Dell PowerMax NVMe vs Dell Unity XT comparison

Dell PowerMax NVMe and Dell Unity XT are both solutions in the All-Flash Storage category. Dell PowerMax NVMe is ranked #8 with an average rating of 8.5, while Dell Unity XT is ranked #4 with an average rating of 8.2. Dell PowerMax NVMe holds a 4.0% mindshare in AFS, compared to Dell Unity XT’s 7.8% mindshare. Additionally, 97% of Dell PowerMax NVMe users are willing to recommend the solution, compared to 96% of Dell Unity XT users who would recommend it.

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Executive SummaryUpdated on Sep 18, 2024

Both Dell Unity XT and Dell PowerMax NVMe are highly regarded storage solutions. Dell PowerMax NVMe seems to have the upper hand due to its superior features and long-term value despite higher pricing.

Features: Dell Unity XT users appreciate its efficient data reduction capabilities, ease of use, and favorable pricing. Dell PowerMax NVMe users value its superior speed, reliability thanks to its NVMe architecture, and advanced performance features that give it an edge.

Room for Improvement: Dell Unity XT could benefit from improved scalability, better performance during peak usage, and greater compatibility with other systems. Dell PowerMax NVMe users desire enhancements in interoperability with other systems, simplified management themes, and a more intuitive user interface.

Ease of Deployment and Customer Service: Dell Unity XT is praised for smooth deployment and responsive customer service. Dell PowerMax NVMe, while receiving positive feedback on support, is noted to have a steeper learning curve and more complex initial setup.

Pricing and ROI: Dell Unity XT is considered more cost-effective with quicker ROI, making it ideal for budget-conscious buyers. Dell PowerMax NVMe, although more expensive, is viewed as a worthwhile investment due to its high performance and advanced technology, offering higher long-term value.

To learn more, read our detailed Dell PowerMax NVMe vs. Dell Unity XT Report (Updated: March 2025).

Buyer's Guide

Dell PowerMax NVMe vs. Dell Unity XT

March 2025

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Review summaries and opinions

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

Categories and Ranking

Pure FlashArray X NVMe

Mindshare comparison

As of April 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.8%, down from 0.9% compared to the previous year. The mindshare of Dell PowerMax NVMe is 4.0%, down from 4.2% compared to the previous year. The mindshare of Dell Unity XT is 7.8%, down from 10.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.

All-Flash Storage

Q&A Highlights

reviewer931557

Storage Architect at a financial services firm with 10,001+ employees

May 05, 2020

Any advice re Dell PowerMax? We are looking at Unity and PowerMax, and also HPE.

The PowerMax NVMe is the high-end storage fromDellEMC it can provide up to 10M IOPS, however, if you need less, you can go with the new Unity XT which is going to have NVMe as well. The new Unity XT is going to be ready for order in June 2019.

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Featured Reviews

Eugene Hemphill

Sales Manager at Multicomputos PR

Helps to save money and resources with the data compression feature

One point I'd like to improve is that the tool should start selling small boxes again. It discontinued some products and is focusing on bigger, more capable boxes, neglecting the SMB market. Even though it's not a big market, it shouldn't have removed them. One way to improve the product is to add an operational assistant that doesn't depend on VMware. It could also establish more alliances with other operational systems.

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Haseeb Khalid Sheikh

Senior Manager Enterprise Solutions at a comms service provider with 10,001+ employees

End-to-end NVMe capabilities helps improve availability, performance, and capacity

The solution's most valuable feature is the data reduction ratio. You can store a 5:1 ratio of your data in Dell PowerMax NVMe. For example, if you have 200 terabytes of usable capacity, you can save up to five times of data on that capacity. That means you can save one petabyte of data on just 200 terabytes of usable capacity. The solution's end-to-end NVMe capabilities have improved our operations. Everything is fast, and you don't have to map your storage to old hybrid storage technologies. Our organization has experienced positive change, and the solution has improved our uptime, availability, performance, and capacity.

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Syed Habib

Head of Infrastructure Security (S.A.V.P) at EXIM Bank Ltd

Efficient data replication and fast IOPS have improved operational performance

Dell and a partner jointly implemented this solution in Auvink. We installed the Flash, which makes our IO operations fast and efficient. Replication is available, allowing us to replicate data simultaneously from one site to another. All-flash technology and vTXT enhance speed, and the IOPS are faster. The cache's IOPS are much better. Snapshots provide a unique feature for testing and make management more comfortable and easy. The platform is multi-supported and certification is more convenient and easy to manage.

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

"Pure FlashArray X NVMe has low latency and high Ops. It is an evergreen model."

"The standout features for us in Pure FlashArray X NVMe are its robust DDoS protection, seamless transparent failover, and failback capabilities ensuring high availability."

