DDN IntelliFlash vs Nutanix Unified Storage (NUS) comparison

DDN IntelliFlash vs. Nutanix Unified Storage (NUS)

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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 September 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 1.0%, up from 0.7% compared to the previous year. The mindshare of DDN IntelliFlash is 0.6%, up from 0.4% compared to the previous year. The mindshare of Nutanix Unified Storage (NUS) is 0.7%, up from 0.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.

All-Flash Storage Market Share Distribution
Product	Market Share (%)
Nutanix Unified Storage (NUS)	0.7%
Pure FlashArray X NVMe	1.0%
DDN IntelliFlash	0.6%
Other	97.7%

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.

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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.

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Amarnath Charugundla

System Engineer at Tata Consultancy

Unified management and cost-effectiveness lead to positive experiences and future savings

Improvement is necessary wherein the memory or storage should not breach 90%, because if breached, it becomes unmanageable. We have to set alerts or CPU triggering for 95% for the first warning. Other activities on nodes or file systems should be properly maintained. We must monitor the dashboard for P1, P2 alerts in the Nutanix Unified Storage (NUS) file share system including SMB, NFS, objects, and blocks. Attention should be maintained for any alerts such as CPU, memory, and RAM alerts, as exceeding these creates issues within teams. If triggered to 95% and forgotten, it crosses the SLA breach, causing disturbances to application, web, and platform teams. Continuous monitoring on the Nutanix dashboard is essential. Even a highly experienced person in Nutanix Unified Storage (NUS) cannot provide a 10 rating out of 10 because it is a vast system. I would rate it eight from my perspective.

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Quotes from Members

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

Pros

"Overall stability is very good. It is a very stable solution."

"The latency is good."

"Pure Storage has signature security technology, which cannot be deleted, even if you are an administrator."

"It offers competitive performance, and the Evergreen storage model of Pure fits well with my organization."

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

"The high availability of the product is the most valuable feature."

"The database workloads are pretty fast because I frequently move data from here to there."

"The initial setup was extremely simple and straightforward."

More Pure FlashArray X NVMe pros

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

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

"It provides a combination of all the protocols that you need, without losing deduplication and compression."

"The initial setup is straightforward."

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

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

"High performance and ease-of-management are the most valuable features."

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

More DDN IntelliFlash pros

"The reliability and availability are the most valuable features. Reliability is important because it can run my workloads. I need to be able to take advantage of the VMs that are executing on the storage. It has to be reliable. It's also important to have the storage available for scaling VMs on demand."

"Redundancy and availability are valuable. We have several nodes, so it stays up, and there is redundancy. Then there is availability."

"Nutanix Unified Storage is a stable solution that provides good storage and efficiency."

"Nutanix technical support is excellent, with swift responses based on priority."

"The best Nutanix Unified Storage features are its recovery and data speeds. It has resolved the issue of accessing information quickly."

"Some of the features that we use include replication and snapshot capabilities, especially from remote locations to our data centers. The main benefit our company sees from using Nutanix Unified Storage is simplification. In the past, we used three-tier solutions with a lot of complexity and operational overhead. Now, we want to focus on the layers above. I want to have storage available, but I don't want to have to think about it. I want it to work without any issues."

"Based on my experience, I rate Nutanix Unified Storage (NUS) ten out of ten."

"The feature I like most about Nutanix Unified Storage (NUS) is the ability to optimize storage spaces."

More Nutanix Unified Storage (NUS) pros

Cons

"You cannot tag a LUN with a description, and that should be improved. What I like on the Unity side is that when I expand LUNs or do things, there is an information field on the LUN. This is the Information field that you can tag on your LUNs to let yourself know, "Hey, I've added this much space on this date". Pure lacks that ability. So, you don't have a mechanism that's friendly for tracking your data expansions on the LUN and for adding any additional information. That's a downside for me."

"Efficiency improvements would always be welcome, but I'm not sure if they could get more efficient."

"It feels more suitable for small and medium-sized businesses rather than enterprises."

"The tool's portfolio is minimal. It is expensive."

"There is room for improvement in the pricing of the product."

"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."

"In the future, I would like to see integration with enterprise backup systems."

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

More Pure FlashArray X NVMe cons

"They need to offer better integration for a virtual platform to enable you to create hyper-converged solution."

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

"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."

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

"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."

"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."

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

More DDN IntelliFlash cons

"There is some confusion in the reporting when I have to create the report for statistics. I find it is not so user-friendly."

"The current hardware is not as dense as it could be. In our deployment, we have 2 PB per site, and we have to have 24 nodes. That's a lot of cabling and network ports that we use up. More dense nodes would be better."

"The feature request I have is for the consistent improvement of how user account permissions are assigned in Nutanix Unified Storage."

"The interface is not logical. It should be a little simpler."

"The solution should increase its storage capabilities."

"I have heard that there have been latency problems."

"Nutanix could improve the ability to track user actions, such as identifying who deleted a folder."

"There should be more information. If it gets used more by more people, they will have a bigger community to share ideas. It is still kind of newer. It is not as big as Dell and other companies."

More Nutanix Unified Storage (NUS) cons

Pricing and Cost Advice

"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."

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

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

"Its price could be better. It is not too expensive, but it is the high-end cost. It is kind of a Rolls-Royce. You pay a lot, but you get a lot out of it. So, the price pressure on the way down would be great, but at the end of the day, if you need to do the work, you just pay for it."

