Dell Unity XT vs IBM FlashSystem 9100 NVMe comparison

Dell Technologies and IBM are both solutions in the All-Flash Storage category. Dell Technologies is ranked #5 with an average rating of 8.6, while IBM is ranked #27 with an average rating of 8.3. Dell Technologies holds a 5.9% mindshare in AFS, compared to IBM’s 0.6% mindshare. Additionally, 96% of Dell Technologies users are willing to recommend the solution, compared to 95% of IBM users who would recommend it.

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Executive SummaryUpdated on Sep 18, 2024

Dell Unity XT and IBM FlashSystem 9100 NVMe compete in the enterprise storage solutions category. Dell Unity XT offers affordability, while IBM FlashSystem 9100 NVMe stands out with advanced performance features, justifying its higher cost.

Features: Dell Unity XT is recognized for scalability, flexible configuration options, and effective performance. IBM FlashSystem 9100 NVMe impresses with high-speed performance, integrated data reduction technologies, and exceptional reliability. While both offer robust features, IBM's high-speed capabilities stand out.

Room for Improvement: Dell Unity XT could benefit from enhanced deduplication, improved compression efficiency, and more advanced storage efficiency technology. IBM FlashSystem 9100 NVMe users recommend an easier upgrade process, better support for modern data formats, and a simplified management interface. Dell focuses on storage efficiency, and IBM emphasizes upgrade simplicity.

Ease of Deployment and Customer Service: Dell Unity XT is praised for a straightforward deployment process and highly responsive customer support. IBM FlashSystem 9100 NVMe users find deployment manageable but have mixed experiences with support. Dell edges ahead in ease of deployment and customer experience.

Pricing and ROI: Dell Unity XT is favored for cost-effectiveness, offering good ROI for budget-conscious businesses. IBM FlashSystem 9100 NVMe, while more expensive, delivers superior ROI through advanced capabilities and performance enhancements. Users find the investment in IBM justified by its returns.

To learn more, read our detailed Dell Unity XT vs. IBM FlashSystem 9100 NVMe Report (Updated: March 2026).

Buyer's Guide

Dell Unity XT vs. IBM FlashSystem 9100 NVMe

March 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 X NVMe

Mindshare comparison

As of March 2026, in the All-Flash Storage category, the mindshare of Everpure FlashArray X NVMe is 1.6%, up from 0.8% compared to the previous year. The mindshare of Dell Unity XT is 5.9%, down from 8.2% compared to the previous year. The mindshare of IBM FlashSystem 9100 NVMe is 0.6%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

All-Flash Storage Mindshare Distribution
Product	Mindshare (%)
Dell Unity XT	5.9%
Pure FlashArray X NVMe	1.6%
IBM FlashSystem 9100 NVMe	0.6%
Other	91.9%

All-Flash Storage

Featured Reviews

Jaehoon Oh

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.

Read full review

Deepak Kannan

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.

Read full review

MohammedIsmail

Datacenter Manager at Tracker Connect

Enhanced storage performance and an easy setup with compression challenges

We use IBM FlashSystem 9100 NVMe as a storage device in the IT industry The features I find most valuable include its use for storage and performance. The solution's compression needs to be improved, as it's not the best. Furthermore, support from the partner could also be improved as it's been…

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

"On a scale of one to ten, I rate Pure FlashArray as ten."

"The system allows for seamless learning experiences, facilitating quick and easy cloning of environments within minutes."

"The most valuable feature of this solution is reliability."

"Offers excellent features like efficient data reduction, a reliable SafeMode, and a great support model for continuous assistance and updates."

"FlashArray has some fresh efficiency features, I've never seen a storage solution with a compression rating this high before, it's at least 4-to-1 on Oracle databases, it's the best flash storage for Oracle."

"It has benefited my organization because it has reduced time to insights."

"What I really like about this program, is that it is easy to use and easy to configurate."

"After the testing, it was clear to us that the Pure FlashArray X NVMe was the easiest to manage and configure and had the best performance that we had seen in all the arrays."

More Everpure FlashArray X NVMe pros

"It has saved us time when provisioning new storage, so we're trying to automate that process."

