Dell Unity XT vs Lenovo ThinkSystem DE Series comparison

Dell Technologies and Lenovo are both solutions in the All-Flash Storage category. Dell Technologies is ranked #5 with an average rating of 8.6, while Lenovo is ranked #21 with an average rating of 10.0. Dell Technologies holds a 5.7% mindshare in AFS, compared to Lenovo’s 2.0% mindshare. Additionally, 96% of Dell Technologies users are willing to recommend the solution, compared to 100% of Lenovo users who would recommend it.

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Executive SummaryUpdated on Sep 18, 2024

Dell Unity XT and Lenovo ThinkSystem DE Series are two competing storage solutions. Dell Unity XT is preferred for its robust software capabilities, while Lenovo ThinkSystem DE Series is appreciated for its hardware reliability and scalable performance.

Features: Dell Unity XT users value its comprehensive data management features, strong integration with cloud services, and robust software functionalities. Lenovo ThinkSystem DE Series is praised for its high throughput, effective data protection mechanisms, and scalable performance.

Room for Improvement: Dell Unity XT users suggest improvements in hardware upgrade processes, need for faster support responses, and better hardware reliability. Lenovo ThinkSystem DE Series feedback indicates a demand for more intuitive monitoring tools, better documentation, and improved user guidance.

Ease of Deployment and Customer Service: Dell Unity XT is highlighted for its relatively straightforward deployment, but has mixed reviews regarding customer service efficiency. Lenovo ThinkSystem DE Series is recognized for quick and flexible deployment options, receiving positive feedback for responsive customer service.

Pricing and ROI: Dell Unity XT is perceived as costly, but users believe it offers good long-term ROI due to its comprehensive feature set. Lenovo ThinkSystem DE Series is favored for its competitive pricing and immediate performance benefits, delivering a quicker ROI.

To learn more, read our detailed Dell Unity XT vs. Lenovo ThinkSystem DE Series Report (Updated: February 2026).

Buyer's Guide

Dell Unity XT vs. Lenovo ThinkSystem DE Series

February 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

Pure FlashArray X NVMe

Mindshare comparison

As of February 2026, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 1.5%, up from 0.7% compared to the previous year. The mindshare of Dell Unity XT is 5.7%, down from 8.7% compared to the previous year. The mindshare of Lenovo ThinkSystem DE Series is 2.0%, down from 2.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

All-Flash Storage Market Share Distribution
Product	Market Share (%)
Dell Unity XT	5.7%
Pure FlashArray X NVMe	1.5%
Lenovo ThinkSystem DE Series	2.0%
Other	90.8%

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

Giorgio Pozzi

System Administrator at PORTGUARDIAN.COM SRL

Performance and cost-effectiveness are maximized with seamless setup and significant ROI

I use Lenovo ThinkSystem DE Series to replace the old storage in our infrastructure. Additionally, I use it in customer infrastructures to migrate from the old storage to the new one On the M storage, I find the best features to be deduplication and compression. On the DE storage, the most…

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

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

"The initial setup was extremely simple and straightforward."

"The latency is good."

"It's incredibly easy to use and greatly simplified our ability to both deploy and manage our storage subsystems."

"It is very easy to install and configure. It has got excellent diagnostics. If you really need to see how the box is performing, the console gives you a lot of information. You can set thresholds as well as alerts based on the thresholds, which is a very powerful functionality. They are very proactive. They know how to monitor and manage the systems. They see a problem, and they are all over it before us. They see the problem before we see it, which is very good."

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

"The best features of Pure FlashArray X NVMe include the volume snapshot capabilities, which allow us to save most of the storage space by volume snapshots periodically."

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

More Pure FlashArray X NVMe pros

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

"Veeam Backup integration: Veeam is the defacto standard for backing up of virtual environments."

"Stable flash storage platform with good scalability, efficiency, and speed."

"All-flash performance, Snapshotting capabilities and replication are all valuable features."

"The performance is great. We have four or five different Unity arrays, and they have all run flawlessly."

