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Dell Unity XT vs IBM FlashSystem comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Sep 18, 2024

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
4.4
Everpure FlashArray boosts efficiency, reduces costs, and enhances storage with improved latency, data compression, and seamless integration.
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
6.3
IBM FlashSystem offers high ROI with efficient migration, scalability, and performance, despite post-acquisition price increases; valued for reliability.
In the long term, spanning three to five years, the total cost of ownership becomes cheaper, considering power consumption, data center footprint, and NVMe technology usage.
Works at a consultancy with self employed
Our current workload, particularly the SQL use case, would not be possible on mechanical storage, and the ease of use for the small team for the array is important for supporting that workload.
Consultant at a computer software company with 51-200 employees
Pure Storage FlashArray integrates with APIs and other systems.
Senior Storage Engineer at Ensono
The solution can comfortably be stretched from five to seven years without any failures, ensuring a long-lasting return.
Infrastructure Technical Specialist II at Clicks Group
We have seen return on investment compared to other OEMs, which took approximately three years after implementing IBM FlashSystem.
Technical Lead at Tomia
 

Customer Service

Sentiment score
8.3
Everpure FlashArray's customer service excels with proactive support, knowledgeable staff, and global responsiveness, enhancing satisfaction and reliability.
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
6.9
IBM FlashSystem's customer service is responsive, yet technical expertise and support vary by region, with contract complexities noted.
Pure's support organization is responsive with minimal bureaucracy, making support a key factor in customer retention.
Director of Engineering at a computer software company with 1,001-5,000 employees
I would rate the technical support an 11 out of 10.
Cyber Security Consultant at Jonkoping Energi AB
The support from Pure Storage is excellent.
Presales Engineer at a manufacturing company with 1,001-5,000 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
Customers of alternatives like Dell and Hitachi enjoy more reliable and comprehensive support services directly from vendors rather than third-party subsidiaries.
Vice President Sales at BELOCAL LTD
I rate the technical support from IBM as a ten.
Infrastructure Technical Specialist II at Clicks Group
IBM customer support is responsible, efficient, and responsive, though it is expensive.
Manager, Technical Services, IBM Storage & Backup Solutions. at Thakral
 

Scalability Issues

Sentiment score
6.9
Everpure FlashArray offers scalable storage with modular upgrades, suitable for seamless expansion, though some encounter limitations at higher capacities.
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
7.3
IBM FlashSystem offers scalable storage solutions with dynamic upgrades and flexibility for medium to large enterprises despite some hardware limitations.
A big banking client had around 300 petabytes of data on Pure Storage.
Works at a consultancy with self employed
Our customers can scale up or scale out, raise the performance, and expand the storage spaces by investing every year.
Senior Ai Architect at Logicalis
The solution is highly scalable, particularly when there is a need to expand capacity.
Lead Technical Architect at ePlus Technology, inc.
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
For larger enterprises, scalability is an issue as the price becomes prohibitive.
Vice President Sales at BELOCAL LTD
The problem arises when migrating data to a later IBM FlashSystem version due to issues with firmware compatibility.
Manager, Technical Services, IBM Storage & Backup Solutions. at Thakral
The scalability of IBM FlashSystem is exceptional, and I rate it as a nine.
Infrastructure Technical Specialist II at Clicks Group
 

Stability Issues

Sentiment score
8.4
Everpure FlashArray receives high praise for stability and reliability, with minor upgrade issues but overall excellent user satisfaction.
Sentiment score
8.4
Dell Unity XT is praised for reliability and stability, swiftly resolving initial issues with firmware updates and improvements.
Sentiment score
7.6
IBM FlashSystem is praised for stability and resilience, with minor issues resolved quickly, earning high feedback for reliability.
For stability, I rate it a ten out of ten.
Senior Storage Administrator at a comms service provider with 5,001-10,000 employees
We have continuous 99.9% uptime and do not experience any users reporting performance issues due to latency.
Senior Storage Engineer at Ensono
The vision Pure Storage FlashArray offers through the GUI is clearer; we can discern the status, what is cabled, and how direct flash is enabled.
Technical Lead at Wipro Limited
I would rate the overall stability of Dell Unity XT an eight out of ten.
Systems Engineer at Thakral One (Pvt) Ltd
Customers have infrastructure that is 100% stable.
Manager, Technical Services, IBM Storage & Backup Solutions. at Thakral
The firmware and software engine have fewer bugs, which enhances operational efficiency.
Infrastructure Technical Specialist II at Clicks Group
 

