likelihood to Recommend

Nutanix AOS
9.0
VMware ESXi
9.3

Likelihood to Renew

Nutanix AOS
9.1
VMware ESXi
3.8

Usability

Nutanix AOS
7.9
VMware ESXi
10.0

Reliability and Availability

Nutanix AOS
9.1
VMware ESXi

Performance

Nutanix AOS
9.1
VMware ESXi

Support Rating

Nutanix AOS
9.6
VMware ESXi
8.7

In-Person Training

Nutanix AOS
9.1
VMware ESXi

Online Training

Nutanix AOS
9.1
VMware ESXi

Implementation Rating

Nutanix AOS
9.1
VMware ESXi

Scalability

Nutanix AOS
9.1
VMware ESXi

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