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DDN IntelliFlash vs Dell Unity XT comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

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

Everpure FlashArray
Sponsored
Ranking in All-Flash Storage
3rd
Average Rating
9.0
Reviews Sentiment
7.3
Number of Reviews
227
Ranking in other categories
No ranking in other categories
DDN IntelliFlash
Ranking in All-Flash Storage
25th
Average Rating
7.6
Reviews Sentiment
5.9
Number of Reviews
12
Ranking in other categories
NVMe All-Flash Storage Arrays (11th)
Dell Unity XT
Ranking in All-Flash Storage
6th
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
198
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of June 2026, in the All-Flash Storage category, the mindshare of Everpure FlashArray is 7.4%, up from 6.4% compared to the previous year. The mindshare of DDN IntelliFlash is 1.4%, up from 0.5% compared to the previous year. The mindshare of Dell Unity XT is 6.2%, down from 7.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Mindshare Distribution
ProductMindshare (%)
Everpure FlashArray7.4%
Dell Unity XT6.2%
DDN IntelliFlash1.4%
Other85.0%
All-Flash Storage
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
Technical Lead at Wipro Limited
Has improved performance for mission-critical workloads and enabled seamless non-disruptive upgrades
The availability is 99.99%, which is the main factor any customer would need because their data should be available whenever they want to access it. This is one main critical thing. It is very easy to upgrade since Pure Storage FlashArray handles it well. Everything is non-disruptive now; previously, there were forklift shifts, but now that is not the case. Pure Storage FlashArray says no to forklift upgrades. Usually hardware requires downtime, but Pure Storage FlashArray has improved their footprint so that they are not asking for downtime; everything is just a non-disruptive activity, which is why customers are more inclined towards Pure Storage FlashArray. Customers want more of the models in their environment due to the performance they are giving, and everything is in one Pure1 Array console where we can view all the models on one page or just an orchestration tool. You don't miss anything; you have replication, notifications about replication, and details about which host groups replication is happening in and if that replication is successful or failed. On a daily basis, our purpose is to create volumes for infrastructure; our daily activities include creating volumes and mapping them to the host, doing any migrations from a VM, clearing the data stores, and carving the volumes to those VMs. One key factor is the data compression with a ratio of 5:1, focusing on space efficiency, inline deduplication, and the compression Pure Storage FlashArray works on; that is a major factor we can suggest to any customer. Analytical capabilities are crucial. Daily, we check the throughput and consumption, and Pure Storage FlashArray provides predictions for one year regarding usage. This prediction helps plan updates well ahead. For support, we just raise a case, and they follow up and get it done. There is also AI readiness, but with the model R2, we don't have much of that AI readiness. For others, we do have AI readiness that predicts capacity based on daily or monthly trends, enabling us to analyze how much space we need or if we need to expand the disk shelf. From an operational point of view, a good feature is that if you accidentally delete a volume, it will be retained in the destroyed state for the next twenty-four hours, which is not the same with any other vendor. I have worked in this storage domain for the past fifteen years, and this option is remarkable, benefiting any L1 or L2 engineer. Additionally, from a compliance perspective, Pure Storage FlashArray has REST APIs enabled. I have not explored automation much, but from a security standpoint, it is strong with encryption data. If you want to automate, you can easily integrate with all clouds and explore Pure Cloud for scheduling workloads, including volume creation. Customers find benefit in Pure Storage FlashArray's single management pane of glass due to the dual controller and active-active setup. If one of the controllers goes down, all workloads automatically shift to the other controller, ensuring their data is safe and accessible at all times. This is a highlighted feature that any customer desires because their data should always be accessible. For SAN workloads, we use Pure Storage FlashArray because for SAN FC fiber channel, we don't use it; we use NetApp for NAS activities. We have clearly split this, so SAN is for mission-critical applications, while network-attached storage handles file systems. This architecture helps us maximize the benefit from Pure Storage FlashArray due to the significant workloads from this giant retail client. From a footprint and energy consumption perspective, you can see energy consumption from the Pure1 storage portal on a daily basis, and it is very compact. The three models we use consume only three units, which is quite low. From a footprint and data center perspective, it doesn't occupy much space. As everything moves to cloud, there are requirements to avoid excess spending on data centers, and Pure Storage FlashArray is efficient in energy consumption and is environmentally friendly.
reviewer2393595 - PeerSpot reviewer
L3 Storage Engineer at a consultancy with 10,001+ employees
Good customer service and support and suitable for large environments
It is very easy to install. Users don't need to remember anything while deploying IntelliFlash because everything will be taken care of by tech support. They can easily modify the installation or change the password with the help of the tech support. It is very easy to integrate IntelliFlash with other solutions. We have plugins that can be integrated with other solutions. It will require maintenance. It is the same as any other storage solution: updates and upgrades, firmware upgrades, and drive upgrades.
NR
TSG Manager at Navigator Systems
Ease of implementation and robust performance enhance multi-OEM support experience
We are limited only to hardware replacement, not administration tasks. We work on AMC products through Annual Maintenance Contracts. We provide support up to the 680 model. The XT680F is a newer model, and we support from 380F to 680F. The FlashSystem 8000 series is all-flash, and there is also a 5000 series flash model. We can compare IBM DS series, including the 8000 series for recommendations. For NetApp, we can recommend the FAS 8000 series.