"Overall, I've had a very good experience with the solution so far."

"The most valuable feature is the ability to provision storage from the CLI, versus having to go in and use the GUI every time. I can just script it out and it will create what I need. That makes it super-easy to manage. Also, for us, it's a set-and-forget. Once we provisioned it out, we haven't had to mess with it."

"At the moment we are using it with VPLEX, which is a very big advantage for us, and although we don't use many of Unity's functions, it provides good provisioning that allows us to save space, and with the all-flash systems it is quite fast."

"It is simple to use and easy to manage. We don't touch it after we set it up."

"Replication of the communication object (COB) scenarios"

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

"The solution is extremely functional for the price that we pay for it."

More Dell Unity XT pros

"It is a high-performance product that serves our requests well."

"The high performance and high availability improved our overall processes."

"There are many valuable features of IBM FlashSystem 9100 NVMele I have found to meet my needs. Specifically, the maintenance cycle is a standout feature of this solution. The main component of the IBM FlashSystem 9100 NVMe is the maintenance of the batteries, which have a predetermined and reliable four-year life cycle. This is in stark contrast to other solutions that may use spinning disks, which can fail unexpectedly, causing unwanted downtime and maintenance. Having a predictable maintenance cycle is a significant advantage and has made this solution a preferred choice for me."

"A key feature is that compared to storage systems that we've been familiar with over decades, IBM simply does not fail. The reason is that IBM is the only manufacturer that engineers its own flash module, and there is a key architectural difference from everything else that we have seen in the market. The difference is that the flash module has the computational capability, which allows reliability and capacity enhancements to be uploaded from the main controllers and run in each module. So, each of the flash drives becomes its own little storage system, and that is extremely effective architecture. In this field, with this type of system, IBM has made a statement. They've never had one of these modules cause an outage. So, the failure rates on these things are just in a whole different universe from what we were accustomed to."

"The FlashCore modules support more value to the architecture due to their unique characteristics."

"You get value for money, because the product is good in terms of control failure."

"IBM FlashSystem 9100 NVMe is one of the leading storage systems in the world...I rate the solution's stability a ten out of ten."

"The most valuable feature is the speed."

More IBM FlashSystem 9100 NVMe pros

Cons

"The only area I wish to see improve, I believe is coming, is in the FlashBlade product."

"Its price is a little high right now. Otherwise, I would have given it a ten."

"We would like to see VNC integration or be able to use Pure Storage with VNC."

"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."

"We have run into a couple of instances recently where we are running out of space. So we have had to buy some more packs for it and they have deployed fine and it has increased smoothly."

"Efficiency improvements would always be welcome, but I'm not sure if they could get more efficient."

"It is on the expensive side."

"Every time I think of something that needs to improve, they're one step ahead, which I love. The only area I wish to see improve, I believe is coming, is in the FlashBlade product. Blade implementation fell short on a few of the services."

More Everpure FlashArray X NVMe cons

"It is missing some features, like deduplication."

"I called about an issue where I couldn't get VVOLs registered. It turns out it is a bug in the code and that there is no information about when it will be fixed. It's just not going to work. I was a little miffed about that."

"It's not really scalable. Up to mid-range requirements, it's just fine."

"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."

"There is no de-duplication. Unity used to be Bionics, which had de-duplication; however, in Dell Unity XT, the de-duplication was deprecated and is no longer available."

"The dedupe and compression ratios on the Unity are not quite where we want them."

"Licensing has been quite difficult. It doesn't always auto-license. About half the time, when I provision one, I have to contact Service to get a license, or even go to our account manager to help get it straightened out."

"The NAS capabilities of Unity - I have to say there are a lot of things I miss. For example, deduplication for hybrid."

More Dell Unity XT cons

"The ZIO interface could be improved."

"In the FlashSystem 5200, there were only four ports of 32 fiber channels for the architecture. This has been resolved in the new generation."

"IBM's support is not good. I experienced a big problem where I opened the console IBM Storage and would see that something was broken. I called the call centers, and I said, "I have a problem. My drive is not working." They want me to give them the serial number, I gave it to them and they told me "I cannot find your product. Your product is not here.""

