DDN IntelliFlash vs Dell Unity XT comparison

DataDirect Networks and Dell Technologies are both solutions in the All-Flash Storage category. DataDirect Networks is ranked #26 with an average rating of 9.0, while Dell Technologies is ranked #5 with an average rating of 8.6. DataDirect Networks holds a 0.9% mindshare in AFS, compared to Dell Technologies’s 5.7% mindshare. Additionally, 87% of DataDirect Networks users are willing to recommend the solution, compared to 96% of Dell Technologies users who would recommend it.

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Sep 18, 2024

DDN IntelliFlash and Dell Unity XT are competitive products in the storage solutions market. Dell Unity XT seems to have a superior feature set, making it worth the price for users despite pricing and support being favored for DDN IntelliFlash.

Features: DDN IntelliFlash offers high performance, advanced data management, and flexible configurations. Dell Unity XT provides comprehensive data protection, seamless cloud integration, and robust performance. Users find Dell Unity XT’s feature set more extensive, while DDN IntelliFlash offers notable efficiency.

Room for Improvement: DDN IntelliFlash users suggest enhancing integration capabilities and scalability options. Dell Unity XT users recommend better documentation and improvements in reporting tools. Both products have specific technical aspects needing enhancement to better meet user expectations.

Ease of Deployment and Customer Service: DDN IntelliFlash deployment is praised for simplicity and responsive customer service. Dell Unity XT deployment is straightforward but receives mixed reviews regarding customer service efficiency and support responsiveness.

Pricing and ROI: DDN IntelliFlash is seen as cost-effective with a quicker ROI, appealing to budget-conscious buyers. Dell Unity XT, while more expensive, offers strong long-term value and return on investment due to its advanced features. Pricing varies, but users find Dell Unity XT's higher cost justified by its capabilities.

To learn more, read our detailed DDN IntelliFlash vs. Dell Unity XT Report (Updated: December 2025).

Buyer's Guide

DDN IntelliFlash vs. Dell Unity XT

December 2025

Download the complete report

Helped 881,360 peers since 2012

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

Mindshare comparison

As of February 2026, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 1.5%, up from 0.7% compared to the previous year. The mindshare of DDN IntelliFlash is 0.9%, up from 0.4% compared to the previous year. The mindshare of Dell Unity XT is 5.7%, down from 8.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

All-Flash Storage Market Share Distribution
Product	Market Share (%)
Dell Unity XT	5.7%
Pure FlashArray X NVMe	1.5%
DDN IntelliFlash	0.9%
Other	91.9%

All-Flash Storage

Featured Reviews

Jaehoon Oh

Chief Technology Officer at Lambda256

Supports efficient storage management through volume snapshots and offers reliable non-disruptive upgrades

I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could be enhanced. I can see the performance statistics in the Pure Storage console, but it does not show the performance by 4K byte unit. It displays IOPS and bandwidth, but IOPS is about real use, and I want to know how many IOPS are currently running in 4K byte units. I cannot see that IOPS because most storage systems report their performance by 4K byte unit. I want to see Pure Storage performance by 4K byte unit to compare with other storage or other internal NVMe SSD.

Read full review

Anil Rahulwar

Storage Engineer at Movate

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.

Read full review

Deepak Kannan

Sales Account Manager - BFSI Sector at Frontier Business systems

Customer needs are addressed effectively with collaborative sales and service support

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. NetApp's FSA model 2750 comes with an inbuilt cloud tiering option. In the future, if Dell storages include this option, especially for Unity, it would help us target SME or medium enterprises for quicker closures and support the sales team.

Read full review

Quotes from Members

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

Pros

"We're able to get higher-density workloads on the same infrastructure, and we have a smaller physical footprint. The performance is excellent – during our test the bottlenecks are never on the X array, it just keeps picking up the pace to match what you need. The real-time visibility is a differentiator in my opinion."

"The Pure1 component is most valuable at this point in time when comparing it with EMC. Pure1 is where you can have your diagnostics in the cloud, so you can look at things from your mobile phone."

"It has good, reliable, fast storage."

"The most valuable features of Pure FlashArray X NVMe are its superior performance compared to other flash tiers, as well as its ease of use, with an intuitive user interface that is simple to deploy and use."