"VMware integration makes the life of our engineers easier, as we are almost 100% virtualized and this feature is used on a daily basis."

"On the Data Domain side, the most attractive feature is the compression ratio, which none of the other products in the market are currently able to provide. On the Unity side, what customers mostly like is the availability guarantee."

"The initial setup is very easy. I would rate my experience with the initial setup a nine out of ten, with one being difficult and ten being easy."

More Dell Unity XT pros

"The solution is very easy to troubleshoot. It's one of the most valuable features. It also doesn't take long to deploy and normally it comes with a three-year warranty."

"The most valuable features of the Lenovo ThinkSystem DE Series are the dual controllers, available installation documentation, and the option of multiple host bus adapter interfaces."

"The solution's initial setup process is easy."

"Lenovo ThinkSystem DE Series is highly reliable, especially for block-level storage. It is stable, with minimal downtime and no issues beyond user errors."

"Lenovo ThinkSystem DE Series is quite an elementary box, no frills. It does not have all the functionality of the DM but it is acceptable, it does its task. It integrates pretty well."

"Fewer features is not necessarily a negative as it leads to simpler operation and lower price."

"Its initial setup process is easy."

"The solution is very easy to set up."

More Lenovo ThinkSystem DE Series pros

Cons

"We've seen that when we create a POD in synchronous mode, it increases the latency."

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

"We need better data deduplication."

"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."

"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."

"It is on the expensive side."

"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."

"I'd like to see the product implement active replication for vehicles such as VMware."

More Pure FlashArray X NVMe cons

"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."

"Dell EMC Unity's competitor, NetApp, has a similar product. However, it has a clustering technology where you can group multiple systems together, then you can move data from one system to another seamlessly. I would like the Unity to do that."

"The pricing is a bit higher than expected."

"In terms of what could be improved, I would say the deduplication part, because for large deduplications, you need an extra appliance to do it in order to avoid having problems in performance. I think that could be improved, because everything should be included in the product, not with an appliance from the outside."

"I miss storage groups. Now, if I have to add a LUN to a cluster, multiple host, I have to know which host is in that cluster. I have to write it down and that makes it hard. In VNX and earlier, I could simply put a LUN on a storage group and every host in the group had the LUN. This lack bothers me a lot because it takes a lot of time and mistakes are made. Sometimes, a Hyper-V host gets a VMware LUN and vice-versa. Not good."

"More integration with VMware would always be helpful, plugins that go directly into the vSphere management. A single pane of glass is always beneficial."

"I would like to see more compression and deduplication added to the solution. Today, our compression is about 2:1 and other solutions give us about 4:1 or 5:1."

"Currently, the protocol SNMP is not implemented. That's a problem, as we follow this protocol and I can't check the integrity of this equipment."

More Dell Unity XT cons

"The type of connection that is used in Lenovo ThinkSystem DE Series should be improved."

"In the next release, I would like to see more functionality. But, again, it is an entry-level product."

"Its performance could be faster."

"The difficult part comes when dealing with the host. You have to enable multi-pathing and other aspects that are needed for proper configuration. I don't know if there is room for a more hyper-conversion structure to work with, but this would be easier."

"The solution could be more scalable, although it suits our present needs."

"Improvements can be made to the product's performance."

"Usually, when a part fails, we have to replace it and it takes a while. It would be better if the part could be available locally here in Kenya so we don't have to wait so long to repair the solution."

"It would be useful to have structured solutions replicated to other sites."

More Lenovo ThinkSystem DE Series cons

Pricing and Cost Advice

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

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

"The product is expensive."

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

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

"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'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."

"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."

More Pure FlashArray X NVMe pricing and cost advice

"The price in our country is very expensive and some of our customers opt for lower-cost alternatives."

"I rate Dell Unity XT’s pricing a nine out of ten."

"We looked at HPE Nimble but the price of the Unity XT was very good compared to the competition."

"The price is up a little bit from what we used to pay so I'm hoping that it's a little bit of a better system than the VNXe was. But I still think it's a good value. It's new, so I'm sure there's room for the pricing to drop."