"IBM's support is not good. I experienced a big problem where I opened the console IBM Storage and would see that something was broken."

"The solution's compression needs to be improved, as it's not the best."

"The pricing should be more competitive."

"There could be a possibility of not requiring to buy a new box while upgrading to a newer version."

"Other vendors have included a block and file system. IBM doesn't include a file system."

More IBM FlashSystem 9100 NVMe cons

Pricing and Cost Advice

"With Pure Storage, we would like to continue seeing price reductions with flash storage. I don't think we're any different than anybody else when we continue to look to the industry for price reductions of both NVMe and traditional SSD storage. We would like to see these prices continue to decline and erode, even displacing large spinning disks."

"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."

"We pay approximately $50,000 USD per year in licensing fees."

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

"They can tout the functionality and cutting edge technology that they have, but that's where the price tag comes in. The cost is high, but I think as they grow their business and get more customers that it will probably go down a little bit."

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

"Pure FlashArray X NVMe’s pricing is cheaper than other products."

"The tool's pricing is cheap; I rate it a six to seven out of ten. Most of our sales are not subscription-based. We sell the hardware, and customers keep using it. They only renew the service part annually. The support can be a bit pricey, but the solution is more cost-effective than anything else out there."

More Everpure FlashArray X NVMe pricing and cost advice

"Licensing is a little bit confusing. Going through everything with them, there are a lot of line items to go over. Every single thing is broken down into a line item, and it starts to get really confusing in terms of what we're actually purchasing when it comes to the product."

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

"Licensing is fine. We worked with a sales rep to purchase our Unity."

"The product’s pricing should be improved."

"All the licenses are included from day one of your purchase of the product, so you don't have to buy licenses separately. There are no additional costs to be paid for the maintenance of the solution."

"The pricing of Dell Unity XT is good."

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

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

More Dell Unity XT pricing and cost advice

"The price of the FlashSystem 9100 NVMe is reasonable."

"The solution's price is competitive."

"The tool's pricing is competitive."

"The solution is priced well."

"Compared to other solutions, the cost of IBM FlashSystem 9100 NVMe is reasonable, with a one-time payment of around $70,000. However, additional support is available for $25,000 for three years. The overall maintenance cost is steep."

"It's a lot less costly than cloud storage. People get surprised by the cost of cloud storage, which is extremely expensive and four or five times the cost of storage on-premises. People don't realize what they're spending on storage until they start getting bills from Amazon, Microsoft, and others. This is a good way to reduce your cloud storage expenses."

"On a scale of one to ten, where one is a low price and ten is a high price, I rate the pricing an eight."

"The price of IBM FlashSystem 9100 NVMe is less than Dell. For upgrades, the Dell solutions are more expensive."

More IBM FlashSystem 9100 NVMe pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

11%

Manufacturing Company

11%

Financial Services Firm

10%

Government

Computer Software Company

13%

Manufacturing Company

10%

Financial Services Firm

Comms Service Provider

Marketing Services Firm

12%

Healthcare Company

Computer Software Company

Government

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	15
Midsize Enterprise	11
Large Enterprise	12

By reviewers
Company Size	Count
Small Business	62
Midsize Enterprise	49
Large Enterprise	94

By reviewers
Company Size	Count
Small Business	8
Midsize Enterprise	8
Large Enterprise	5

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.

See all answers

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...

See all answers

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 ...

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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What is your experience regarding pricing and costs for IBM FlashSystem 9100 NVMe?

The tool is expensive, though I do not know the specific licensing costs.

See all answers

What needs improvement with IBM FlashSystem 9100 NVMe?

The solution's compression needs to be improved, as it's not the best. Furthermore, support from the partner could al...

See all answers

What is your primary use case for IBM FlashSystem 9100 NVMe?

We use IBM FlashSystem 9100 NVMe as a storage device in the IT industry.