Quotes from Members

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

Pros

"Its ease of use is a very big thing for our customers; it's easy to set up and easy to maintain, and the support is automated, which is very good."
"The sales and executive support have been outstanding compared to the rest of the market... My upgrade paths have been simple on the Pure... It's a lot simpler to implement and a lot simpler to manage."
"My rating of Pure Storage is a ten out of ten because of the price for performance and footprint - the overall value."
"We like the data reduction rates. That has been really helpful. You get 4U of Pure storage replacing something like two racks of spinning disks. One of the things that has contributed to that are the data reduction rates."
"Data deduplication is one feature I found to be the most valuable in the tool...Stability-wise, I rate the solution a ten out of ten."
"The first year, we started out with one or five terabytes and it took what was 20 terabytes of storage down to less than one terabyte."
"We tested our VDI environment on this array and it performed flawlessly and boosted the user experience."
"We saw a vast improvement when we switched over to using the Pure Storage model over the XtremIO."
"Ease of Use: Someone can learn it in only few hours Performance: Easy Tier is doing miracles Data Compression: Up to 80% space reduction in the database"
"We have been able to realize storage space savings for our virtualization environment and it has reduced our electricity usage by reducing the number of disks needed for the virtual environment."
"It performed great originally, and when it performed great, it was awesome."
"High performance and ease-of-management are the most valuable features."
"EasyTier/hotcaching: Valuable because it allows greater performance than standard SAS disks Cheaper than pure solid state without needing to actively manage where the data is located."
"It provides a combination of all the protocols that you need, without losing deduplication and compression."
"It's very fast. We were seeing read latencies of less than one millisecond. It is robust."
"Data Compression: Up to 80% space reduction in the database"
"Compared to older generations of arrays there is quite an improvement, compared to the older VNXs, for example. It depends on you use it, but for our purposes, we find Unity simple to use."
"We put the Unity on one of the file servers and the backup performance improved quite a lot."
"They've integrated NAS and SAN pretty well. It made replication very simple. Because one of our systems has a lot of LANs, for it to replicate we have Consistency Groups in there. That's something that is really helpful, making sure that everything is working not just for replication but for backups as well."
"Using this solution has meant that I do not need to look for different partners to provide me with solutions like a backup service. Dell provides end to end solutions."
"Deduplication is the biggest thing for our company."
"I like the idea that it can compress and dedupe inline. That is quite a stunning feature for mid-range customers."
"As far as cost is concerned, it does great deduplication, and from a storage perspective, we save money being able to dedupe right on the disk."
"Tech support is good."
 

