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NetApp AFF vs Nutanix Unified Storage (NUS) comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Pure FlashArray X NVMe
Sponsored
Ranking in All-Flash Storage
15th
Ranking in NVMe All-Flash Storage Arrays
6th
Average Rating
9.0
Reviews Sentiment
7.6
Number of Reviews
35
Ranking in other categories
No ranking in other categories
NetApp AFF
Ranking in All-Flash Storage
2nd
Ranking in NVMe All-Flash Storage Arrays
2nd
Average Rating
9.0
Reviews Sentiment
7.6
Number of Reviews
311
Ranking in other categories
No ranking in other categories
Nutanix Unified Storage (NUS)
Ranking in All-Flash Storage
6th
Ranking in NVMe All-Flash Storage Arrays
4th
Average Rating
9.0
Reviews Sentiment
7.5
Number of Reviews
77
Ranking in other categories
Software Defined Storage (SDS) (3rd), Public Cloud Storage Services (6th), File and Object Storage (3rd)
 

Mindshare comparison

As of May 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.8%, down from 0.8% compared to the previous year. The mindshare of NetApp AFF is 9.3%, down from 9.8% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 0.6%, up from 0.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage
 

Featured Reviews

Eugene Hemphill - PeerSpot reviewer
Helps to save money and resources with the data compression feature
One point I'd like to improve is that the tool should start selling small boxes again. It discontinued some products and is focusing on bigger, more capable boxes, neglecting the SMB market. Even though it's not a big market, it shouldn't have removed them. One way to improve the product is to add an operational assistant that doesn't depend on VMware. It could also establish more alliances with other operational systems.
Anna Sofo - PeerSpot reviewer
Since switching, our clients have reported improved performance and reduced latency
I like NetApp AFF's deduplication. The solution's AutoSupport feature is efficient and effective because customers are notified of potential issues before they experience problems with NetApp. The support is sold based on metro clusters, so they guarantee the client's business continuity. NetApp has an Active IQ app that allows you to get information on your smartphone.
Juan-Contreras - PeerSpot reviewer
Ensures streamlined management, simplified infrastructure, and efficient data handling
It has effectively managed our unstructured data, including audio and video files. We've experienced smooth operations without any complaints regarding uploading or downloading videos. While video usage isn't as frequent, we primarily utilize it for downloading videos related to specific incidents for administrators or our police department. We've encountered no issues uploading files of any kind. Transitioning from VMware to Nutanix has highlighted the overall flexibility of Nutanix's platform. Unlike VMware's three-tier system, Nutanix simplifies the learning curve by streamlining operations. The update process, in particular, has been favorable, with no critical issues encountered. The resiliency of Nutanix hasn't been thoroughly tested in our environment so far. However, I routinely check fault tolerance settings to ensure they meet our requirements. During the update process, I've observed critical errors occur as hosts restart, but Nutanix's self-healing mechanism handles these issues seamlessly. The benefit of using Nutanix is evident in several ways. Firstly, we've effectively compressed our storage while significantly expanding our overall storage pool. Previously, our service had a capacity of twenty-five terabytes, but with Nutanix, we've scaled up to a hundred and twenty terabytes physically and approximately fifty terabytes logically. This expansion has been accompanied by noticeable improvements in performance, particularly with reduced latency and IOPS well within the boundaries of our equipment. All our resources are centralized in a single location for managing and running storage: our data center. We operate three Nutanix nodes within this center, effectively managing everything from one central location. We don't have any other locations outside of our data center running a Nutanix cluster. Nutanix's capability to eliminate silos within our organization's storage infrastructure was discussed during our recent call with the engineer. Although we haven't explored this feature extensively yet, there's a forthcoming project where we anticipate leveraging it.One thing I'd appreciate is having a desktop application similar to what VMware offered. With VMware, I could download a separate client program onto my computer, allowing me to log in directly rather than accessing the host through a browser.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"Offers excellent features like efficient data reduction, a reliable SafeMode, and a great support model for continuous assistance and updates."
"The solution uses newer technology for deduplication and compression."
"Everything, especially the VMs inside, is pretty fast."
"The standout features for us in Pure FlashArray X NVMe are its robust DDoS protection, seamless transparent failover, and failback capabilities ensuring high availability."
"It has good, reliable, fast storage."
"We're able to get higher-density workloads on the same infrastructure, and we have a smaller physical footprint. The performance is excellent – during our test the bottlenecks are never on the X array, it just keeps picking up the pace to match what you need. The real-time visibility is a differentiator in my opinion."
"Pure FlashArray X NVMe will quickly overcome all the hurdles you face, including network and latency issues."
"Technical support has been helpful and responsive."
"All of the features are good. With Flash, we have high-performing databases. Having that kind of performance has been valuable."
"High availability"
"Regarding features, SnapMirror is one we depend on right now. It helps us provide snapshots to the customers on request. There are many scenarios in which we might take snapshots in various daily use cases. We trigger the snapshots, which gives us a sense of security because we know we have this technology in place if something happens."
"I like the ability to snapshot, and the cloning features are valuable to us as well. I like that I can quickly and efficiently snapshot the data and move it to wherever I need to locally or in the cloud. Also, I know that when I take the snapshot that all of the data will be there and that it will be usable when I need to use it."
"MetroCluster provides business continuity and is a critical part of our contingency setup."
"Scalability is excellent. If we need more space, it's a no downtime solution. It's harder to get the funding than it is to get the solution itself."
"Other manufacturers claim simplicity. In fact, frankly, they do have an advantage in that regard, however, they don't have the functionality. If you were to compare one of those products to NetApp, head to head from a feature perspective, NetApp would wind up in the top 10."
"I think it is a very stable product."
"Some of the features that we use include replication and snapshot capabilities, especially from remote locations to our data centers. The main benefit our company sees from using Nutanix Unified Storage is simplification. In the past, we used three-tier solutions with a lot of complexity and operational overhead. Now, we want to focus on the layers above. I want to have storage available, but I don't want to have to think about it. I want it to work without any issues."
"I rate Nutanix Unified Storage (NUS) a ten out of ten."
"The solution is very easy to manage."
"My company has benefitted from Nutanix Unified Storage because we have everything in a centralized place. With Prism Central, we can go to the console files and do what we have to do."
"The scalability, data redundancy, and security are valuable."
"We appreciate how Nutanix Unified Storage (NUS) performs very well. We appreciate being able to have the duplication of the data to a secondary location."
"The product is good, easy to upgrade, easy to use, and user-friendly."
"The most valuable feature is that it is highly available, solving the pain-point of delaying updates to Windows-based file servers during production hours. And then the second one would be ransomware protection and analytics. It gives you great visibility and protection on your file shares that are otherwise the most common sources of vulnerabilities."
 

