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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

"The seamless integration into the public cloud has improved my organization."
"The scalability options are very nice because you can scale it much better and faster. The scalability was there in the previous environment also, but this is far better than what we had before. It basically helps the user in case they are looking for more storage. We can scale it much faster."
"This solution has helped my organization by cutting down on provisioning time. I used to have to provision a VM and it would take ten minutes. Now, it takes thirty seconds."
"If it's financially viable for you and you can afford it, it's worth it."
"The solution is stable with low vulnerabilities."
"I can personally state that the Pure Storage Flash Systems are the best built and Pure has the utmost professional customer care."
"I like its speed. It has all the features that I need."
"Deduplication is an excellent feature. I also like the NAS and support."
"After five years, the cost decreases over 30% and the performance increases over 50%."
"It's very fast. We were seeing read latencies of less than one millisecond. It is robust."
"The initial setup is straightforward."
"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"
"It provides a combination of all the protocols that you need, without losing deduplication and compression."
"High performance and ease-of-management are the most valuable features."
"It performed great originally, and when it performed great, it was awesome."
"With so much technological advancement and more coming, the world is their oyster."
"Our Unity arrays are our primary storage arrays for both of our data centers; we run all our VMs on there, they are all-flash, have been running great, and we have had no problems with them."
"User friendly interface Scalability It is shipped with all licensed, included for this product range, no need to buy additional licenses Flexible support plans Prompt answers from EMC support"
"Purchasing; We worked with a sales rep to purchase our Unity."
"My experiences are generally positive with this product."
"We use it to backup our storage, and also positioning LANs by using the file option, then the block, and it is very easy and convenient."
"It can be simple to deploy, the standup time is quite quick, the interface is quite quick, the terms are simple and intuitive, it's similar to what was there in the VNXE before it, and it's very simple to navigate and administer from the console."
"The first time we got a Unity was last year, we started deploying some of our file system data into it, and we have been seeing a significant improvement, not just in the way that we take Snaps, but with the recoveries as well."
"The best is still Dell EMC Unity XT."
 

Cons

"As long as they always improve on IOPS speed, that's all we're really looking for. The faster the storage can be the more we can do speed of application and speed of use."
"They should work on their upgrades, they're not smooth."
"We have not seen a reduction in our TCO nor have we seen ROI."
"Many high-end platforms from other vendors like Dell EMC or Hitachi, their backend has Active/Active architecture, unlike Pure Storage FlashArray which doesn't utilize an Active/Active architecture on the backend."
"FlashArray's capacity for forecasting should be improved because it needs to be a bit more current. I think it's bundled with the deduplication and other compression factors. We need more user interfaces for forecasting in this software and more interfaces need to be integrated with this array management tool."
"The only minor issues that come to mind are that, every once in a while, a hard drive will go bad. Also, the solution should be cheaper."
"What it needs to do is work a little closer with solutions, like VMware, so it understands the particular workloads that are on it. Today, it does not understand the applications which are running against it."
"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 only keeps one hour of real-time data without the ability to do deep analysis of each element."
"Technical support is bad. It'd grade them at 30% or 40%. The response time is terrible."
"In future releases, I look forward to more AI features."
"The monitoring matrix and its dashboard need work."
"I would say it's somewhat scalable, maybe not so much as some of the competition, but we don't really care."
"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."
"They need to offer better integration for a virtual platform to enable you to create hyper-converged solution."
"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 biggest one for us, and the reason we don't use it more, is that we can't throttle the replication speed. If it's on, it's on. So we have to be a little more WAN-sensitive, in some applications, which means we can't put it everywhere. That's the biggest issue for us, by far."
"Problems with I/O modules, with bugs that came out that really should have been caught before the product was released."
"The user interface could use improvement."
"The support portal needs fixing. Accessing a service request on the support portal seems to be a bit difficult, as opposed to just calling the 800 number."
"Recently, customers have been asking for a cloud tiering option in storages. Some Dell storages do not have cloud tiering, which is an optional commercial feature."
"There are some features in VNX that I wish were in the Unity. For example, Storage Groups for isolating LANs and hosts. That is a big issue."
"The price of Dell Unity XT is reasonable. However, if you are buying a custom solution, it can come at a considerable price."
"I would like the device to have the ability to pull down its own firmware. That would be a great thing."
 

Pricing and Cost Advice

"The pricing is reasonable."
"Pricing is moderate. It is neither cheap nor expensive."
"The pricing is very attractive and it delivers performance for the money."
"The price is reasonable."
"There should be quite a bit of reduction of TCO with just licensing (and stuff) because we run the VM environment off it."
"The price is too high."
"It's priced higher than the market."
"Pure Storage is all-flash, so this sometimes tends to make it a bit more expensive in the beginning."
"I think we pay around 100 grand per year for three arrays or four arrays."
"I recommend the full bundle software in order to have all the functionality. It is more expensive to purchase it one by one."
"We checked both HP and Dell and we determined that Dell EMC was a better option."
"Looking at it based on cost per gigabyte, it's certainly very effective."
"Our big return of investment is the ability to scale and not add FTE counts nor extra administration."
"This unit is one of the cheapest storage all-flash arrays in the market and it does well for what it is intended. It can be combined for both file and block storage."
"Compression is making a difference towards the amount of hardware that we need to purchase."
"The return on the investment was simply speeding up our entire vSphere stack, which allowed our developers and engineers to get their workloads done faster and simpler. We were experiencing VM snapshot times of 45 minutes to two or three hours, and it shrunk it down to under five minutes."
"This solution is a good price for what you get."
"The product’s pricing should be improved."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Manufacturing Company
9%
Construction Company
9%
Computer Software Company
8%
Construction Company
16%
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.