Room For Improvement

Everpure FlashArray needs better integration, pricing, analytics, backup processes, cloud features, scalability, and user-friendliness, especially for VMware.
Dell Unity XT requires improvements in deduplication, management interface, VMware integration, pricing, and enhanced cloud functionalities.
IBM FlashSystem requires enhancements in scalability, integration, user interface, and support, with better deduplication, monitoring, and streamlined processes.
Integrating object storage into the FlashArray would benefit entry-level and SMB customers by offering a more unified solution.
Lead Technical Architect at ePlus Technology, inc.
Storing cold data on expensive arrays doesn't make financial sense, and tiering to any of the big three cloud providers would be advantageous.
Director of Engineering at a computer software company with 1,001-5,000 employees
As a technical professional, I lack visibility into the system logs.
Senior Network Engineer at Holy Redeemer Health System, Inc.
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
Despite marketing promises, these features do not function effectively and can impact performance.
Vice President Sales at BELOCAL LTD
There is room for improvement in the troubleshooting part, specifically related to IBM Spectrum for Insight.
Manager, Technical Services, IBM Storage & Backup Solutions. at Thakral
An additional function that could be helpful is reducing the time it takes to delete volumes, especially if they are compressed or deduplicated.
Storage Specialist at a computer software company with 1,001-5,000 employees
 

Setup Cost

Everpure FlashArray's all-inclusive pricing and performance make it ideal for organizations prioritizing simplicity despite higher initial costs.
Dell Unity XT provides affordable enterprise storage with bundled software, straightforward licensing, and competitive pricing starting at $25K.
IBM FlashSystem offers competitive pricing, but evaluating long-term needs and negotiating discounts is crucial to manage costs effectively.
They're expensive.
Director of Engineering at a computer software company with 1,001-5,000 employees
While they say it's free, we actually pay for support upfront.
Senior Network Engineer at Holy Redeemer Health System, Inc.
Some smaller organizations may find it slightly expensive, but for enterprises, when considering performance, future hardware investments, and overall benefits, it is a very cost-effective solution for mid and enterprise organizations.
Senior Storage Engineer at Ensono
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
To install or upgrade any software features, the cost is high, which makes it challenging for smaller companies who do not require advanced features like deduplication or compression typically needed by larger organizations.
Vice President Sales at BELOCAL LTD
The pricing is high; storage solutions are always expensive.
Freelancer at a logistics company with 10,001+ employees
 

Valuable Features

The Everpure FlashArray is lauded for its speed, cost-effectiveness, ease of use, and robust data management features.
Dell Unity XT excels in performance, ease of use, and scalability, featuring intuitive management and seamless integration for diverse environments.
IBM FlashSystem delivers high performance, user-friendly management, and scalable efficiency with robust features like deduplication and virtualization.
FlashArray's integration with the Pure One instrument provides a centralized platform for efficient management of all arrays.
Presales Engineer at a manufacturing company with 1,001-5,000 employees
Another noteworthy aspect is their platform, Pure One, a cloud-based analytics platform that automatically creates a case and sends out a part if a disk or controller fails.
Lead Technical Architect at ePlus Technology, inc.
It handles internal data migration seamlessly in the background without going offline, achieving a hundred percent uptime.
Director of Engineering at a computer software company with 1,001-5,000 employees
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
There is a significant amount of data reduction, achieving a ratio of one to three.
Storage Specialist at a computer software company with 1,001-5,000 employees
The most valuable features are performance and reliability.
Freelancer at a logistics company with 10,001+ employees
There is built-in compression, a data reduction feature, and artificial intelligence-driven insights that calculate warnings and errors to redirect to customers automatically.
Manager, Technical Services, IBM Storage & Backup Solutions. at Thakral
 

Categories and Ranking

Everpure FlashArray
Sponsored
Ranking in All-Flash Storage
4th
Average Rating
9.0
Reviews Sentiment
7.3
Number of Reviews
215
Ranking in other categories
No ranking in other categories
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
IBM FlashSystem
Ranking in All-Flash Storage
13th
Average Rating
8.2
Reviews Sentiment
6.9
Number of Reviews
113
Ranking in other categories
NAS (7th), Modular SAN (Storage Area Network) (4th)
 

Mindshare comparison

As of May 2026, in the All-Flash Storage category, the mindshare of Everpure FlashArray is 7.5%, up from 6.3% compared to the previous year. The mindshare of Dell Unity XT is 6.0%, down from 7.3% compared to the previous year. The mindshare of IBM FlashSystem is 4.6%, down from 6.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Mindshare Distribution
ProductMindshare (%)
Everpure FlashArray7.5%
Dell Unity XT6.0%
IBM FlashSystem4.6%
Other81.9%
All-Flash Storage
 