Cons

"We have run into a couple of instances recently where we are running out of space. So we have had to buy some more packs for it and they have deployed fine and it has increased smoothly."
"In the next release, I would like to see real-time analytics for further insight into consumption models."
"In terms of what needs improvement, the dashboard and management could be simplified."
"I'd like to see the product implement active replication for vehicles such as VMware."
"Managing data isn't difficult for me. The performance is usually perfect, but we sometimes have capacity problems."
"Many options to check performance, like read, writes, random writes, and random reads, are missing in Pure FlashArray X NVMe."
"They could add more support for file storage and different types of storage."
"Right now, the box itself is just strictly working as a backend storage system. It would be fantastic if we could access it directly like a NAS device through network access or SIS drives. I think they have an interface, but I am not sure how good it is. If we could address a box directly on the network without having to go through a server, it would be great. The replication schemas could be improved. We are not using replication on the storage level right now. We use a different type of replication. If their replication would be as good as the one that we have, I would probably run the replication schema because it might be faster, but I don't know that for a fact. So, I cannot say that they have good replication. All I can say is that they need to inform us better."
"I would like it to be an IP as our network is mainly IP-based."
"We would like to have NVMe on FabricPool working because it broke our backups. We enabled FabricPool to do the tiering from our AFFs to our Webscale but it sort of broke our Cobalt backups."
"We were migrating from Data ONTAP 7-Mode to its Cluster-Mode. Therefore, we had to get swing gear, then do the migration from loner gear and back onto our new gear. This was a bit difficult. It took us several months to do multiple migrations."
"Their backup software could be improved."
"I need faster Fibre Channel over Ethernet. They top out at 10GBs today and I would like that to go to 40 or 100."
"I've had a few cases where support wasn't able to answer the question or they took quite a while."
"The NetApp support could be better."
"Additional performance, additional data efficiencies, that's what everybody wants right now."
"There should be more information. If it gets used more by more people, they will have a bigger community to share ideas. It is still kind of newer. It is not as big as Dell and other companies."
"The pricing could be improved."
"Improving quota policies would be advantageous, particularly by offering the option to implement blocking instead of just issuing warnings."
"The escalation process with technical support could do with some improvement."
"There are still some gaps in the solution's synchronization that could be improved."
"Lowering the price would improve this product."
"Its interface is very simplistic. It is a good thing for people because of the ease of use, but at times, I find it too simplistic. It is hard to find advanced options. They should eventually expand it and provide additional drop-down lists or menus with advanced feature sets."
"The solution should include more protocols to access data."
 

