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Dell Unity XT vs HPE Alletra Storage comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 28, 2025

Review summaries and opinions

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

ROI

Sentiment score
1.0
Organizations reduced costs and improved performance with Pure FlashArray X NVMe, achieving quick ROI and efficient resource management.
Sentiment score
3.1
Dell Unity XT delivers ROI with cost-effectiveness, scalability, improved performance, reduced costs, and seamless management for virtual transformation.
Sentiment score
5.7
Many organizations found HPE Alletra Storage cost-effective, easy to manage, reliable, and beneficial for efficiency and performance improvements.
If you wait more than seven years to buy another one, you get a return on your investment.
Sales Manager at Multicomputos PR
For anyone new to the company, it is very easy to understand what is going on, how to manage, how to get access and know what it is doing.
CTO & Presales Manager at Pleiades Tecnologia
Uptime is ROI.
Network System Analyst at a government with 5,001-10,000 employees
With Alletra, it downloads the software, and you just hit the button, and go.
System Engineer at University of Nebraska
 

Customer Service

Sentiment score
7.1
Pure FlashArray X NVMe's technical support is praised for responsiveness, despite occasional follow-up issues, earning high customer satisfaction.
Sentiment score
6.2
Dell Unity XT's support is praised for professionalism, but users note responsiveness issues post-merger; proactive monitoring is appreciated.
Sentiment score
6.5
HPE Alletra Storage support is highly rated for responsive, skilled service, quick resolutions, and effective problem-solving, especially Nimble support.
Customers always have their issues resolved promptly.
Sales Manager at Multicomputos PR
Technical support is good at least through vendors, not directly with the principal.
Infrastructure Specialis at a tech services company with 1-10 employees
The support team is familiar with the product and is available on-site during support times, which improves our experience.
Head of Infrastructure Security (S.A.V.P) at EXIM Bank Ltd
Dell solutions are backed by excellent service and support.
Sales Account Manager - BFSI Sector at Frontier Business systems
The technical support sometimes takes three to four days to get hardware to facilities.
Systems Engineer at Thakral One (Pvt) Ltd
We have four-hour support, and 99% of our issues are resolved within that timeframe.
System Administrator at a consumer goods company with 1,001-5,000 employees
Last week, a ticket that needed to be solved in six hours took one week.
Solution Architect at a tech services company with 51-200 employees
As soon as we have a problem, we open a ticket with them, and they immediately get back to us well within the four hour SLA that we have with them.
Infrastructure Architect at Enloe Medical Center, Inc.
 

Scalability Issues

Sentiment score
7.1
Pure FlashArray X NVMe offers scalable storage with low latency, easy upgrades, though capacity customization and high costs are noted.
Sentiment score
7.0
User feedback highlights Dell Unity XT as highly scalable, meeting diverse organizational needs, especially for mid-sized and enterprise demands.
Sentiment score
7.0
HPE Alletra Storage offers efficient scalability, enabling easy expansions with minimal downtime, despite some limitations in certain models.
It is highly scalable.
Sales Director at systemzwo group
It hasn't broken down anytime in the last six to seven years, despite hurricanes, earthquakes, and power outages.
Sales Manager at Multicomputos PR
Dell Unity XT is quite scalable and can be scaled up to the petabyte level.
Systems Engineer at Thakral One (Pvt) Ltd
For NetApp, we can recommend the FAS 8000 series.
TSG Manager at Navigator Systems
We've had zero downtime.
Manager, Information Technology, Infrastructure at a manufacturing company with 51-200 employees
Alletra provides modular, non-disruptive scale-up and scale-out.
Senior Consultant at a tech vendor with 10,001+ employees
If we do grow beyond what the appliance already has, we know that service will take care of it and grow the appliance for us without needing to forklift upgrade.
Operations Technician at a energy/utilities company with 201-500 employees
 

Stability Issues

Sentiment score
8.1
Pure Storage offers exceptional stability and reliability with outstanding support, consistently achieving high user ratings for performance and service.
Sentiment score
8.4
Dell Unity XT is praised for reliability and stability, swiftly resolving initial issues with firmware updates and improvements.
Sentiment score
7.9
HPE Alletra Storage is recognized for high uptime, reliability, and performance, with some concerns about future stability.
I would rate the stability of the product at seven out of ten.
Project Manager at a government with 11-50 employees
I would rate the overall stability of Dell Unity XT an eight out of ten.
Systems Engineer at Thakral One (Pvt) Ltd
The solution is stable and rock-solid.
Infrastructure Architect at Enloe Medical Center, Inc.
I have not experienced any downtime, crashes, or performance issues.
Manager, Information Technology at a agriculture with 5,001-10,000 employees
I have experienced no issues yet, so I assess the stability and reliability of HPE Alletra Storage as 100%.
Head of Information Technology at a media company with 51-200 employees
 