Q&A Highlights

Miriam Tover - PeerSpot reviewer
Service Delivery Manager at PeerSpot
Aug 24, 2021
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
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.
NR
TSG Manager at Navigator Systems
Ease of implementation and robust performance enhance multi-OEM support experience
We are limited only to hardware replacement, not administration tasks. We work on AMC products through Annual Maintenance Contracts. We provide support up to the 680 model. The XT680F is a newer model, and we support from 380F to 680F. The FlashSystem 8000 series is all-flash, and there is also a 5000 series flash model. We can compare IBM DS series, including the 8000 series for recommendations. For NetApp, we can recommend the FAS 8000 series.
OmarIsmail1 - PeerSpot reviewer
Infrastructure Technical Specialist II at Clicks Group
Offers high performance and dependable support for fast storage needs
The most valuable feature of IBM FlashSystem is its robust back code. When integrated properly into the environment and configured according to the guidelines, it provides a very solid infrastructure that does the job on demand. Additionally, IBM FlashSystem offers competitive pricing and reliable performance. The hardware is dependable, ensuring that it functions effectively when the setup is done correctly.
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Answers from the Community

Miriam Tover - PeerSpot reviewer
Service Delivery Manager at PeerSpot
Aug 24, 2021
Aug 24, 2021
EMC's Unity is not comparable to the performance of an IBM FlashSystem option, but it is fairly close in performance profile to the just released Storewize V5100 model 424. If you provide the initial amount of storage you are going to purchase and your expected capacity growth rate, plus any workoad/performance info you have on hand, and we will give you a very quick TCO and performance compar...
2 out of 5 answers
IB
Storage SME/Architect/Consultant with 10,001+ employees
Apr 17, 2019
For a performance comparison, I use a vendor-neutral benchmark portal like Storage Performance Council: For SPC-1: a) IBM storage, including All-Flash (performance) https://spcresults.org/benchmarks/results/top10/performance/spc1/1?field_peer_review_status_target_id=48&field_sponsor_target_id=18 b) Overall top 10 SPC-1 (performance) https://spcresults.org/benchmarks/results/top10/performance/spc1/1?field_peer_review_status_target_id=48&field_sponsor_target_id=18 c) Overall top 10 SPC-1 (price/performance) https://spcresults.org/benchmarks/results/top10/price/spc1/3 For SPC-2: a) Overall top 10 SPC-2 (performance) https://spcresults.org/benchmarks/results/top10/performance/spc2/1 b) Overall top 10 SPC-2 (price/performance) https://spcresults.org/benchmarks/results/top10/price/spc2/1 I also look at specific benchmarks from the vendors: a) IBM https://www.ibm.com/developerworks/community/blogs/InsideSystemStorage/entry/spc_benchmarks_for_disk_system?lang=en b) Dell EMC https://www.dellemc.com/resources/en-us/asset/white-papers/products/storage/h15161-dell_emc_unity-performance_metrics.pdf
it_user1000854 - PeerSpot reviewer
Enterprise Architect with 10,001+ employees
Apr 17, 2019
I am about to take delivery of a Unity 400 with SAS and have never considered an IBM hardware so i am not able to compare based on experience.
 

Top Industries

By visitors reading reviews
Financial Services Firm
12%
Computer Software Company
9%
Construction Company
9%
Manufacturing Company
8%
Computer Software Company
11%
Manufacturing Company
10%
Financial Services Firm
8%
Comms Service Provider
6%
Financial Services Firm
12%
Computer Software Company
9%
Manufacturing Company
8%
Comms Service Provider
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business64
Midsize Enterprise36
Large Enterprise151
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise49
Large Enterprise94
By reviewers
Company SizeCount
Small Business47
Midsize Enterprise21
Large Enterprise59
 

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...
What is your experience regarding pricing and costs for Pure Storage FlashArray?
The only issue is the pricing. Because we have competition, our customers always take another brand and say they can ...
What needs improvement with Pure Storage FlashArray?
Our customers using Dell storage also use competing solutions. Our customers who have Everpure FlashArray may also ha...
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 is your experience regarding pricing and costs for IBM FlashSystem?
The pricing is high; storage solutions are always expensive. I do not know if the price needs to be reviewed, but it ...
What needs improvement with IBM FlashSystem?
As far as I know, IBM FlashSystem has already improved, but I do not see room for improvement. It is simple to use an...
What is your primary use case for IBM FlashSystem?
We are not working with Object Storage or Storage Protect; we are working with SAN storage and LUN storage. I am a co...
 

Also Known As

Pure Storage FlashArray
EMC Unity, Dell EMC Unity
IBM Storwize
 

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
Celero, Friedhelm Loh Group, Clarks, Mingkang Natregro Health Food Group, Sofia, Etisalat Fights Fraud, UF Health Shands Hospital, Generali, Elecon Engineering Company Limited, Ventiv , Technology, CPFL Energia, Royal Caribbean Cruises Ltd., SciQuest, Coca-Cola Bottling Co. Consolidated, Paddy Power, Kelsey-Seybold Clinic, Interconnect Services, Severstal IP-Only AB, PVU Group GmbH
Find out what your peers are saying about Dell Unity XT vs. IBM FlashSystem and other solutions. Updated: April 2026.
892,646 professionals have used our research since 2012.