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

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

"The duplication algorithm allows us to get a lot more use out of less storage. We're running a five terabyte array right now and we're running probably about 30 terabytes on it. So the duplication rate is pretty phenomenal, without a cost to performance. It still runs pretty smoothly."

"The solution is very straightforward to set up."

"The solution uses newer technology for deduplication and compression."

"We are satisfied with the performance as it is significantly faster compared to traditional storage options."

More Pure FlashArray X NVMe pros

"We use ESRS for our call-home, and a lot of times, Dell EMC will respond to the issue before we even know it."

"We were able to move away from a middleware solution for high availability, going right to snapshots and data replication on arrays."

"It allows us to protect our data using different data centers and replicate bi-directionally between our two main data centers."

"The stability is great. It is five nines."

"We are happy with the monitoring that Dell EMC is doing for us. They have helped us to identify many issues during the routine checks, issues which we were not aware of."

"NVMe technology improves input/output performance."

"I have been highly satisfied with the resiliency and scalability of the solution."

"We're consolidating two to three arrays down to one which means that our data center footprint has decreased by like 90%. So we're saving 90% of our space, and it also is much better on power and everything else in our data center. And on top of that, the performance is much, much better than our older arrays."

More Dell PowerMax NVMe pros

"Scalability is good."

"It is scalable. We can add additional tools if we need to expand it."

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

"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."

"The most valuable feature is the performance. It's still an all-flash array at a good price point."

"Real Unified Storage (Block, File, VVols) in a unique 2U hardware."

"We use replication for disaster recovery (DR), making our DR process much easier."

"This solution makes it easy to manage storage, provision new workloads, and scale-up."

More Dell Unity XT pros

Cons

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

"The tool's pricing is higher than competitors."

"It's more multi-tenant functionality in their Pure1 manage portal that is lacking."

"If the customer only needs 500 terabytes and doesn't care how much data they'll put in the server, IBM is cheaper than Pure."

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

"It is on the expensive side."

"There is room for improvement in catering to midrange storage needs, especially for customers seeking Enterprise-class features."

"I would like to see some AI features that would allow arrays to intelligently identify threats or unusual behavior in the data pattern and give an alert."

More Pure FlashArray X NVMe cons

"Remove the need for physical or hardwired virtual servers to run consistency groups, instead make the expensive array controllers handle that."

"The GUI interface is very complicated and could be improved by streamlining the number of steps in the process."

"The installation of equipment needed support's help."

"The initial setup was complex, as it is a complex system and you have to learn a lot."

"There are some stability issues that we just recently experienced. We hope the next release will solve these problems."

"Since the merging of EMC and Dell into Dell Technologies, there has been a hurdle that they've had to overcome, and they're not over it yet. It takes two to three times longer for things to get fixed than it did when they were separate companies. That is something that has to be fixed."

"There is some room to grow, especially with some of the installation quirks."

"They should work with the storage engineers to better tweak the management tools to give them improved visibility into their data."

More Dell PowerMax NVMe cons

"The Host LUN ID is sequential by access in the hosts. When one LUN needs access by many hosts (for cluster purposes), in some cases the Host LUN ID remains different on each host."

"The only challenge I've ever had was with a Drive firmware upgrade."

"The product’s pricing should be improved."

"It could be improved in the area of management flexibility. For example, I really need to set read-only access for LUNs, and there's no such option with Unity XT."

"Perhaps if they added more 10GB ports to the back of the system, so you have more IOPS out of the box itself to the network, that would help."

"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."

"We've also encountered an issue when it comes to migrating to compressed LANs on the Unity, and during the Storage vMotion. It appears that the compression algorithm is overwhelmed, and when it becomes overwhelmed it just stops compressing and writes the raw data to the destination. We later copied internally another Storage vMotion to another compressed LAN and achieved much higher compressions on that internal copy. It would be really nice if there was a way to automatically throttle, as a part of a Storage vMotion, to say, "I want to gain the maximum benefits from the compression algorithm, so throttle back the Storage vMotion to implement 100 percent compression.""

"We have had some downtime. Nothing is perfect. Unity’s have had some code-release problems, versions that, from a compatibility perspective, had some glitches which caused an outage. But, given the amount of Unity’s we run, that has been fairly minor and it hasn't happened at scale or across all of our Unity’s."

More Dell Unity XT cons

Pricing and Cost Advice

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

"Pretty much everything that you need is licensed when you buy the product. Licensing to me is different than the maintenance cost, but they can bleed into one another. We buy the product, and we expect three years of support bundled into what we negotiate on our storage arrays. I would start to see maintenance costs going into the fourth year, but we're not there yet."