Room For Improvement

Pure FlashArray X requires cost-effective improvements in UI, integration, cloud features, multitenancy, analytics, backup, AI, and scalability.
Dell Unity XT requires improvements in deduplication, management interface, VMware integration, pricing, and enhanced cloud functionalities.
HPE Alletra users seek NVMe integration, improved setup, intuitive management, AI capabilities, and better compatibility with protocols and platforms.
We would appreciate a built-in transparent failover in the next release to eliminate the need for a separate metro cluster.
Sales Director at systemzwo group
One way to improve the product is to add an operational assistant that doesn't depend on VMware.
Sales Manager at Multicomputos PR
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.
Cloud Architect at DXC Technology
In the future, if Dell storages include this option, especially for Unity, it would help us target SME or medium enterprises for quicker closures and support the sales team.
Sales Account Manager - BFSI Sector at Frontier Business systems
I believe if Dell can integrate AI to predict potential failures, especially in hardware like hard disks, that would be very useful for proper maintenance.
Systems Engineer at Thakral One (Pvt) Ltd
The pricing is a bit higher than expected.
System Engineer at a tech services company with 1-10 employees
They shouldn't strip out anything from InfoSight. That is really helpful software to see how the storage arrays are performing and has helped us do a lot of troubleshooting.
Senior Director, Information Technology at a tech vendor with 201-500 employees
They would like to have one tool that can take them everywhere. There should be a single pane of glass.
Sr. Storage and Virtualization Engineer at a tech services company with 201-500 employees
Most importantly, there is going to be the flexibility of moving compute and storage on Alletra MP.
Solution Architect at CBTS
 

Setup Cost

Enterprise buyers see Pure FlashArray X NVMe as a justified premium investment due to performance and comprehensive licensing.
Dell Unity XT provides affordable enterprise storage with bundled software, straightforward licensing, and competitive pricing starting at $25K.
HPE Alletra Storage pricing is competitive, with varying opinions on cost, licensing complexity, and alignment with consumption-based models.
While the prices may be higher than those of other vendors, we see it as a market leader with benefits.
Manager, System Infrastructure & Security at Organik Kimya San. ve Tic. A.S.
The support can be a bit pricey, but the solution is more cost-effective than anything else out there.
Sales Manager at Multicomputos PR
I would rate the solution as an eight out of ten in terms of costliness.
Sales Director at systemzwo group
It is priced at around or under $50,000.
System Engineer at a tech services company with 1-10 employees
The cost is not cheap nor expensive.
Head of Infrastructure Security (S.A.V.P) at EXIM Bank Ltd
Commercially, Dell Unity XT is viable and competitively priced.
Sales Account Manager - BFSI Sector at Frontier Business systems
For future use, we bill based on device consumption rather than the traditional datacenter model.
System Engineer at Kenera International Trading PLC
The predictability of having that one-time cost is everything for the data center.
Senior Director, Information Technology at a tech vendor with 201-500 employees
It's expensive.
Network System Analyst at a government with 5,001-10,000 employees
 

Valuable Features

Pure FlashArray X NVMe offers exceptional performance, reliability, scalability, and seamless VMware integration, enhancing workload efficiency and user experience.
Dell Unity XT excels in performance, ease of use, and scalability, featuring intuitive management and seamless integration for diverse environments.
HPE Alletra Storage offers easy management, fast deployment, cost savings, VMware integration, predictive analysis, and proactive support for efficient operations.
Its data compression feature is the best that we have ever seen.
Sales Manager at Multicomputos PR
The standout features for us in Pure FlashArray X NVMe are its robust DDoS protection, seamless transparent failover, and failback capabilities ensuring high availability.
Sales Director at systemzwo group
Pure FlashArray X NVMe helps to improve our processing speed.
Manager, System Infrastructure & Security at Organik Kimya San. ve Tic. A.S.
Dell Unity XT integration with VMware helps scalability and availability through seamless operations and enhanced performance.
Assistant Manager, Technology Support & Services at a comms service provider with 51-200 employees
It helps with data cost management and is seen as a mid-range product with good performance.
System Engineer at a tech services company with 1-10 employees
We installed the Flash, which makes our IO operations fast and efficient.
Head of Infrastructure Security (S.A.V.P) at EXIM Bank Ltd
With NVMe drives, a single drive can provide up to thirty thousand IOPS.
Solution architect at Aeris
The guarantee of data availability is very important to us. Data runs everything.
Manager, Information Technology, Infrastructure at a manufacturing company with 51-200 employees
The guarantee of data available to our organization is important. We're a manufacturing company. If our systems go down, we lose dollars every minute that system's offline.
System Administrator at a consumer goods company with 1,001-5,000 employees
 

