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Dell Unity XT vs NetApp EF-Series All Flash Arrays 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
14th
Average Rating
9.0
Reviews Sentiment
7.6
Number of Reviews
35
Ranking in other categories
NVMe All-Flash Storage Arrays (6th)
Dell Unity XT
Ranking in All-Flash Storage
6th
Average Rating
8.4
Reviews Sentiment
7.1
Number of Reviews
196
Ranking in other categories
No ranking in other categories
NetApp EF-Series All Flash ...
Ranking in All-Flash Storage
27th
Average Rating
8.6
Reviews Sentiment
7.5
Number of Reviews
39
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of July 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.8%, up from 0.8% compared to the previous year. The mindshare of Dell Unity XT is 6.7%, down from 10.2% compared to the previous year. The mindshare of NetApp EF-Series All Flash Arrays is 0.7%, up from 0.6% 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.
Syed Habib - PeerSpot reviewer
Efficient data replication and fast IOPS have improved operational performance
Dell and a partner jointly implemented this solution in Auvink. We installed the Flash, which makes our IO operations fast and efficient. Replication is available, allowing us to replicate data simultaneously from one site to another. All-flash technology and vTXT enhance speed, and the IOPS are faster. The cache's IOPS are much better. Snapshots provide a unique feature for testing and make management more comfortable and easy. The platform is multi-supported and certification is more convenient and easy to manage.
Tayo Olubanke - PeerSpot reviewer
Offers flexibility and top-notch technology
You can go to bed peacefully if you have a NetApp. If you have NetApp within your data center, you get to know about power failure if you are using it. Your NetApp will still come alive. Even if it does not come alive, I can say that it is not like other tools when it comes to dealing with power failure. The tool is affordable, and the technology is top-notch. It is the only technology that has software for what we call inline compression and deduplication. All the products under NetApp are aiming to use AI. I know that you can achieve whatever you want to do with NetApp EF-Series All Flash Arrays. I rate the tool a nine out of ten.

Quotes from Members

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

Pros

"The high availability of the product is the most valuable feature."
"The most valuable feature of this solution is its ease of use."
"It offers competitive performance, and the Evergreen storage model of Pure fits well with my organization."
"I use the tool for Oracle databases, Oracle virtual machines, and Oracle Linux databases. I'm on the storage side, not a database administrator."
"FlashArray has some fresh efficiency features. I've never seen a storage solution with a compression rating this high before. It's at least 4-to-1 on Oracle databases. It's the best flash storage for Oracle."
"Everything, especially the VMs inside, is pretty fast."
"The database workloads are pretty fast because I frequently move data from here to there."
"Pure FlashArray X NVMe will quickly overcome all the hurdles you face, including network and latency issues."
"The initial setup was very straightforward. Migration was smooth and configuration of the storage was quick and simple. The time needed to put it into production was less than expected, and data migration itself went without a glitch."
"It has reduced complexity."
"The fact that it's hybrid is the most valuable feature. We have the SSD so we put our SharePoint on there and some of the stuff that requires a little more speed. For SharePoint, we want the pages to respond a little more quickly. And it's nice to be able to use the slower storage for stuff that we don't need as quickly, like file servers."
"It has reduced the latency in application and database reads and writes... All-flash, it's fast. We have the 650 model which is all-flash, upgraded from VNX. It just flies."
"The feature that I have found most valuable is the unified storage. Also, its capabilities for block-access, file access, and the center box."
"In the hybrid version, I would say they are fast. They have fully automated storage tiering. In the all-flash version, higher performance, compression, data replication."
"All-flash performance, Snapshotting capabilities and replication are all valuable features."
"The All-Flash models are pretty fast for the vast majority of our remote workloads."
"The hardware and software of NetApp EF-Series All Flash Arrays are easy for us to use."
"Some of the valuable features include MetroCluster switchover, in terms of disaster recovery, it is easy to use, and flexible."
"The most valuable feature of this solution is the performance of the database access."
"Considering the cost, I find NetApp EF-Series All Flash Arrays to be the best storage available in the market."
"The solution allows us to segregate one storage unit from another."
"The management software is very good."
"We do a lot of in-house, application-dependent type things, where we find the different niches to the different things. Certain things they do better. We've found that it actually does very well on some of our higher-end applications."
"Its performance is most valuable. This solution is much faster than other as well as older storage solutions. The performance of the system is very good. We are getting 50 times better experience than the older storages. We are using AFF 300. It also has native cloud integration and most of the features."
 