"Everything, especially the VMs inside, is pretty fast."

"On a scale of one to ten, I rate Pure FlashArray as ten."

"One of the best features is the support, which is excellent."

"Pure FlashArray X NVMe has low latency and high Ops. It is an evergreen model."

More Pure FlashArray X NVMe pros

"It has reduced our electricity usage by reducing the amount of disks needed for the virtual environment."

"EasyTier/hotcaching: Valuable because it allows greater performance than standard SAS disks"

"It performed great originally, and when it performed great, it was awesome."

"It's very fast. We were seeing read latencies of less than one millisecond. It is robust."

"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."

"Data Compression: Up to 80% space reduction in the database"

"The initial setup is straightforward."

More DDN IntelliFlash pros

"The Unity XT box is very strong. It doesn't break. The MTBF time is very large so you don't have to worry about faults or outages in your operations."

"It's easy to manage. We access it and manage it through Unisphere and have had no issues. We're able to provision storage, create consistency groups, create RDMs for our virtual machines. Creating it through Unisphere, it automatically adds the data store on the VMware side and rescans the LUNS. We just have to add and configure the storage in one place and it takes care of everything, which is very handy."

"Its quick integration with VMware. The ability to stand up a data store in one place, where you don't have to go and rescan for the data store through the vCenter Client, as well as SMB shares. This ended up being a big selling point for us."

"One of the things that I like the most about it is how they have changed the Unisphere GUI, and how it is now HTML5. It is so easy to use. Also, the array itself is so simple, easy to set up and easy to use, but it still has that great Dell EMC technology behind it."

"User friendly interface"

"The setup and installation procedures are easy."

"The most valuable aspects of this solution are its stability, performance, and ease of updating."

"Stable flash storage platform with good scalability, efficiency, and speed."

More Dell Unity XT pros

Cons

"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."

"Maybe the price can be reduced since the solution is very expensive."

"I want to see Pure Storage not only be for fast storage, but I want to see it be for the entire data center."

"Many options to check performance, like read, writes, random writes, and random reads, are missing in Pure FlashArray X NVMe."

"The tool's pricing is higher than competitors."

"The UI for this solution needs to be improved."

"If the customer only needs 500 terabytes and doesn't care how much data they'll put in the server, IBM is cheaper than Pure."

"Right now, the box itself is just strictly working as a backend storage system. It would be fantastic if we could access it directly like a NAS device through network access or SIS drives. I think they have an interface, but I am not sure how good it is. If we could address a box directly on the network without having to go through a server, it would be great. The replication schemas could be improved. We are not using replication on the storage level right now. We use a different type of replication. If their replication would be as good as the one that we have, I would probably run the replication schema because it might be faster, but I don't know that for a fact. So, I cannot say that they have good replication. All I can say is that they need to inform us better."

More Pure FlashArray X NVMe cons

"Performance is horrible now. Our original intent was to buy new storage in about two years. But since it became a critical urgency for us, we decided to purchase a new one in two or three months."

"Snapshots are not as easy to access as on a NetApp device."

"It's somewhat scalable, but maybe not so much as some of the competition."

"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."

"It only keeps one hour of real-time data without the ability to do deep analysis of each element."

"In future releases, I look forward to more AI features."

"Technical support is bad. It'd grade them at 30% or 40%. The response time is terrible."

More DDN IntelliFlash cons

"They should update to the cloud."

"Compression and block deduplication on non-all-flash solutions."

"The uses of tools to communicate with EMC directly. With EMC, I am not able to connect and resolve issues without assistance, so they can't do unattended maintenance on devices, which would be a massive benefit if they could."

"It's not as reliable as it should be, I think it was probably released a little early. We've had production problems with customers, and there are still some challenges at scale as well. Compression is a problem for the system. Once you enable dedupe and compression, the performance of the system, the capability, halves... It has to be right-sized and sized for compression, but even with that, because there are only two storage processors, you're ending up at almost 40 percent usage."

"Our customers are mostly happy with Unity except for the price. We primarily sell to enterprise companies because small companies cannot afford it."

"If there's anything Dell EMC could do to get the same performance for a cheaper price, that would be great."