Categories and Ranking

Pure FlashArray X NVMe
Sponsored
Ranking in All-Flash Storage
12th
Average Rating
9.0
Reviews Sentiment
6.7
Number of Reviews
36
Ranking in other categories
NVMe All-Flash Storage Arrays (6th)
Dell Unity XT
Ranking in All-Flash Storage
5th
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
198
Ranking in other categories
No ranking in other categories
HPE Alletra Storage
Ranking in All-Flash Storage
2nd
Average Rating
9.2
Reviews Sentiment
7.1
Number of Reviews
87
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of December 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 1.2%, up from 0.7% compared to the previous year. The mindshare of Dell Unity XT is 5.9%, down from 9.1% compared to the previous year. The mindshare of HPE Alletra Storage is 9.3%, up from 5.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Market Share Distribution
ProductMarket Share (%)
HPE Alletra Storage9.3%
Dell Unity XT5.9%
Pure FlashArray X NVMe1.2%
Other83.6%
All-Flash Storage
 

Featured Reviews

Jaehoon Oh - PeerSpot reviewer
Chief Technology Officer at Lambda256
Supports efficient storage management through volume snapshots and offers reliable non-disruptive upgrades
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could be enhanced. I can see the performance statistics in the Pure Storage console, but it does not show the performance by 4K byte unit. It displays IOPS and bandwidth, but IOPS is about real use, and I want to know how many IOPS are currently running in 4K byte units. I cannot see that IOPS because most storage systems report their performance by 4K byte unit. I want to see Pure Storage performance by 4K byte unit to compare with other storage or other internal NVMe SSD.
DK
Sales Account Manager - BFSI Sector at Frontier Business systems
Customer needs are addressed effectively with collaborative sales and service support
Recently, customers have been asking for a cloud tiering option in storages. Some Dell storages do not have cloud tiering, which is an optional commercial feature. NetApp's FSA model 2750 comes with an inbuilt cloud tiering option. In the future, if Dell storages include this option, especially for Unity, it would help us target SME or medium enterprises for quicker closures and support the sales team.
TL
Systems Specialist at a comms service provider with 201-500 employees
Data management operations are streamlined with impressive metrics and responsive support
Improving HPE Alletra Storage is challenging to answer because there are several different metrics to consider. From a performance perspective, the improvements and large jumps are fantastic as is. From a deployment perspective, I was a big fan of the on-premise deployment model and then connecting it afterward to GreenLake. Now that's being sunsetted. From a sensor and metric standpoint, there is just enough data without getting useless metrics, where you become blind to what it provides. The HPE Storage Technical Assistance Center is still probably the best out of all the storage vendors. It's difficult to improve upon being able to call in and get assistance almost instantly.
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Top Industries

By visitors reading reviews
Computer Software Company
13%
Manufacturing Company
11%
Financial Services Firm
11%
Government
6%
Computer Software Company
16%
Manufacturing Company
12%
Financial Services Firm
7%
Government
6%
Computer Software Company
15%
Manufacturing Company
10%
Financial Services Firm
8%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise11
Large Enterprise12
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise49
Large Enterprise94
By reviewers
Company SizeCount
Small Business29
Midsize Enterprise25
Large Enterprise36
 

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.
What is your experience regarding pricing and costs for Pure FlashArray X NVMe?
The price of Pure FlashArray X NVMe is very expensive, though I do not know the actual price because I am using the E...
What needs improvement with Pure FlashArray X NVMe?
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could ...
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...
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...
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...
What do you like most about HPE Alletra?
It offers rich features and high speed for transferring data.
What is your experience regarding pricing and costs for HPE Alletra?
The cost overall depends on the competition; normally, the price is competitive for HPE Alletra 5000. However, for th...
What needs improvement with HPE Alletra?
In HPE Alletra Storage, areas that have room for improvement include the network-attached storage, specifically the N...
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
EMC Unity, Dell EMC Unity
No data available
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
Accenture, Aetna, AIG, Airbus, Allianz, American Express, ATT, Bank of America, Barclays, BASF, Bayer, Berkshire Hathaway, Boeing, BNP Paribas, Citigroup, Coca Cola, Comcast, Credit Suisse, Dell, Deutsche Bank, ExxonMobil, Ford Motor Company, General Electric, Google, HSBC, IBM, Intel, JPMorgan Chase, Kroger, L'Oreal, Merck
Find out what your peers are saying about Dell Unity XT vs. HPE Alletra Storage and other solutions. Updated: December 2025.
879,310 professionals have used our research since 2012.