"With VMware, we pay $300,000 annually."

"The product is expensive."

"The support cost per array is about $20,000 a year for 24/7 support."

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

"The tool is an investment that we've budgeted for. While the prices may be higher than those of other vendors, we see it as a market leader with benefits. We don't regret purchasing it."

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

More Pure FlashArray X NVMe pricing and cost advice

"We hope that with the combination of both NVMe and SCM the next PowerMax will be much cheaper that the one which we acquired."

"From a general capital investment, it's one of the higher price points in the market. It depends on the size and software features that you would include in a system. So, the cost varies dramatically."

"Our costs are on a yearly basis."

"The PowerMax appliance pricing was reasonable. Dell EMC quoted us a substantial discount."

"Our costs for the product are three million."

"It is high-end storage and it is a bit expensive, but it is doing what it is meant for: running business-critical applications or latency-sensitive applications..."

"The pricing is competitive. I would rate the pricing of the solution a six out of ten."

"The price is starting from $500,000."

More Dell PowerMax NVMe pricing and cost advice

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

"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."

"The solution is very expensive."

"The only improvement would be a lower cost per unit/disks, however on the whole we are very pleased with this product."

"This product is cheaper than the EMC VNX solution. It is good for small businesses."

"Most licenses for the solution are free but upgrades are available when adding additional software or storage."

"Because of the attractive price, we were able to get rid of more expensive arrays, standardize, and get rid of a lot of spinning disks. We also got rid of more expensive flash that we weren't properly utilizing."

More Dell Unity XT pricing and cost advice

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Answers from the Community

reviewer931557

Storage Architect at a financial services firm with 10,001+ employees

May 5, 2020

Any advice re Dell PowerMax? We are looking at Unity and PowerMax, and also HPE.

2 out of 7 answers

it_user991506

Engineer / Architect at CenturyLink

May 22, 2019

I have used all, EMC, and HPE 3Par, VNX, Unity, etc. All are OK. But for long term Flash Storage, I would take a look at Hitachi F Series. Best reliability hands down and they provide non-disruptive migrations, no server downtime, no scheduling with users, etc. NDM makes Hitachi a no brainer.

Read full answer

Muhammad Khaled

Senior Presales Engineer with 11-50 employees

May 23, 2019

Read full answer

See all 7 answers

Top Industries

By visitors reading reviews

Computer Software Company

15%

Financial Services Firm

11%

Manufacturing Company

11%

Government

Financial Services Firm

16%

Computer Software Company

14%

Manufacturing Company

10%

Government

Educational Organization

72%

Computer Software Company

Manufacturing Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

Questions from the Community

What do you like most about Pure FlashArray X NVMe?

Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use.

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

I am an engineer and am not aware of the setup cost.

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What needs improvement with Pure FlashArray X NVMe?

Adding some functions to the product would be beneficial. Storage replication should be essential, and the analytics ...

See all answers

What's the difference between DELL EMC Powerstore and Powermax NVMe?

Dell PowerStore is an all-solid-state midrange storage system. It has many internal elements taken from other Dell of...

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What do you like most about Dell EMC PowerMax NVMe?

First, it's an enterprise storage solution. This is very important for us. Another important feature is replication.

See all answers

What is your experience regarding pricing and costs for Dell EMC PowerMax NVMe?

The price is starting from $500,000. It's expensive.

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...

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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

