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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

"Has also helped simplify storage for us. The other person we put in there, took about a week to implement. And we had both arrays set up within around four hours with a thirty minute drive time between the two locations."
"It gives us capacity planning."
"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."
"It helps us maintain uptime much better than other solutions we've used in the past, and the support is extremely quick and responsive."
"They are quite responsive and our local team was pretty good."
"Performance, dedupe, and that it works well with database workloads are its most valuable features."
"The features that are there now are really what we need."
"The performance and the ever-growing maintenance are the most valuable features of this solution."
"High performance and ease-of-management are the most valuable features."
"With so much technological advancement and more coming, the world is their oyster."
"It has cut batch job runtime in half, so we're seeing performance improvement throughout the organization."
"It provides a combination of all the protocols that you need, without losing deduplication and compression."
"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."
"After five years, the cost decreases over 30% and the performance increases over 50%."
"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."
"The most valuable feature is the ease of integrating it into our current environment."
"The All-Flash models are pretty fast for the vast majority of our remote workloads."
"Pricing is relatively good compared to other vendors with the same specifications."
"If you're looking at a flash-based system, one that you want to work and not to have to play around with it - to be sure it's working all the time - Unity is definitely a step in the right direction for any company, going forward."
"We have resolved IT challenges with this solution. It sped up our environment. We went from spinning disk to all-flash, which reduced our footprint."
"It is lightning fast, low on power and heat, and has a small footprint with great performance."
"It will certainly help us scale bigger."
"The flash aspects of the Unity make it incredibly fast. The fact that you get that much storage directly on what is basically a 3U box to us, that density has been really useful."
 

Cons

"We would like to see more development on their Copy Automation Tool (CAT) for Oracle, as well as better integration for our customers running Oracle VM."
"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."
"I would rate this solution an eight. There's always room for improvement, nobody is perfect to get a ten out of ten."
"The price could be better."
"In terms of improvement, Everpure FlashArray could have more attractive UI/UX design compared to other solutions."
"A year ago they promised that they would be able to read through the database encryption with more metric and they have not delivered on that patch, which is significant because it gives us back so much more storage room."
"The credentials on the iSCSI interface are only available to type in with the Chrome browser, and not with the Firefox browser."
"With scalability, I have run into a little problem with our last upgrade. There were some undocumented limitations to the number of drives that our controller could run on. So, instead of putting in a new data pack as we had anticipated, we had to keep adding and removing to get up to the capacity that we needed to be. What should have been a one day process (or a few hours) turned into a month and a half process."
"The solution as it is right now is not very stable. The stability seems to have eroded."
"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."
"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."
"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."
"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."
"Snapshots are not as easy to access as on a NetApp device."
"We had just one small stability problem with power flapping and it did not start up again automatically."
"Dell EMC Unity XT has some scalability issues which they need to address."
"The price of this product can be more cost-effective."
"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."
"Unity only does compression. It would be nice if there was a deduplication feature as well."
"The virtual appliance is limited to 4TB in storage."
"VNX used to have some features that Unity still doesn't have, so the progress is not that advanced compared to what customers might expect."
"The interface can be a little challenging for someone new."
"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."
 

Pricing and Cost Advice

"Pure came in at a better price point than EMC and performed better than Compellent."
"Price per terabyte is substantially higher than their competition. We would like to see it drop."
"The price is too high."
"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."
"We feel that the pricing is fair and the licensing process was easy for both."
"I have had a couple of customers who have complained about the cost. It can be a little more expensive than some of the other platforms. After it has been installed, I have never had a customer say, "I wish we wouldn't have spent all that extra money." They have always been happy with the product after it has been installed. They might be on the fence about it because of the price, but everybody who I have ever seen install it, they are always happy with it."
"Because the price is a bit higher than other products, the data reduction equalizes the price with amount of the data reduction."
"Pure Storage has not helped us to reduce our licensing costs."
"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."
"When I see other products—like HP, Huawei, and Lenovo—from competitors, I have seen a lot of disadvantages with EMC, price-wise. Huawei and Lenovo are very price competitive. Looking at the price point for a country like Sri Lanka, where we have a very low economy, I think you need to look at a pricing mechanism that is a bit more flexible."
"It's the performance combined with the gig-per-dollar value. That combination is superior to other storage options."
"The license is not required, but we must renew the support every year, every two years."
"We looked at HPE Nimble but the price of the Unity XT was very good compared to the competition."
"It was easy to order. We are a big Dell shop, so it was easy to purchase and get it in place, then up and running."
"From an ROI perspective, I'll put it this way: When we've tried to buy other SANs, the Unity ROI makes it impossible to buy them. So usually, the only time we buy another SAN is when the ROI isn't a factor, because Unity can't do the job. From an ROI perspective, it's great because it beats everything else out. We've tried to look at other options but, at the end of the day, when you price it out, the Unity wins."
"It is a good return on investment."
"Licensing is a little bit confusing. Going through everything with them, there are a lot of line items to go over. Every single thing is broken down into a line item, and it starts to get really confusing in terms of what we're actually purchasing when it comes to the product."
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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.
894,830 professionals have used our research since 2012.