Cons

"You cannot tag a LUN with a description, and that should be improved. What I like on the Unity side is that when I expand LUNs or do things, there is an information field on the LUN. This is the Information field that you can tag on your LUNs to let yourself know, "Hey, I've added this much space on this date". Pure lacks that ability. So, you don't have a mechanism that's friendly for tracking your data expansions on the LUN and for adding any additional information. That's a downside for me."
"We would like to see more visibility into garbage collection and CPU performance in the GUI."
"Adding some functions to the product would be beneficial. Storage replication should be essential, and the analytics should not incur extra charges."
"There are some challenges with data encryption and reduction."
"I'd like to see the product implement active replication for vehicles such as VMware."
"We need better data deduplication."
"Adding some functions to the product would be beneficial."
"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."
"More integration with VMware would always be helpful, plugins that go directly into the vSphere management. A single pane of glass is always beneficial."
"We have had some downtime. Nothing is perfect. Unity’s have had some code-release problems, versions that, from a compatibility perspective, had some glitches which caused an outage. But, given the amount of Unity’s we run, that has been fairly minor and it hasn't happened at scale or across all of our Unity’s."
"There is no de-duplication. Unity used to be Bionics, which had de-duplication; however, in Dell Unity XT, the de-duplication was deprecated and is no longer available."
"This solution could be improved by offering containerization. This is something many of my customers are looking for."
"​Improve the interface and provide more management capability."
"Dell EMC's competitor has a clustering technology. In the next release, it would be nice if they could build that into the product."
"We'd like to see a cheaper version of an all-flash array in that footprint."
"The VNX reporting is much more granular, versus the Unity reporting."
"It was difficult to implement and lacks some additional features that would be useful, but as a solution fits a particular need for our organization."
"We have used IBM previously. We found that the storage from IBM was poor and we chose NetApp EF-Series All Flash Arrays because it can scale very easily."
"I would like to shrink it more, if we can. The smaller, the better."
"We need a center related to NetApp in Egypt so that we can deal with them directly."
"There could be better integration with some of our Cisco products."
"They could improve overall scalability through performance. Denser capacity, which is doable, it is what the competition is doing."
"A little more manageability, a simpler management interface. It's not necessarily that it's way overly complex. It's just that it's not as easy as the FAS series."
"Better integration with other brands is important so we would like to see it easier to integrate."
 

Pricing and Cost Advice

"As far as the licensing costs, everything is included in the license."
"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 licensing is on a yearly basis."
"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."
"Pretty much everything that you need is licensed when you buy the product. Licensing to me is different than the maintenance cost, but they can bleed into one another. We buy the product, and we expect three years of support bundled into what we negotiate on our storage arrays. I would start to see maintenance costs going into the fourth year, but we're not there yet."
"Pure FlashArray X NVMe’s pricing is cheaper than other products."
"They can tout the functionality and cutting edge technology that they have, but that's where the price tag comes in. The cost is high, but I think as they grow their business and get more customers that it will probably go down a little bit."
"With VMware, we pay $300,000 annually."
"Compared to other EMC platforms, Unity is nice because it is all-inclusive, in terms of the licensing model. That's unique for them, compared to other manufacturers. It is beneficial. We could use replication, native, right out-of-the-box."
"I rate Dell Unity XT’s pricing a nine out of ten."
"Obtaining a warranty is easy."
"Looking at it based on cost per gigabyte, it's certainly very effective."
"For costing, you have to have a budget in mind because SANs can be fairly expensive and EMC offers a wide range of products."
"The only improvement would be a lower cost per unit/disks, however on the whole we are very pleased with this product."
"The pricing is reasonable. We're using the Flex on Demand pricing. It's really good for us when we pay for what we use. It made it easy to get it inside since it's an OpEx and instead of CapEx expense."
"Because of the attractive price, we were able to get rid of more expensive arrays, standardize, and get rid of a lot of spinning disks. We also got rid of more expensive flash that we weren't properly utilizing."
"This solution is not available to many users because the cost is very expensive."
"Price-wise, NetApp EF-Series All Flash Arrays is costlier than Dell. You have to buy a lot of licenses separately."
"The pricing of the solution is expensive, considering the initial investment required...At the end of the product's life cycle, it could get cheaper, but the initial investment in NetApp makes it one of the most expensive solutions."
"Cheaper pricing is always good. NetApp has been doing everything the right way. They've been figuring out things really well, going in the right direction."
"Most of my customers pay for the license on a yearly basis. It can be expensive depending on the capacity number."
"It's a way to get relatively low-cost, very high-performance, low-latency block storage as a point solution."
"Its cost-effectiveness is a major selling point. Compared to other storage vendors, the EF-Series offers excellent value for its price. It's truly a leading product in the industry."
"The cost of our license is approximately $200,000 over three years for NetApp EF-Series All Flash Arrays. There can be additional costs for storage. For example, if you want to have eight terabytes."
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Top Industries

By visitors reading reviews
Computer Software Company
15%
Financial Services Firm
11%
Manufacturing Company
10%
Government
6%
Educational Organization
41%
Computer Software Company
11%
Manufacturing Company
7%
Government
4%
Computer Software Company
16%
Comms Service Provider
10%
Manufacturing Company
9%
Educational Organization
8%
 

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?
I saw that you have doubts about what you chose. I have a lot of experience with the constructor, honestly I can reco...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
They’re both great solutions and I’ve used both. EMC is being VERY aggressive on pricing which may be the undoing of...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
First of all the decision should be taken looking at similar products in terms of capacity and performance. I will sh...
What do you like most about NetApp EF-Series All Flash Arrays?
Considering the cost, I find NetApp EF-Series All Flash Arrays to be the best storage available in the market.
What is your experience regarding pricing and costs for NetApp EF-Series All Flash Arrays?
One has to opt for a perpetual-based licensing model for one year or three years. After three years, you need to rene...
What needs improvement with NetApp EF-Series All Flash Arrays?
The support of the product is an area with certain shortcomings where improvements are required. I want NetApp's supp...
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
EMC Unity, Dell EMC Unity
NetApp EF540, NetApp EF-Series
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
RP Data, Western Oregon University, Toei Animation
Find out what your peers are saying about Dell Unity XT vs. NetApp EF-Series All Flash Arrays and other solutions. Updated: June 2025.
860,592 professionals have used our research since 2012.