See all answers

Comparisons

Dell PowerStore vs Everpure FlashArray X NVMe

Compared 13% of the time

HPE Alletra Storage vs Everpure FlashArray X NVMe

Compared 10% of the time

Dell PowerMax vs Everpure FlashArray X NVMe

Compared 10% of the time

TrueNAS R-Series vs Everpure FlashArray X NVMe

Compared 8% of the time

VAST Data vs Everpure FlashArray X NVMe

Compared 4% of the time

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Dell PowerStore vs Dell Unity XT

Compared 29% of the time

NetApp AFF vs Dell Unity XT

Compared 13% of the time

Everpure FlashArray vs Dell Unity XT

Compared 10% of the time

HPE 3PAR StoreServ vs Dell Unity XT

Compared 5% of the time

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Dell PowerMax vs IBM FlashSystem 9100 NVMe

Compared 15% of the time

Dell PowerStore vs IBM FlashSystem 9100 NVMe

Compared 12% of the time

Hitachi Virtual Storage Platform vs IBM FlashSystem 9100 NVMe

Compared 11% of the time

Hitachi VSP E Series vs IBM FlashSystem 9100 NVMe

Compared 9% of the time

HPE Alletra Storage vs IBM FlashSystem 9100 NVMe

Compared 8% of the time

More IBM FlashSystem 9100 NVMe Competitors

Product Reports

Buyer's Guide

Everpure FlashArray X NVMe

March 2026

Download Everpure FlashArray X NVMe product report

Buyer's Guide

Dell Unity XT

March 2026

Download Dell Unity XT product report

Buyer's Guide

IBM FlashSystem 9100 NVMe

March 2026

Download IBM FlashSystem 9100 NVMe product report

Also Known As

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

EMC Unity, Dell EMC Unity

IBM FlashSystem 9100, FlashSystem 9100

Overview

Everpure FlashArray X NVMe delivers high performance, reliability, and low latency, making it ideal for block storage in private cloud infrastructures and mission-critical applications.

Boasting robust data reduction, high availability, and seamless scalability, Everpure FlashArray X NVMe supports databases, VMware environments, and machine learning analytics. Known for its intuitive interface, superior support, volume snapshots, and AI-powered analytics, it efficiently manages storage needs, often deployed to replace outdated systems. Users highlight its simplistic management and easy configuration, although opportunities exist to enhance pricing, replication features, VNC integration, and storage capabilities.

What are the key features?

Data Reduction: Effective compression and deduplication improve storage efficiency.
Seamless Scalability: Easily scales to meet growing demands without downtime.
Volume Snapshots: Quickly create snapshots for data protection and recovery.
VMware Compatibility: Integrates smoothly with VMware environments for optimal performance.
AI-Powered Analytics: Provides insights for enhanced storage management and efficiency.

What benefits and ROI should be considered?

Low Latency and High Availability: Ensures rapid data access and uninterrupted service.
Easy Management: Intuitive interface simplifies configuration and monitoring.
Evergreen Model: Continuous upgrades without disruptive migrations.
Enhanced Support: Reliable service and support for critical applications.

Organizations in industries such as finance and healthcare implement Everpure FlashArray X NVMe to bolster data performance and reliability. They leverage its integration capabilities with Oracle databases and SQL workloads, supporting machine learning and virtualization. It's often chosen to upgrade legacy storage systems, ensuring high availability and speed for demanding environments.

Everpure (formerly Pure Storage)

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

IBM FlashSystem 9100 combines the performance of flash and Non-Volatile Memory Express (NVMe) end-to-end with the reliability and innovation of IBM FlashCore technology and the rich features of IBM Spectrum Virtualize - all in a powerful 2U enterprise-class storage system. Providing intensive data driven multicloud storage capacity, FlashSystem 9100 is deeply integrated with the software defined capabilities of IBM Spectrum Storage allowing you to easily add in the multicloud solutions that best support your business.

IBM

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company

Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre

Information Not Available

Buyer's Guide

Dell Unity XT vs. IBM FlashSystem 9100 NVMe

March 2026

Free Report: Dell Unity XT vs. IBM FlashSystem 9100 NVMe

Find out what your peers are saying about Dell Unity XT vs. IBM FlashSystem 9100 NVMe and other solutions. Updated: March 2026.

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