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, Everpure (formerly Pure Storage), Hewlett Packard Enterprise and others in All-Flash Storage.

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

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October 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.

Read full review

Taj Hussain

Team Lead, Technology Support & Services at ibl-unisys

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

"Their support is top-notch, and their NPS scores reflect this."

"Pure Storage FlashArray offers numerous valuable features, such as low latency and high throughput."

"We have seen savings in our storage, and the speed of deployment has gone from several days to a few minutes, reducing backup and restore times from 93 days to minutes and simplifying storage for us."

"We are finding the TCO of flash to be lower than SSD implementations."

"We also use VMware integrations developed by Pure, their plugins in our vCenter environment. They help by allowing our non-technical operations teams to deploy new data stores and resize data stores without me having to involve myself all the time to do those simple tasks."

"The first set up we had was really straight forward and simple."

"Pure Storage FlashArray has helped us to improve the reporting and the billing cycle."

"I find two features of Pure Storage most valuable. The first is the "safe mode" function, and the second is its simplicity."

More Everpure FlashArray pros

"It's easy to use, easy to manage, easy to troubleshoot, and the process support is good."

"All-flash is a game changer. If you need performance, simple operations, and you plan to use it with VMware, it is a good choice."

"For me, the best thing is the reliability."

"It is easy to set up the solution."

"As far as how Dell EMC Unity XT has performed, I don't think I've ever seen latencies above 10 milliseconds, unless it was something that wasn't the array that was messing up."

"The compression and deduplication that will be coming in version 4.3. With just those features, you're reducing the amount of data and the footprint on the hardware."

"Deduplication is the biggest thing for our company."

"My advice is to take this solution."

More Dell Unity XT pros

"We moved from CX with FC/SATA to VNX with SSD, SAS, NL-SAS and using SSD as Fast Cache we have seen huge performance gains in certain operations."

"The most valuable feature is the auto-tiering, which helps in the speed of data access."

"I really value deduplication and compression to save space."

"It has a good, high-level of storage."

"FAST auto-tiering is a great feature."

"FAST (auto-tiering): Doesn't require configuration and is managed by the array itself."

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

"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."

More VNX [EOL] pros

Cons

"Larger capacity and more storage ports would be the two things I'd like to see."

"I would like to see a Nagios monitoring plugin which watches the health and performance of the system. The only one available just checks volume capacity."

"FlashArray could improve on the administrative side. For example, when you need to upgrade the boxes, we can't do that ourselves. We need to open a ticket with support and have them do that for us. You don't need to be on the call with them. We tell them we have a slot that we want to upgrade, and they send us an email when it's done."

"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. We want to be able to read through the encryption."

"I wish they could collaborate more with the other vendors internally, instead of us opening cases with Cisco, HPE, VMware, etc."

"The best way to improve Pure Storage FlashArray is the active DR because that can get very confusing, especially when you're trying to test a failover and replicate back; better instructions on how to do that would help because we actually lost an entire volume when we were testing out some stuff as the fingerprint got reinitialized, and when you replicated back, it didn't know about that volume, causing a failure in that process."

"The GUI could improve, it could be more intuitive. There is hidden functionality."

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

More Everpure FlashArray cons

"Improve the administrative user interface so it is easier to work with. Currently, a simple task, such as removing a host from 100 LUNS, takes a lot of time. If they could improve LUN to host model to be more like the EMC VPLEX, for example, it would be great."

"However, configuring it for the application is quite tedious because it doesn't have any built-in templates for different workloads."

"Yes, sometimes the DNS does not work out properly."

"It could go faster. Make it bigger, better, and faster at a lower price, and I am there."

"We have only used this solution for less than one year so I don't have any improvements suggestions yet."

"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."

"Unity only does compression. It would be nice if there was a deduplication feature as well."

"This product needs to have better integration with enterprise backup solutions and archiving devices."

More Dell Unity XT cons

"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."

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

"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."

"If the VNX had embedded encryption, that would be great."

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

"They don’t quite provide enough security in the data centre."

"Yes, we have had issues. The system is limited by the number of enclosures."

"HP EVA and once NetApp, but they both had slow performance and a lack of features so we switched."

More VNX [EOL] cons

Pricing and Cost Advice

"The license for Pure Storage FlashArray includes the support and there are no additional payments that are needed. This is not an inexpensive solution, you need to understand the value of your data before you use a backup solution."

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

"There should be quite a bit of reduction of TCO with just licensing (and stuff) because we run the VM environment off it."

"Because the price is a bit higher than other products, the data reduction equalizes the price with amount of the data reduction."

"The price is reasonable."

"The price of the Pure Storage Flash Array is too high and there needs to be more contact clarity. We went with the Evergreen plan and I don't have clarity on what am I supposed to pay each year or every three years. There was not much contract clarity."

"Dell and Pure Storage offer competitive pricing, but Pure Storage might have a slight advantage."

"There is an annual or perpetual license required for this solution."

More Everpure FlashArray pricing and cost advice

"The support you're getting with it is probably an underestimated value that comes with the box you're buying."

"We have to apply for a license for each system."

"Pricing for this product is manageable, though slightly higher than comparable products."

"We looked at HPE Nimble but the price of the Unity XT was very good compared to the competition."

"I rate Dell Unity XT’s pricing a nine out of ten."

"We checked both HP and Dell and we determined that Dell EMC was a better option."

"We integrated it with VMware vSphere at no additional cost. As we moved into VMware vSphere, this is what we bought to go with it for our storage performance."

"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."

More Dell Unity XT pricing and cost advice

"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."

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

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

"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

13%

Comms Service Provider

10%

Financial Services Firm

10%

Outsourcing Company

14%

Manufacturing Company

11%

Financial Services Firm

Computer Software Company

Construction Company

16%

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	73
Midsize Enterprise	38
Large Enterprise	161

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?

When comparing cost, I find that the cost is either the same or slightly higher, but that is returned by the ease of ...

See all answers

What needs improvement with Pure Storage FlashArray?

The only thing I think could be improved is price. The price is the main concern for our customers.

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

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HPE 3PAR StoreServ vs Everpure FlashArray

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Compared 24% of the time

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HPE Nimble Storage vs Dell Unity XT

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Compared 14% of the time

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Product Reports

Buyer's Guide

Everpure FlashArray

October 2026

Download Everpure FlashArray product report

Buyer's Guide

Dell Unity XT

October 2026

Download Dell Unity XT product report

Buyer's Guide

VNX [EOL]

October 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, Everpure (formerly Pure Storage), Hewlett Packard Enterprise and others in All-Flash Storage. Updated: October 2026.

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