"I have a problem because between the Unity XT and the PowerMax, sometimes we need another product between these two products. There could be better integrated and the capacity of the size could be larger."

"The product’s pricing should be improved."

More Dell Unity XT cons

Pricing and Cost Advice

"The support cost per array is about $20,000 a year for 24/7 support."

"We pay approximately $50,000 USD per year in licensing fees."

"With VMware, we pay $300,000 annually."

"Our licensing fees are $500,000+ USD."

"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."

"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."

"Pure FlashArray X NVMe’s pricing is cheaper than other products."

"As far as the licensing costs, everything is included in the license."

More Pure FlashArray X NVMe pricing and cost advice

"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."

"This product is cheaper than the EMC VNX solution. It is good for small businesses."

"Just from an overall power and heating usage, it costs substantially less than some of our existing solutions"

"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 of Dell Unity XT is good."

"At the end of the day, the licensing cost is key, because every customer has a pain point, that the cost of each piece is high. So if they would bundle everything in a package, that is how the competitors are selling their footprint."

"This solution is a good price for what you get."

"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."

"While it has a good price to start, they could always make it cheaper."

More Dell Unity XT pricing and cost advice

See which vendors are best for you

Use our free recommendation engine to learn which All-Flash Storage solutions are best for your needs.

See recommendations

881,360 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Computer Software Company

12%

Manufacturing Company

11%

Financial Services Firm

11%

Government

Computer Software Company

12%

Manufacturing Company

10%

Healthcare Company

Construction Company

Computer Software Company

14%

Manufacturing Company

12%

Financial Services Firm

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	15
Midsize Enterprise	11
Large Enterprise	12

By reviewers
Company Size	Count
Small Business	8
Midsize Enterprise	2
Large Enterprise	3

By reviewers
Company Size	Count
Small Business	62
Midsize Enterprise	49
Large Enterprise	94

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.

See all answers

What is your experience regarding pricing and costs for Pure FlashArray X NVMe?

The price of Pure FlashArray X NVMe is very expensive, though I do not know the actual price because I am using the E...

See all answers

What needs improvement with Pure FlashArray X NVMe?

I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could ...

See all answers

What is your experience regarding pricing and costs for IntelliFlash?

It is a bit cheaper than other products, 10% to 20% cheaper.

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

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...

See all answers

Comparisons

Dell PowerStore vs Pure FlashArray X NVMe

Compared 16% of the time

Dell PowerMax vs Pure FlashArray X NVMe

Compared 12% of the time

HPE Alletra Storage vs Pure FlashArray X NVMe

Compared 11% of the time

TrueNAS R-Series vs Pure FlashArray X NVMe

Compared 10% of the time

TrueNAS X-Series vs Pure FlashArray X NVMe

Compared 6% of the time

More Pure FlashArray X NVMe Competitors

VAST Data vs DDN IntelliFlash

Compared 27% of the time

NetApp AFF vs DDN IntelliFlash

Compared 10% of the time

Tintri VMstore T7000 vs DDN IntelliFlash

Compared 8% of the time

Dell PowerMax vs DDN IntelliFlash

Compared 8% of the time

More DDN IntelliFlash Competitors

Dell PowerStore vs Dell Unity XT

Compared 33% of the time

NetApp AFF vs Dell Unity XT

Compared 11% of the time

Pure Storage FlashArray vs Dell Unity XT

Compared 8% of the time

HPE Alletra Storage vs Dell Unity XT

Compared 5% of the time

More Dell Unity XT Competitors

Product Reports

Buyer's Guide

Pure FlashArray X NVMe

January 2026

Download Pure FlashArray X NVMe product report

Buyer's Guide

DDN IntelliFlash

January 2026

Download DDN IntelliFlash product report

Buyer's Guide

Dell Unity XT

January 2026

Download Dell Unity XT product report

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X

Tegile, IntelliFlash N-Series, IntelliFlash T-Series, IntelliFlash HD-Series

EMC Unity, Dell EMC Unity

Overview

Pure Storage FlashArray//X is the world’s first enterprise-class, all-NVMe flash storage array. It represents a new class of storage – shared accelerated storage, which is a term coined by Gartner – that delivers major breakthroughs in performance, simplicity, and consolidation.

