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DDN IntelliFlash vs Dell Unity XT 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

Everpure FlashArray
Sponsored
Ranking in All-Flash Storage
4th
Average Rating
9.0
Reviews Sentiment
7.3
Number of Reviews
220
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
5th
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 May 2026, in the All-Flash Storage category, the mindshare of Everpure FlashArray is 7.5%, up from 6.3% compared to the previous year. The mindshare of DDN IntelliFlash is 1.3%, up from 0.5% compared to the previous year. The mindshare of Dell Unity XT is 6.0%, down from 7.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Mindshare Distribution
ProductMindshare (%)
Everpure FlashArray7.5%
Dell Unity XT6.0%
DDN IntelliFlash1.3%
Other85.2%
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

"Pure Storage FlashArray is simple and easy to use. It offers protection when removing devices. It has the ability to undo deletes."
"The solution has great efficiencies because it has scalability."
"We have looked at all of the platforms, and to see what Pure was able to do within a PoC environment meant that we never turned back our PoC environment."
"With this program, all of our applications are able to perform faster and this enables us to provide faster platforms and services to our customers and employees."
"This solution has improved our organization in the way that in the past we had reports that were taking up to two hours and after switching to SSD storage the overall processing power dropped to half an hour."
"What I appreciate most about Everpure FlashArray is that it performs compression and deduplication fantastically."
"Remote assist is a valuable feature that supports customers and engineers in troubleshooting and resolving issues, allowing for easy problem identification and repair."
"The GUI is very easy to use and intuitive."
"It has cut batch job runtime in half, so we're seeing performance improvement throughout the organization."
"It's very fast. We were seeing read latencies of less than one millisecond. It is robust."
"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"
"High performance and ease-of-management are the most valuable features."
"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."
"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."
"Data Compression: Up to 80% space reduction in the database"
"Tegile All-Flash Storage Arrays deliver maximum performance, high density, compelling economics and it is ideal for latency-sensitive, business-critical workloads such as online transaction processing, real-time analytics, decision support, and data warehousing."
"Storage Snapshots have been really nice. They allow us to do backups without impacting our production workload that much. The scalability, the ability to add disks dynamically and adjust our workload as needed, has also been really helpful. That definitely makes my job easier. And the interface for managing Unity is very easy. The integrations between VMware Hypervisor and Dell EMC are top-notch, so it's been really easy to use and manage."
"The technical support is very professional and provides quick responses."
"The most valuable feature is the ability to provision storage from the CLI, versus having to go in and use the GUI every time. I can just script it out and it will create what I need. That makes it super-easy to manage. Also, for us, it's a set-and-forget. Once we provisioned it out, we haven't had to mess with it."
"Delivers High IOPS, but more important, low latency as this is the most important part for our usage."
"We saved money by moving off old storage and we gained extra capacity and speed."
"Dell Unity XT is user-friendly and easy to use."
"Stable data storage platform which promotes ease of management through its multi-cloud support. Remote support provided to users to address issues is very good."
"The most valuable feature is the ease of integrating it into our current environment."
 

Cons

"For scalability, I rate it a six out of ten. We reach a limit. We never reached this limit, however, the architecture allows you to go until a certain size, and after that, you have to buy another array."
"Larger capacity and more storage ports would be the two things I'd like to see."
"We would like to integrate it more with our backup solutions."
"We have not seen a reduction in our TCO nor have we seen ROI."
"I would rate this solution an eight. There's always room for improvement, nobody is perfect to get a ten out of ten."
"Regarding documentation, it would be helpful if we could have access to the root passwords for administrative tasks."
"If there is one thing that I did not appreciate about Pure, it is that between the two different lines, which would be FlashBlade and Everpure FlashArray, there is no easy way to migrate LUNs as far as being able to replicate across those platforms."
"As partners, we should have the option to download the software, rather than have to go back through Pure to obtain it."
"The solution as it is right now is not very stable. The stability seems to have eroded."
"I would say it's somewhat scalable, maybe not so much as some of the competition, but we don't really care."
"The monitoring matrix and its dashboard need work."
"In future releases, I look forward to more AI features."
"It's somewhat scalable, but maybe not so much as some of the competition."
"It only keeps one hour of real-time data without the ability to do deep analysis of each element."
"Snapshots are not as easy to access as on a NetApp device."
"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."
"We did encounter a firmware bug which actually caused loss of data."
"Firmware Upgrades in EMC Unity require you to manually download OS and Drive firmware, this should be integrated (Nimble does this). When you order an EMC Unity, you have to specify the block size."
"There is room for improvement in manufacturing."
"It needs deduplication. We'd like to have the dedupe capabilities in the Unity."
"The reporting should be better. In other systems, you can create many different kinds of reports but this is not the case with Dell."
"Dell Unity XT could improve the compatibility of some of the features. Some of my customers had some problems. Additionally, it would be beneficial for the solution to have advanced AI and ML features."
"I'd like to see more of the NVMe back-end for the flash. And the big deal with the PowerMax is that they've used all U2 drives so that they can avoid having to take it down. I see using M.2 and modular sections as being a real nice alternative that could be implemented in Unity at a fairly low cost."
"The payment account area."
 

Pricing and Cost Advice

"The price of the solution can be a bit expensive. There is an additional fee for support."
"You can pay extra for Evergreen support, which gives you free upgrades when new features are introduced."
"The pricing is an issue. However, being all-flash, it will always be sort of expensive."
"We evaluated Oracle and Hitachi, but Pure Storage had the better pricing."
"The price is reasonable."
"Pricing is moderate. It is neither cheap nor expensive."
"Pure Storage FlashArray is expensive."
"In the beginning, we saw that the price is not very good. When we made some compilations about the deduplication and the compression and what the equipment does, including the differentiation of upper management of the storage, the price was not so bad. However, in the beginning, the price was very difficult to justify."
"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 bought extended warranties out of the box because our customer has a bad habit of managing warranties."
"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."
"There is no capacity license for XT and no additional costs for expansions. I would rate its pricing as four out of five."
"The ROI is right where we need it to be. It's a reasonably priced array."
"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."
"Go with the virtual appliance versus the hardware."
"The solution is extremely functional for the price that we pay for it. It is worth the investment."
"The support you're getting with it is probably an underestimated value that comes with the box you're buying."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Construction Company
8%
Manufacturing Company
8%
Computer Software Company
8%
Construction Company
14%
Manufacturing Company
11%
Computer Software Company
9%
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 Business66
Midsize Enterprise36
Large Enterprise156
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 is your experience regarding pricing and costs for Pure Storage FlashArray?
The only issue is the pricing. Because we have competition, our customers always take another brand and say they can ...
What needs improvement with Pure Storage FlashArray?
Our customers using Dell storage also use competing solutions. Our customers who have Everpure FlashArray may also ha...
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.
894,807 professionals have used our research since 2012.