Dell Unity XT vs VNX [EOL] comparison

Dell Unity XT and VNX [EOL] are both solutions in the All-Flash Storage category. Additionally, 96% of Dell Unity XT users are willing to recommend the solution, compared to 87% of VNX [EOL] users who would recommend it.

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Executive Summary

We performed a comparison between Dell Unity XT and VNX [EOL] based on real PeerSpot user reviews.

Find out what your peers are saying about Dell Technologies, NetApp, Everpure (formerly Pure Storage) and others in All-Flash Storage.

To learn more, read our detailed All-Flash Storage Report (Updated: May 2026).

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May 2026

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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

Everpure FlashArray

Q&A Highlights

it_user752949

Principal Architect with 1-10 employees

Dec 03, 2017

EMC VNX 2500 or EMC Unity 400. Which one is the newer and better Storage and why?

Unity is the new generation of VNX boxes, some refer it to as VNX3. The old VNX 2500 is already EOL since Dec 2014. So in this case Unity 400 is newer and better.

See all answers

Featured Reviews

Sowjanya MV

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.

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Dhandayudapani C

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.

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Alireza Zabihi

Works at AIT

The Nimble CS-Series has proven to be reliable with 100% uptime

When we started the process of looking for a SAN vendor I had four primary criteria: reliability, performance, cost, and simplicity. We were really looking for a unicorn and were fully expected to have to make compromises in one of those areas. The Nimble CS-Series was recommended by our solutions provider, and we were blown away. Not only was it the most affordable option, but it was the easiest to deploy, had the best performance, and has proven to be reliable with 100% uptime.

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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

"There is no comparison performance-wise."

"The predictive performance analytics are good."

"I like the performance. Performance-wise, it accommodates the needs of highly-critical servers. It is reliable."

"The best features Everpure FlashArray offers are its ease of setup and incredible performance, which is better than most other software or hardware that we have used."

"The solution is easy to scale. I'm running two environments right now, so I need to scale. I'm running a part technology. I've got an A-side and a B-side."

"Everpure FlashArray is probably not cheap storage, but it provides great performance, scalability, and everything a customer needs."

"In comparison to the competitors, Pure is very price-competitive for the future functionality that it provides."

"Now with Pure Storage, our developers work a lot faster and more efficiently which has definitely improved our productivity."

More Everpure FlashArray pros

"The solution allows for easy, useful replication with good features for VPLEX and VIVO."

"What they really like is the easy licensing now - Dell EMC has caught up to a lot of their competitors - based on not having to charge for everything, and they can get everything in one bundle."

"Deduplication is the biggest thing for our company."

"Integration; We use the product with VMware, and also use it with Syft for home directory and departmental shares."

"We use the Unity as the SAN for our data center; it's where all of our data lives right now for our main office, and it has exceeded our expectations."

"Compared to older generations of arrays there is quite an improvement, compared to the older VNXs, for example. It depends on you use it, but for our purposes, we find Unity simple to use."

"We've never had an issue with storage."

"The return on investment is in the fact that it meets all of our storage needs and in the ease of expanding it."

More Dell Unity XT pros

"EMC storage has the best performance and functions."

"Multi-tiering, positively affects the efficiency of the storage space."

"It is a great product: scalable, reliable, and robust."

"I think it's a good solution; it has many benefits and features that are of interest for many customers."

"Integration with VMware"

"Depending on how simple the customer needs it to be, might sway my recommendation one way or the other, but in terms of functionality, VNX is very very good."

"FAST auto-tiering is a great feature."

"It is a good product with a simple setup and easy administration."

More VNX [EOL] pros

Cons

"One thing I'd like to see in a future release is integration between their main storage array and what they call their FlashBlade product; to be able to snapshot directly from the primary array into multiple different backup copies on FlashBlade."

"They need to find another way of doing data protection, RAID is not working very well."

"The system has dual controllers but does not have a high level of resiliency built-in."

"We haven't seen ROI yet."

"Regarding documentation, it would be helpful if we could have access to the root passwords for administrative tasks."

"It is a bit expensive."

"There was some complexity in the initial setup."

"Pure Storage's logs could provide more visibility to the end-user. The logging algorithms are different from those of other vendors. For example, Cisco's logs provide extensive troubleshooting data, whereas Pure Storage logs offer limited information. We have to contact support to get more information."

More Everpure FlashArray cons

"The initial setup is not so straightforward if you don't have experience with storage arrays."