Cons

"They could improve the price."
"The areas that have room for improvement include the scheduling process for upgrades."
"Price per terabyte is substantially higher than their competition. We would like to see it drop."
"It goes at about 95 percent, so we have had some performance issues. It is hard to clear them."
"I'd like to see a move towards individual VMs for what the performance of each VM is in a VD infrastructure. I can see the overall volume, but I would love to see things in a more granular level on the VM side."
"In the next release, I would like to see file-level encryption."
"I would like to see data tiering to AWS."
"It would be good to have metrics of the box's performance so we can see what it delivers, but currently, I can't see what it's actually doing."
"It's annoying that if you turn on SMB3 (as opposed to the earlier CIFS protocol), then it is not possible to access a file store using a mixture of SMB and NFS."
"The solution as it is right now is not very stable. The stability seems to have eroded."
"Technical support is bad. It'd grade them at 30% or 40%. The response time is terrible."
"In the proxy section you can’t choose a user account and password, so it is not allowed at the moment to go out, if customer has such constellation."
"We had just one small stability problem with power flapping and it did not start up again automatically. We had to access service ports and manually restart the storage processors."
"In future releases, I look forward to more AI features."
"It only keeps one hour of real-time data without the ability to do deep analysis of each element."
"I would say it's somewhat scalable, maybe not so much as some of the competition, but we don't really care."
"The application's administration needs improvement and become better."
"The pricing is a bit higher than expected, and this is an area where I see room for improvement."
"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."
"We would like to see more advanced integration capability added to this solution."
"We have had customers reporting issues with slow responses from the support team."
"I think there are a couple of things on the file side that we're lacking from the VNX world. It would be nice if we got some of those back. I think there are limitations on how many file systems you can back up at a time. Whereas you can do, I believe, eight continuous per data mover on the file side on the VNX, you can only do something like two or four on Unity. If they could step up to that, that would be good."
"Licensing costs could be reduced."
"The iSCSI and the VMware integation using vSphere could be less confusing."
 

Pricing and Cost Advice

"The price, in general, is around $100,000, however, I know it costs more."
"Pure is typically more expensive than everyone else. You get what you pay for, but I have lost deals to similar solutions because of pricing. They include everything, and that's another positive about Pure Storage. They aren't trying to nickel and dime their customers for different features. It is all included in one price. The license is by capacity, and the price depends on the capacity and the discount we're getting from the vendor. You get the SKU of the physical appliance, support, and maintenance, and that's it. You're licensed for whatever feature they offer. It is all rolled up into the price of the appliance."
"There are no licensing fees or other costs."
"We would like them to improve the pricing, so we could put them to use some more product, like backup or long-term storage. In the future, if the price goes down, then we could buy different types of products."
"The pricing is reasonable."
"We have an Evergreen Storage subscription, which I think is a great feature."
"Our costs are around $100,000."
"The price of Pure Storage FlashArray could always improve. They are still more expensive than some alternative offerings. Cost is always a concern and when there is a battle they tend to be more expensive."
"I recommend the full bundle software in order to have all the functionality. It is more expensive to purchase it one by one."
"I think we pay around 100 grand per year for three arrays or four arrays."
"I liked the price point when we purchased it."
"The price of the solution should be less expensive. However, at some point, you need to pay for facility and performance."
"The solution is very expensive."
"It's an expensive solution, particularly for medium companies. One device costs about 30,000 euros. The support contract is quite expensive as well. We are currently looking for other lower-cost solutions."
"While Dell EMC is costly, I don't have any complaints about their licensing model."
"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 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."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Construction Company
10%
Manufacturing Company
9%
Computer Software Company
8%
Construction Company
19%
Manufacturing Company
12%
Computer Software Company
8%
Healthcare Company
8%
Computer Software Company
11%
Manufacturing Company
10%
Financial Services Firm
8%
Comms Service Provider
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business69
Midsize Enterprise37
Large Enterprise157
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise2
Large Enterprise3
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise48
Large Enterprise96
 

Questions from the Community

Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?
Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...
What needs improvement with Pure Storage FlashArray?
I do not have any improvements at the moment; I like how it is. I have nothing to add about needed improvements.
What is your experience regarding pricing and costs for IntelliFlash?
It is a bit cheaper than other products, 10% to 20% cheaper.
What needs improvement with IntelliFlash?
DDN IntelliFlash should improve in terms of sales. In future releases, I look forward to more features about AI and M...
What is your primary use case for IntelliFlash?
We use IntelliFlash products for larger environments, like Qatar Airways. They have large scalability and use more th...
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...
 

Also Known As

Pure Storage FlashArray
Tegile, IntelliFlash N-Series, IntelliFlash T-Series, IntelliFlash HD-Series
EMC Unity, Dell EMC Unity
 

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
Bank of Stockton, Barnsley College, Boyes Turner, Brigham Young University
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
Find out what your peers are saying about DDN IntelliFlash vs. Dell Unity XT and other solutions. Updated: April 2026.
896,942 professionals have used our research since 2012.