Pricing and Cost Advice

"The tool is an investment that we've budgeted for. While the prices may be higher than those of other vendors, we see it as a market leader with benefits. We don't regret purchasing it."
"With Pure Storage, we would like to continue seeing price reductions with flash storage. I don't think we're any different than anybody else when we continue to look to the industry for price reductions of both NVMe and traditional SSD storage. We would like to see these prices continue to decline and erode, even displacing large spinning disks."
"With VMware, we pay $300,000 annually."
"The tool's pricing is cheap; I rate it a six to seven out of ten. Most of our sales are not subscription-based. We sell the hardware, and customers keep using it. They only renew the service part annually. The support can be a bit pricey, but the solution is more cost-effective than anything else out there."
"The support cost per array is about $20,000 a year for 24/7 support."
"As far as the licensing costs, everything is included in the license."
"Our licensing fees are $500,000+ USD."
"Its price could be better. It is not too expensive, but it is the high-end cost. It is kind of a Rolls-Royce. You pay a lot, but you get a lot out of it. So, the price pressure on the way down would be great, but at the end of the day, if you need to do the work, you just pay for it."
"The total cost of ownership has decreased a great deal. As far as percentages, it's hard to gauge, but we did have quite a few personnel staying up, making sure batches ran well every night. Now, batches are being done by 8:00 in the evening, so we don't have to do that anymore. When you start adding the employee hours that we have for people working in the off-hours, and it is not an issue anymore, I suspect TCO might have gone down 25 percent."
"There is room for improvement when it comes to the cost. The cost is very high compared to other devices."
"NetApps offers a lot of different options. Just take your time and work with the consulting teams. Lay out what your needs are to ensure you are purchasing what will help you be successful."
"Once we did get into the NetApp ecosystem, we realized that the cost effectiveness was greater than we originally thought."
"Our total cost of ownership (TCO) has decreased by 40 percent."
"The pricing is pretty reasonable for what we get. But if you have to buy any more disk space, it can be quite expensive."
"It is pretty expensive compared to other solutions. I would give it a seven or eight out of 10 in price (where 10 is expensive) compared to similar solutions."
"I would like it to be a lot less expensive, but it's been a very good solution for us."
"The pricing is fair."
"I hope that it will stay the way it is. We have seen the changes in VMware and what happened to them. I have heard that Nutanix will raise the prices, but I hope that they will not do that."
"I'm happy with the cost and licensing because I don't have big volumes."
"While the price may not be the most affordable, I believe it offers good value for the benefits it provides."
"If we compare the cost of Nutanix Objects Storage to other solutions such as VMware licenses, our current choice is Nutanix Objects Storage. This solution is more cost-effective. However, adding VMware to Nutanix would not be a cost-efficient decision, which is why we do not use it anymore."
"The pricing is a bit too high."
"In my opinion, the product is fairly priced."
"It is quite expensive otherwise as it comes with three-tier peer underlying hardware."
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Comparison Review

it_user186357 - PeerSpot reviewer
Jan 28, 2015
NetApp vs. XtremIO
Is there another storage platform as feature rich as NetApp FAS? I think it is fair to say that NetApp FAS running Clustered Data ONTAP is a very feature rich platform – the move to the clustered version of ONTAP has brought many next-generation features including Scale-out and Non-disruptive…
 

Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
11%
Manufacturing Company
10%
Government
6%
Educational Organization
67%
Computer Software Company
6%
Manufacturing Company
6%
Financial Services Firm
3%
Computer Software Company
33%
Educational Organization
19%
Manufacturing Company
5%
Financial Services Firm
4%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What do you like most about Pure FlashArray X NVMe?
Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use.
What needs improvement with Pure FlashArray X NVMe?
Adding some functions to the product would be beneficial. Storage replication should be essential, and the analytics ...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
Well, Is one thing NetApp Storage has vs other brand is the mix of protocol CIFS with NFS booth working together in t...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
This question is very dependent on your requirements. Both are among the best in the field. Of course, the intended c...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
The answer depends on your needs and budget. If you want high performance (who doesn't) or let's say the latency matt...
What do you like most about Nutanix Unified Storage?
Nutanix has excellent product documentation available on their portals, written in simple, easy-to-understand language.
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
NetApp All Flash FAS, NetApp AFF, NetApp Flash FAS
Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
DreamWorks Animation, FICO, Yahoo! Japan
JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco
Find out what your peers are saying about NetApp AFF vs. Nutanix Unified Storage (NUS) and other solutions. Updated: April 2025.
850,671 professionals have used our research since 2012.