"The payment account area."

"We have had a lot of issues. We've got massive issues at the moment with IBM AIX, it's not stable, we have a lot of disk errors, production crashes sometimes, and that's not good for a retailer."

"The only thing that could improve it would be a price reduction."

"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."

"Sometimes the response time is higher than expected due to a lack of issues."

"Having used EMC products for more than 15 years, this is the first product in that time that I could find nothing to like."

"Some of the other data-reduction technologies, like deduplication, are not to the level of other competitors and what their products provide."

More Dell Unity XT cons

"Due to very complex structure and sophisticated architecture, it needs experts for trivial troubleshooting also."

"I do not recommend the Gen 1 VNX to anyone in this day and age."

"Intel Xeon processors with under 2 GHz processing speeds could be replaced with more recent ones."

"Make major changes to the file services, Celera, do something like a lite version."

"You need a lot of licenses in order to use this product, which makes the product expensive; the maintenance contract price also increases significantly every year."

"VNX can improve by offering flexible upgrade options."

"EMC VNX needs to support bigger SSD and the Next Generation EMC Unity does this."

"It only supports 10Gb copper, and cannot do 10Gb fiber."

More VNX [EOL] cons

Pricing and Cost Advice

"Pure Storage has not helped to reduce our HANA licensing costs."

"You can pay extra for Evergreen support, which gives you free upgrades when new features are introduced."

"Our licensing is on a yearly basis. So, every year, we renew. We could do a three-year contract, but right now, we only do a one-year."

"The cost has room for improvement."

"My organization has a yearly license, but I believe that Pure Storage FlashArray has capacity-based licenses as well. I'm definitely happy with the pricing."

"It is light years beyond anything else with the same price point."

"The Evergreen Storage subscription is great, because then I get new controllers every three years."

"I don't know the exact cost but it's around $1,000."

More Everpure FlashArray pricing and cost advice

"Our costs are roughly $200,000 a year."

"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."

"The solution is very expensive."

"The pricing of Dell Unity XT is good."

"Licensing is easy since all the software is included."

"Licensing is fine. We worked with a sales rep to purchase our Unity."

"The pricing was quite okay compared to others. We probably got it cheaper because we were the first ones out of the gate, but I would say that it's good value for the money."

"The product’s pricing should be improved."

More Dell Unity XT pricing and cost advice

"Make sure you understand how the licensing works and that you are getting the right set of licenses if you need array-to-array replication."

"Reducing dependency on JavaServer Pages (JSP) could improve the administrative overhead."

"The initial pricing and licensing are reasonable, the yearly EMC is more expensive"

"Pricing is somewhat higher, especially in Zambia, perhaps due to the low sales volume."

"Over time, VNX has become pricier than its competitors, and we have turned enthusiastically to Unity."

"The initial pricing and licensing are reasonable. Yearly EMC is more expensive."

"While EMC tends to be on the expensive side, the stability and support of their products are top-notch and I feel are worth the cost."

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Answers from the Community

it_user752949

Principal Architect with 1-10 employees

Dec 3, 2017

EMC VNX 2500 or EMC Unity 400. Which one is the newer and better Storage and why?

Unity series is re-engineered VNX, so the Unity is newer … it makes better use of flash, active – active , dual controller mode; better price point , configurations solid upgrade from the VNX

2 out of 21 answers

Chris Tunnah

Business Development Manager at a tech services company with 51-200 employees

Oct 31, 2017

The VNX range is older and is being phased out. I think you mean VNX 5200? That said the Unity 400 is the better investment as it is newer, cheaper to support, faster, and with higher capacity and bigger supported file system size.

Read full answer

it_user281856

Advisory Systems Engineer at a tech vendor with 1,001-5,000 employees

Oct 31, 2017

Hope this helps: http://virtualgeek.typepad.com/virtual_geek/2016/05/emc-world-2016-unity-the-story-behind-the-story.html

Read full answer

See all 21 answers

Top Industries

By visitors reading reviews

Manufacturing Company

14%

Financial Services Firm

12%

Construction Company

10%

Computer Software Company

Manufacturing Company

11%

Computer Software Company

10%

Financial Services Firm

Construction Company

19%

Manufacturing Company

14%

Financial Services Firm

13%

Outsourcing Company

10%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	69
Midsize Enterprise	37
Large Enterprise	157

By reviewers
Company Size	Count
Small Business	62
Midsize Enterprise	48
Large Enterprise	96

By reviewers
Company Size	Count
Small Business	5
Midsize Enterprise	6
Large Enterprise	23

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...