Pure Storage

Western Digital through its IntelliFlash arrays delivers high-performance storage with a complete range of features and connectivity options, including inline compression and deduplication, application and VM consistent snapshots, replication, RAID, data encryption, VMware vCenter integration, and multi-protocol support for SAN (FC, iSCSI) and NAS (NFS, SMBv3). IntelliFlash arrays deliver high availability through dualredundant and hot-swappable components, active/active or active/passive controllers, non-disruptive software upgrades, eMLC flash, and proactive cloud-based monitoring, analytics, and intelligence. A RESTful API provides scripted or programmatic control.

DataDirect Networks

Dell EMC Unity XT is one of the best all-flash storage arrays on the market today. Dell EMC Unity XT arrays are designed for performance, optimized for efficiency, and built for a multi-cloud world. In addition, they support digital transformation, enabling businesses to reach the full potential of their data capital quickly and easily. Dell EMC Unity’s All-Flash and Hybrid Flash storage platforms provide the performance, efficiency, enterprise-class software, and virtualization integrations required for running a wide range of virtualized applications.

Dell EMC Unity XT Features

Dell EMC Unity XT has many valuable key features, including:

Unified storage flexibility: With Dell EMC Unity XT you can consolidate separate storage platforms into a single Unity XT unified storage system via a simple and intuitive (HTML5) management GUI that also connects you to CloudIQ.
All-inclusive data protection: Dell EMC Unity XT offers a reliable way to protect application data with all-inclusive data protection services, including snapshots, data-at-rest drive encryption, replication, thin clones, and dynamic pools.
Software-defined solutions: Dell EMC Unity XT provides software-defined storage and HA for on-prem and in the cloud solutions.
Multi-cloud alignment: With Dell EMC Unity XT you have the ability to build and manage an effective data-first multi-cloud strategy. It allows you to consolidate public and private cloud resources that align with your business goals.
Metro node: This feature enables automated business continuity with zero RPO and RTO. It also provides greater flexibility through multi-platform support and replication to any array and has zero performance impact on the storage array.
Scalable file system: Dell EMC Unity XT is built with a robust 256TBu file system. The UFS64 file system includes up to 256 independent VMDK clones, 16 thin clones, space efficient snapshots with a simple space reclaim and low IO impact, file system shrink that can reclaim free blocks, simplified Quotas for User, and much more.
DevOps integrations: Dell EMC Unity XT supports the Container Storage Interface (CSI) plugin to run Kubernetes workloads.

Dell EMC Unity XT Benefits

Some of the benefits of using Dell EMC Unity XT include:

High-speed data access
Low latency
Dual-active controller architecture
Multi-cloud
Intuitive user interface
Cost efficient
Solid performance

Reviews from Real Users

Below are some reviews and helpful feedback written by Dell EMC Unity XT users.

A Systems Engineering Manager at a manufacturing company says, "It is definitely one of the most robust, solid, well-performing products that I have dealt with. It is set it and forget it, which is pretty amazing." He also mentions, “We can do both block and file storage on one unit without purchasing a separate device.”

Peter S., Senior Technical Specialist at a healthcare company, states, “The most valuable feature is reliability. At the end of the day, it just runs. This solution is easy to work with and easy to maintain.”

PeerSpot user Melvin T., Senior Systems Engineer at Prosperity Bank, explains that the solution is “easy to use and we can add LUNs or space without interruption to end-users. We're able to access it from just about anywhere, as long as we have access to a browser. That feature is really neat because sometimes we will go to a different data center or a different site, and if we need to access it to see a LUN or to see any type of storage, we can do that. That's one of the big takeaways with Unity."

Dell Technologies

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company

Bank of Stockton, Barnsley College, Boyes Turner, Brigham Young University

Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre

Buyer's Guide

DDN IntelliFlash vs. Dell Unity XT

December 2025

Free Report: DDN IntelliFlash vs. Dell Unity XT

Find out what your peers are saying about DDN IntelliFlash vs. Dell Unity XT and other solutions. Updated: December 2025.

DOWNLOAD NOW

881,360 professionals have used our research since 2012.

See our DDN IntelliFlash vs. Dell Unity XT report.

See our list of best All-Flash Storage vendors.

We monitor all All-Flash Storage reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.