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: August 2026).

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August 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.

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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

"Pure Storage is seen as a visionary company with leading edge technology."

"Overall, the best returns on investment have been operational simplicity, reliability, and reduced management overhead."

"The initial setup is very straightforward. You simply plug it in and turn it on."

"The most valuable feature is its speed."

"The most valuable feature is the speed of it, as it is much faster than anything that we can get from similar competitors, and the solution helps to simplify storage."

"We like the data reduction rates. That has been really helpful. You get 4U of Pure storage replacing something like two racks of spinning disks. One of the things that has contributed to that are the data reduction rates."

"We are very happy with the data deduplication and compression ratio that we have on the platform."

"The ease of use. That's what our customers love. They say it's very easy, they don't need special training, they don't need to call us or any other company or integrator to help them do their job. That's the main reason they purchase Pure."

More Everpure FlashArray pros

"Inline data reduction is pretty impressive."

"It's an all-flash Unity, With that compression feature, it's comparable to a hybrid. That is one thing that we definitely like."

"The Dell EMC unity interface is simple to manage. We manage it by ourselves. We create logs to store data."

"We have adopted the all-flash array; it eliminates all the overhead of tiering and a lot of the data structuring overhead involved, and it gives us a lot of operational efficiencies."

"The first time we got a Unity was last year, we started deploying some of our file system data into it, and we have been seeing a significant improvement, not just in the way that we take Snaps, but with the recoveries as well."

"This solution helped us reduce our physical footprint and power consumption."

"There are some alternatives, but what we've found, working with our partners, for mid-range storage it's probably the best one you could choose."

"They have a Unity REST API that I use to automate some of the storage stuff. I'm just getting started with it, but it seems pretty easy to use."

More Dell Unity XT pros

"The implementation of both block and file system storage in a single GUI provides is better situated than most other storages."

"Good performance for VM environments"

"Customer service is top-notch with a dedicated sales and technical resource who are familiar with your environment and spend a lot of time understanding your business needs."

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

"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."

"Stability has been rock solid, as we have been running both units for over two years with no major problems."

"It’s very stable in all the years I've worked with it, I know it’s stable and the support is there."

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

More VNX [EOL] pros

Cons

"The pricing needs to be improved as they offer very high budgeting prices. Searching is a big challenge in Pure Storage FlashArrays, especially when trying to restore a VM."

"The capability from Pure as far as sharing out files and things of that nature is a little bit lacking."

"I would like a feature to integrate with external or cloud solutions. For example, if I want to use this storage for a backup from the cloud, I want to have integration with the cloud vendors, such as Microsoft, Oracles, or Amazon. It could be available as an API to allow seamless integration. Additionally, the solution could improve by having native integration with a cloud provider, such as VMware or Microsoft, this would reduce the need to use third-party solutions to complete the task."

"In the next release of this solution, we would like to see automated copy data management for SQL Server."

"In the configuration, which we brought in or tested it in, it has a very limited config as far as the array goes. That said, it still did more than our anticipation."

"We would like to see better troubleshooting aspects. It helps us if we can find out where the problem is. Right now, it's difficult. Sometimes it's difficult to pinpoint the issue. If they had more visibility and more troubleshooting feature built into the tool that would really help."

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

"I would like to get a weekly report of how our storage has been used, and if there is any storage sitting there not being used."

More Everpure FlashArray cons

"In future releases, I would like to see automatic upgrades from one to the next, when this system is coming out and the next one is coming in; more akin to what Pure Storage is doing. That would be really helpful."

"It might be nice to have more integrated features instead of having everything as a separate module, like the networking. The networking is attached separately in the back. It would be nice if that was more integrated with less ports."

"Firmware Upgrades in EMC Unity require you to manually download OS and Drive firmware, this should be integrated (Nimble does this). When you order an EMC Unity, you have to specify the block size. This is weird for me and even weirder that you cannot change this afterwards, you should be able to specify per LUN/datastore (Nimble does this as well)."

"Things that could be improved include one-to-many replication, data deduplication, and asynchronous Fibre Channel replication. It is asynchronous on iSCSI and I would like to have that on the Fibre Channel. Unisphere-wise, I have to log in to each Unity as a unique environment. In VNX, I logged in to the domain and I was logged in to every VNX. So that's missing."

"It is expensive, and the pricing could be better."

"What I'd like to see is a little more detail on the networking side. I can go into where it's showing me the replication, but when I go into the network it just gives me broad-based information. I don't know which replication job is actually feeding it. I have to go in and rely on other apps."

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

"Maybe deduplication would be something that would be better to have."

More Dell Unity XT cons

"The CLI could be better documented, like with VMAX."

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

"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."

"Storage processor architect for real active/active HA ASIC based functions are needed"

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

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

"Based on our workloads, we see repeatedly in performance reports that the built-in controller (SP) cache of our VNX model is not sufficiently large, resulting in forced cache flushing."

"There were scalability issues, the scalability options are limited due to supported SSD."

More VNX [EOL] cons

Pricing and Cost Advice

"The price of Pure Storage FlashArray could always improve. They are still more expensive than some alternative offerings. Cost is always a concern and when there is a battle they tend to be more expensive."

"While it comes with a higher price tag, this investment often translates to significant improvements in performance."

"It's a good price point and it's a solid product for the price."

"We have seen a reduction in the TCO, because Pure Storage is partnering with Belfrics. This partnership reduces our latency and space."

"We have 16 or 18 arrays. We like to do the three-year support model so that we get Evergreen and therefore, we get free upgrades. We pay around more than 1.5 million dollars."

"I would prefer that they lower their pricing."

"I think that the pricing is less expensive compared to other standard products in the market today. Even the support contract and maintenance services cost less when compared to market-leading products like EMC."

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

More Everpure FlashArray pricing and cost advice

"The solution is very expensive."

"Our CAPEX was close to $42,000 and operating costs are below $1000."

"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."

"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."

"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."

"The license is not required, but we must renew the support every year, every two years."

"Compared to other EMC platforms, Unity is nice because it is all-inclusive, in terms of the licensing model. That's unique for them, compared to other manufacturers. It is beneficial. We could use replication, native, right out-of-the-box."

"It is shipped with all licensed, included for this product range, no need to buy additional licenses"

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."

"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."

"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."

"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%

Financial Services Firm

11%

Construction Company

10%

Outsourcing Company

Manufacturing Company

10%

Outsourcing Company

10%

Computer Software Company

Financial Services Firm

Construction Company

18%

Financial Services Firm

13%

Manufacturing Company

12%

Outsourcing Company

12%

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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Comparisons

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VMware vSAN vs Everpure FlashArray

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Dell PowerStore vs Dell Unity XT

Compared 27% of the time

NetApp AFF vs Dell Unity XT

Compared 10% of the time

HPE 3PAR StoreServ vs Dell Unity XT

Compared 5% of the time

Hitachi Virtual Storage Platform vs Dell Unity XT

Compared 4% of the time

Tintri VMstore T7000 vs Dell Unity XT

Compared 4% of the time

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HPE 3PAR StoreServ vs VNX [EOL]

Compared 27% of the time

HPE MSA vs VNX [EOL]

Compared 27% of the time

Oracle Sun ZFS Storage Appliance vs VNX [EOL]

Compared 16% of the time

NetApp FAS Series vs VNX [EOL]

Compared 11% of the time

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Product Reports

Buyer's Guide

Everpure FlashArray

August 2026

Download Everpure FlashArray product report

Buyer's Guide

Dell Unity XT

August 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: August 2026.

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