"The licensing is on a yearly basis."

"Given its price, Pure is not the first option."

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

"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."

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."

"Nutanix's pricing is definitely much better when compared to other storage providers. That was one of the main reasons we switched to this platform."

"I am not the one who makes the calls, but it seems to me that it was very competitive. Other solutions would have required dedicated hardware, so an additional CapEx has to be put in place. In that sense, it was definitely a more competitive option to go with Nutanix Files."

"Nutanix Unified Storage isn't expensive."

"It is very good. It is much more competitive than a dedicated storage platform."

"Its pricing is good to okay. It is not super inexpensive, but it is still competitive. Everything could always be lower."

"The cost of Nutanix Unified Storage can be prohibitive for some small and medium-sized businesses, making it challenging for them to adopt the product."

"Nutanix Unified Storage pricing is reasonable."

"The solution's pricing is better compared to other products."

More Nutanix Unified Storage (NUS) pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

14%

Manufacturing Company

10%

Financial Services Firm

10%

Government

Computer Software Company

14%

Manufacturing Company

10%

Government

Financial Services Firm

Computer Software Company

30%

Manufacturing Company

Educational Organization

Financial Services Firm

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	26
Midsize Enterprise	30
Large Enterprise	63

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.

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...

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 ...

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 do you like most about Nutanix Unified Storage?

Nutanix has excellent product documentation available on their portals, written in simple, easy-to-understand language.

What is your experience regarding pricing and costs for Nutanix Unified Storage?

It is very cost-effective compared to the traditional environment. With new hardware, it's a long-term investment but...

What needs improvement with Nutanix Unified Storage?

The cybersecurity features are used for protecting unstructured data against threats such as ransomware.

Dell PowerStore vs Pure FlashArray X NVMe

Comparisons

Compared 24% of the time

TrueNAS R-Series vs Pure FlashArray X NVMe

Compared 16% of the time

Dell PowerMax vs Pure FlashArray X NVMe

Compared 13% of the time

Pure Storage FlashBlade vs Pure FlashArray X NVMe

Compared 11% of the time

HPE Alletra Storage vs Pure FlashArray X NVMe

Compared 10% of the time

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VAST Data vs DDN IntelliFlash

Compared 47% of the time

NetApp AFF vs DDN IntelliFlash

Compared 25% of the time

Pure Storage FlashBlade vs DDN IntelliFlash

Compared 16% of the time

Pure Storage FlashArray vs DDN IntelliFlash

Compared 12% of the time

More DDN IntelliFlash Competitors

Red Hat Ceph Storage vs Nutanix Unified Storage (NUS)

Compared 14% of the time

Dell PowerScale (Isilon) vs Nutanix Unified Storage (NUS)

Compared 13% of the time

Microsoft Storage Spaces Direct vs Nutanix Unified Storage (NUS)

Compared 10% of the time

MinIO vs Nutanix Unified Storage (NUS)

Compared 9% of the time

Amazon S3 vs Nutanix Unified Storage (NUS)

Compared 6% of the time

More Nutanix Unified Storage (NUS) Competitors

Product Reports

Pure FlashArray X NVMe

Download Pure FlashArray X NVMe product report

Download DDN IntelliFlash product report

DDN IntelliFlash

September 2025

Nutanix Unified Storage (NUS)

Download Nutanix Unified Storage (NUS) product report

Also Known As

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

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

Nutanix Files Storage, Nutanix Volumes Block Storage, Nutanix Objects Storage

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

Nutanix Unified Storage provides high availability and seamless cloud platform integration, ensuring robust redundancy, scalability, and streamlined management. It supports hybrid cloud connectivity, enhancing storage security and performance.

Nutanix Unified Storage is designed for effective data protection across block, file, and object storage, offering features like ransomware detection and a centralized management interface through Prism Central. Users gain improved SLAs and IT cost savings through its efficient performance. Despite its user-friendly interface, there is a demand for enhanced security measures such as Multi-Factor Authentication and DLP. While its resilience is notable, users seek improvements in protocol compatibility, storage capabilities, pricing, and support processes.

What are the most important features of Nutanix Unified Storage?

User-Friendly Interface: Simplifies storage management and monitoring.
High Availability: Ensures continuous operation and reliability.
Seamless Cloud Integration: Compatible with platforms like Azure and AWS.
Robust Redundancy: Protects data against hardware failures.
Scalable Architecture: Easily adapts to growing data storage needs.
Ransomware Detection: Enhances data protection measures.

What benefits and ROI might users find in reviews?

Improved SLAs: Increased service reliability and performance.
IT Cost Savings: Reduces expenses through efficient resource use.
Enhanced Security: Stronger data protection and reduced risk.
Centralized Management: Easier control and monitoring from one dashboard.

Industries implement Nutanix Unified Storage for tasks such as file storage, database performance improvement, and storage solution consolidation. Companies deploying virtual machines, securing against ransomware, connecting hybrid clouds, and backing up data find it useful. It supports workloads like Citrix VDI, Kubernetes, and research data, assisting many organizations migrating from legacy storage for better cost efficiency and reduced data center footprints.

Nutanix

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company

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

JetBlue, International Speedway Corporation, Volkswagen SAIC, Brighton and Hove City Council, Foresters Financial, Janus International Group, Cloud Comrade, Serco

DDN IntelliFlash vs. Nutanix Unified Storage (NUS)