Dell Unity XT vs VNX [EOL] comparison

Why PeerSpot?

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: September 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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Taj Hussain

Assistant Manager, Technology Support & Services at a comms service provider with 51-200 employees

Managing data protection has become consistent and analytics now drive reliable performance

The most valuable features I find in Dell Unity XT include its robust performance and reliability. My thoughts about its in-line deduplication feature are positive. I would assess the value of Dell Unity XT multi-cloud support for my IT environment as highly beneficial. I do utilize Dell Unity XT data protection features. These features have assisted in ensuring data integrity by providing reliable backup and recovery options. Dell Unity XT integration with VMware helps scalability and availability through seamless operations and enhanced performance. My opinion on its Cloud IQ analytics is that it delivers insightful data that aids in operational efficiency.

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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.

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

"Having an intuitive user interface to get things running is great."

"The management features are well organized and they have a very good dashboard."

"The mobile app is very helpful."

"With Pure Storage FlashArray we have been able to deploy several thousand VDI servers, virtual machines, very quickly and efficiently."

"The solution is very reliable."

"It is an SSD array that has awesome performance, low submillisecond latency, and does what it is supposed to do. It just works, which is difficult for things to do anymore."

"The scalability is good."

"We have perfect run through times and latency."

More Everpure FlashArray pros

"We have seen a huge performance increase due to all-flash that is beyond what was anticipated."

"The initial setup is very easy. I would rate my experience with the initial setup a nine out of ten, with one being difficult and ten being easy."

"This is a great storage solution and a product that I recommend."

"We are satisfied with the technical support."

"It is easy to set up the solution."

"The fact that it reduces our downtime gives us incredible cost savings."

"The setup was quite easy, straightforward."

"In my all installations, customers were very satisfied."

More Dell Unity XT pros

"VNX 5200 works well with a medium VMware cluster, has good performance, and enables hardware disk replication."

"It’s amazing, you can add and stack, and add more elements."

"One thing I would like to explicitly mention here is the EMC support; it is by far one of the best supports you will ever get in comparison with any vendor."

"The replication feature provides another functionality to protect your data."

"It is very stable even during multiple power failures."

"From my point of view, the configuration that I can sell is restricted to the EMC best practices. It is hard to make a mistake in a solution. It means the configuration has good performance and scalability options."

"I have worked on CLARiiON and all series of VNX."

"Tiering, because it allows your data to dynamically move among different disk types based on demand in the last 24 hours."

More VNX [EOL] pros

Cons

"I think replication is one area that still needs improvement."

"Pure Storage will have issues with positioning in the near future since its a relatively new company. For now, customers need a PoC to trust using the solution, as it can't stand on its brand name alone. They need to improve Pure Storage's marketing."

"We have not had a good experience with the IBM device."

"The scalability of the solution is not as good as it probably could be."

"Just some nit picky stuff, like allowing servers and volumes to be grouped. Therefore, it would easier to work with them in the GUI."

"We understand that they're thinking about it, but one of the things that would be nice is if they added some basic file-level capabilities to the platform. The idea is that they would run a basic NFS or CIF share from the controllers. FlashBlade is the powerhouse for File and Object storage, but if you don't need all that power, a lightweight file function would make FlashArrays more versatile."

"The main disadvantage of Pure Storage FlashArray is the price."

"Pure Storage FlashArray could improve by being more secure."

More Everpure FlashArray cons

"My only complaint would be some of the CLI Help files could be a little more detailed, but that's very minor complaint. We were trying to run some commands just to see how the storage snaps were interacting with the storage array, and it was a little difficult to look up exactly what commands should be run. The Help files detailing what exactly the commands did wasn't as detailed as we would have wanted them to be."

"I would like to see more compression and deduplication added to the solution. Today, our compression is about 2:1 and other solutions give us about 4:1 or 5:1."

"Scalability is not good. We have a Unity 300, now we have to do a data-in-place conversion for the next upgrade because only 150 slots are supported, not drives, only slots."

"It should be lighter. It takes up a ton of rack space. It would be nice to have a smaller footprint."

"Dell could improve Unity XT by adding support for NVMe."

"The NAS capabilities of Unity - I have to say there are a lot of things I miss. For example, deduplication for hybrid."

"The pre-sales technical support and technical engagement could be made better for this product."

"Ordering is easy, but the processing site and working with those companies was difficult."

More Dell Unity XT cons

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

"The performance impact snapshotting had on the cluster was enormous. The entire cluster performance took a performance impact of about 30% as soon as we created one snapshot of all the volumes created on the cluster."

"We actually had data loss from too many simultaneous drive failures on the 7500."

"They may change the disks from NL-SAS to Flash, but it would be costlier for customers."

"As an entry level array, this is just right, but adding support for FAST-VP would be beneficial although that feature is available on the higher end VNXe3200."

"The migration process was very complex."

"There is an easy replication process between distinct data centers via VPLEX and/or RPA. But I hope in the future that EMC/Dell could replicate this with other types of storage."

"So far we haven't had many issues with the VNX. However, the Data Mover (that manages CIFS/NFS) part needs some improvements."

More VNX [EOL] cons

Pricing and Cost Advice

"There are no fees for licensing. The hardware is paid for only once."

"The best features come included without any additional cost."

"The price of the solution is not expensive."

"We feel that the pricing is fair and the licensing process was easy for both."

"It's expensive, but you get what you pay for."

"FlashArray is expensive, but the quality justifies the price."

"The price of Pure Storage FlashArray is expensive."

"We have seen a reduction in TCO."

More Everpure FlashArray pricing and cost advice

"The pricing is competitive. We miss some of the feature functionality that we had with the XtremeIOs but it's certainly suitable for the purpose."

"Here is our major complaint with pricing. Dell EMC comes to us and gives us a price. We are like, "Well, this doesn't even compare to what we got on the last project." We say, "No, you should bring it down to this level." Then, they come back again and we are sort of in the middle again. I am like, You already sold us other stuff at a better price. We are not going to just say, 'Yes,' because we are out of time.""

"The product’s pricing should be improved."

"The Dell EMC Data Protection license covers everything, like a one stop shop. All our options are covered."

"When you look at what Dell EMC is compared to, like NetApp, they're all priced pretty similarly. I think the pricing of the hybrid model is good."

"As far as licensing goes, I love how VMware works with Dell EMC Unity. It's great. They work hand in hand. They have made it so simple."

"For costing, you have to have a budget in mind because SANs can be fairly expensive and EMC offers a wide range of products."

"Compression is making a difference towards the amount of hardware that we need to purchase."

More Dell Unity XT pricing and cost advice

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

"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."

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

"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."

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

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

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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

12%

Financial Services Firm

10%

Comms Service Provider

Construction Company

Outsourcing Company

14%

Manufacturing Company

Financial Services Firm

Computer Software Company

Construction Company

17%

Outsourcing Company

15%

Financial Services Firm

13%

Manufacturing Company

11%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	71
Midsize Enterprise	38
Large Enterprise	159

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?

I find the pricing of Everpure FlashArray to be quite high compared to other storage solutions; however, the reliabil...

See all answers

What needs improvement with Pure Storage FlashArray?

I believe we have covered the most important features; the architecture of Pure Storage is essential, and features su...

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

September 2026

Download Everpure FlashArray product report

Buyer's Guide

Dell Unity XT

September 2026

Download Dell Unity XT product report

Buyer's Guide

VNX [EOL]

August 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: September 2026.

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