Dell PowerStore vs Pure FlashArray X NVMe

Compared 32% of the time

TrueNAS R-Series vs Pure FlashArray X NVMe

Compared 16% of the time

Pure Storage FlashBlade vs Pure FlashArray X NVMe

Compared 14% of the time

IBM FlashSystem vs Pure FlashArray X NVMe

Compared 12% of the time

HPE Alletra Storage vs Pure FlashArray X NVMe

Compared 6% of the time

More Pure FlashArray X NVMe Competitors

Dell PowerStore vs Dell PowerMax NVMe

Compared 27% of the time

HPE Alletra Storage vs Dell PowerMax NVMe

Compared 14% of the time

IBM FlashSystem vs Dell PowerMax NVMe

Compared 10% of the time

Dell VMAX All Flash vs Dell PowerMax NVMe

Compared 8% of the time

Huawei OceanStor Dorado vs Dell PowerMax NVMe

Compared 4% of the time

More Dell PowerMax NVMe Competitors

Dell PowerStore vs Dell Unity XT

Compared 40% of the time

NetApp AFF vs Dell Unity XT

Compared 12% of the time

HPE Nimble Storage vs Dell Unity XT

Compared 6% of the time

Pure Storage FlashArray vs Dell Unity XT

Compared 5% of the time

Hitachi Virtual Storage Platform vs Dell Unity XT

Compared 3% of the time

More Dell Unity XT Competitors

Product Reports

Buyer's Guide

Pure FlashArray X NVMe

March 2025

Download Pure FlashArray X NVMe product report

Buyer's Guide

Dell PowerMax NVMe

March 2025

Download Dell PowerMax NVMe product report

Buyer's Guide

Dell Unity XT

March 2025

Download Dell Unity XT product report

Also Known As

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

Dell EMC PowerMax, PowerMax

EMC Unity, Dell EMC Unity

Overview

Pure Storage FlashArray//X is the world’s first enterprise-class, all-NVMe flash storage array. It represents a new class of storage – shared accelerated storage, which is a term coined by Gartner – that delivers major breakthroughs in performance, simplicity, and consolidation.

Pure Storage

Dell PowerMax is the industry’s most secure mission-critical storage platform. With NVMe Dynamic Fabric technology, PowerMax breaks from traditional storage limitations, enabling seamless integration with cloud-native and legacy applications. Designed with a powerful scale-up and scale-out architecture, PowerMax supports mission-critical applications at scale with zero downtime and ultra-low latency. The latest PowerMaxOS 10 release harnesses AI-driven efficiencies for trusted performance, capacity, and security. By choosing PowerMax, you can trust in a secure, intelligent, and always modern storage solution that unlocks the full potential of your data to drive business success.

Dell Technologies

Dell EMC Unity XT is one of the best all-flash storage arrays on the market today. Dell EMC Unity XT arrays are designed for performance, optimized for efficiency, and built for a multi-cloud world. In addition, they support digital transformation, enabling businesses to reach the full potential of their data capital quickly and easily. Dell EMC Unity’s All-Flash and Hybrid Flash storage platforms provide the performance, efficiency, enterprise-class software, and virtualization integrations required for running a wide range of virtualized applications.

Dell EMC Unity XT Features

Dell EMC Unity XT has many valuable key features, including:

Unified storage flexibility: With Dell EMC Unity XT you can consolidate separate storage platforms into a single Unity XT unified storage system via a simple and intuitive (HTML5) management GUI that also connects you to CloudIQ.
All-inclusive data protection: Dell EMC Unity XT offers a reliable way to protect application data with all-inclusive data protection services, including snapshots, data-at-rest drive encryption, replication, thin clones, and dynamic pools.
Software-defined solutions: Dell EMC Unity XT provides software-defined storage and HA for on-prem and in the cloud solutions.
Multi-cloud alignment: With Dell EMC Unity XT you have the ability to build and manage an effective data-first multi-cloud strategy. It allows you to consolidate public and private cloud resources that align with your business goals.
Metro node: This feature enables automated business continuity with zero RPO and RTO. It also provides greater flexibility through multi-platform support and replication to any array and has zero performance impact on the storage array.
Scalable file system: Dell EMC Unity XT is built with a robust 256TBu file system. The UFS64 file system includes up to 256 independent VMDK clones, 16 thin clones, space efficient snapshots with a simple space reclaim and low IO impact, file system shrink that can reclaim free blocks, simplified Quotas for User, and much more.
DevOps integrations: Dell EMC Unity XT supports the Container Storage Interface (CSI) plugin to run Kubernetes workloads.

Dell EMC Unity XT Benefits

Some of the benefits of using Dell EMC Unity XT include:

High-speed data access
Low latency
Dual-active controller architecture
Multi-cloud
Intuitive user interface
Cost efficient
Solid performance

Reviews from Real Users

Below are some reviews and helpful feedback written by Dell EMC Unity XT users.

A Systems Engineering Manager at a manufacturing company says, "It is definitely one of the most robust, solid, well-performing products that I have dealt with. It is set it and forget it, which is pretty amazing." He also mentions, “We can do both block and file storage on one unit without purchasing a separate device.”

Peter S., Senior Technical Specialist at a healthcare company, states, “The most valuable feature is reliability. At the end of the day, it just runs. This solution is easy to work with and easy to maintain.”

PeerSpot user Melvin T., Senior Systems Engineer at Prosperity Bank, explains that the solution is “easy to use and we can add LUNs or space without interruption to end-users. We're able to access it from just about anywhere, as long as we have access to a browser. That feature is really neat because sometimes we will go to a different data center or a different site, and if we need to access it to see a LUN or to see any type of storage, we can do that. That's one of the big takeaways with Unity."

Dell Technologies

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company

Rackspace, Open Line

Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre

Buyer's Guide

Dell PowerMax NVMe vs. Dell Unity XT

March 2025

Free Report: Dell PowerMax NVMe vs. Dell Unity XT

Find out what your peers are saying about Dell PowerMax NVMe vs. Dell Unity XT and other solutions. Updated: March 2025.

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