See all answers

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

There were no issues with pricing, setup cost, and licensing.

See all answers

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.

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...

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Product Reports

Buyer's Guide

Everpure FlashArray

June 2026

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Buyer's Guide

Dell Unity XT

June 2026

Download Dell Unity XT product report

Buyer's Guide

VNX [EOL]

May 2026

Download VNX [EOL] product report

Also Known As

Pure Storage FlashArray

EMC Unity, Dell EMC Unity

VNX

Overview

The FlashArray family delivers consistent, high-performance data services across block, file, and object workloads. As part of the Everpure Platform, it provides the foundation for a unified data plane, enabling applications to reliably access, protect, and manage data across environments with simplicity and predictability. With built-in capabilities such as inline data reduction, snapshots, replication, and ransomware resilience, FlashArray ensures efficient operations, protected data, and consistent application uptime.

As the foundation of the (unified) data plane, FlashArray enables policy-driven automation, monitoring, and centralized management while integrating across cloud and on-premises environments. Built on an Evergreen architecture, it supports non-disruptive upgrades and continuous performance improvements over time while simplifying operations at scale.

What Key Features Does FlashArray Offer?

Simplicity and Speed: Easy management and rapid performance enhancements.
Data Reduction: Effective deduplication and compression.
Flash Architecture: Seamless upgrades and outstanding resilience.
VMware Integration: Excellent compatibility with virtualization platforms.
Predictive Analytics: Strong insights for proactive management.

What Benefits Should Users Consider?

Reliability: Proactive support with minimal downtime.
Efficiency: Reduced storage footprint and enhanced data management.
Performance: Faster processing speeds and low latency.
User Experience: Simplified management with Evergreen model.

In industries like finance, banking, and healthcare, FlashArray supports high-performance storage needs focusing on virtualization and database environments. Employed for VMware workloads, disaster recovery, and storage provisioning, it ensures application performance in private or hybrid cloud setups while enhancing management of virtualized environments.

Everpure (formerly Pure Storage)

Dell Unity XT is renowned for its ease of use and management, high performance with all-flash arrays, and seamless integration with VMware. It's appreciated for robust data replication, multi-protocol support, inline compression, and deduplication capabilities, ideal for mid-range storage needs.

Known for its advanced HTML5 interface, Dell Unity XT offers unified block and file storage with rapid deployment and efficient storage utilization. Its scalability and cost-effectiveness make it appealing to users transitioning from older systems. The system supports databases like Oracle and SQL, alongside serving as network-attached storage (NAS). While recognized for performance, integration, and reliability in virtual environments, its deduplication, compression, and support quality are areas flagged for enhancement. There's a desire for improved synchronized replication and monitoring capabilities, enhanced VMware compatibility, and active-active controller functionality. Native cloud integration and better pre-sales support are also anticipated by users.

What are the main features of Dell Unity XT?

VMware Integration: Seamless operation within VMware environments.
Data Replication: Reliable and robust data replication features.
All-Flash Arrays: High-performance storage solution with all-flash capabilities.
Multi-Protocol Support: Flexible support for various storage protocols.
HTML5 Interface: Advanced and efficient management interface.

Where can users find ROI when evaluating Dell Unity XT?

Performance Optimization: Enhanced storage performance for demanding applications.
Scalability: Easily scales to meet growing business requirements.
Cost-Effectiveness: Competitive pricing for mid-range storage solutions.
Seamless Integration: Works smoothly with existing IT infrastructure.
Reliable Data Management: Secure and efficient handling of critical data.

In sectors relying heavily on virtualization and data-intensive applications, Dell Unity XT serves as a vital component in data centers. It plays crucial roles in hosting virtual machines, supporting extensive databases, and providing robust network-attached storage. This adaptability makes it a favored choice for organizations transitioning from traditional storage systems.

Dell Technologies

With EMC VNX you'll have the right blend of flash, capacity, and application-aware software. Scale up storage for midrange workloads, optimized for virtual applications and cloud environments.

Dell Technologies

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas

Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre

Samsonite, Comanche County Memorial Hospital, Kindred Healthcare

Find out what your peers are saying about Dell Technologies, NetApp, Everpure (formerly Pure Storage) and others in All-Flash Storage. Updated: May 2026.

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