"We purchased a five-year warranty."

"While it has a good price to start, they could always make it cheaper."

"It's an expensive solution, particularly for medium companies. One device costs about 30,000 euros. The support contract is quite expensive as well. We are currently looking for other lower-cost solutions."

"This solution offers great pricing."

More Dell Unity XT pricing and cost advice

"The solution's price could be better."

"All of the features are bundled together, and you can renew the bundle with all of the features included."

"The price of the Lenovo ThinkSystem DE Series is a one-time purchase. There is a global price list available to find the price of the solution."

"The best thing about this solution is its price, which reduces our costs."

"For an all-flash setup, the cost is around $20,000 for a decent configuration."

"The pricing for this solution is good compared to HP or Dell EMC."

"It is an expensive solution."

"The pricing is fair and low compared to other products in this category."

More Lenovo ThinkSystem DE Series pricing and cost advice

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Manufacturing Company

11%

Financial Services Firm

11%

Government

Computer Software Company

14%

Manufacturing Company

11%

Financial Services Firm

Government

Computer Software Company

16%

Comms Service Provider

Manufacturing Company

University

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	10
Midsize Enterprise	3

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...

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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...

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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 Lenovo ThinkSystem DE Series?

The price of Lenovo ThinkSystem DE Series is very good. We chose this type of storage for the performance and the price.

See all answers

What needs improvement with Lenovo ThinkSystem DE Series?

The type of connection that is used in Lenovo ThinkSystem DE Series should be improved.

See all answers

What is your primary use case for Lenovo ThinkSystem DE Series?

I use Lenovo ThinkSystem DE Series to replace the old storage in our infrastructure. Additionally, I use it in custom...

See all answers

Comparisons

Dell PowerStore vs Pure FlashArray X NVMe

Compared 16% of the time

Dell PowerMax vs Pure FlashArray X NVMe

Compared 12% of the time

HPE Alletra Storage vs Pure FlashArray X NVMe

Compared 10% of the time

TrueNAS R-Series vs Pure FlashArray X NVMe

Compared 9% of the time

TrueNAS X-Series vs Pure FlashArray X NVMe

Compared 5% of the time

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Dell PowerStore vs Dell Unity XT

Compared 34% of the time

NetApp AFF vs Dell Unity XT

Compared 12% of the time

Pure Storage FlashArray vs Dell Unity XT

Compared 9% of the time

HPE Alletra Storage vs Dell Unity XT

Compared 5% of the time

More Dell Unity XT Competitors

Dell PowerStore vs Lenovo ThinkSystem DE Series

Compared 22% of the time

IBM FlashSystem vs Lenovo ThinkSystem DE Series

Compared 11% of the time

NetApp AFF vs Lenovo ThinkSystem DE Series

Compared 9% of the time

Lenovo ThinkSystem DM Series vs Lenovo ThinkSystem DE Series

Compared 9% of the time

HPE StoreOnce vs Lenovo ThinkSystem DE Series

Compared 5% of the time

More Lenovo ThinkSystem DE Series Competitors

Product Reports

Buyer's Guide

Pure FlashArray X NVMe

January 2026

Download Pure FlashArray X NVMe product report

Buyer's Guide

Dell Unity XT

February 2026

Download Dell Unity XT product report

Buyer's Guide

All-Flash Storage

February 2026

Download Lenovo ThinkSystem DE Series product report

Also Known As

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

EMC Unity, Dell EMC Unity

ThinkSystem DE Series

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 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

The DE All-Flash Series delivers the performance of more than 2,000 15k rpm HDDs, yet requires only 2% of the rack space, power, and cooling. Because it consumes 98% less space and power, DE Series can significantly improve the overall efficiency of your IT operations while continuing to meet your performance requirements.

Lenovo

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. Lenovo ThinkSystem DE Series

February 2026

Free Report: Dell Unity XT vs. Lenovo ThinkSystem DE Series

Find out what your peers are saying about Dell Unity XT vs. Lenovo ThinkSystem DE Series and other solutions. Updated: February 2026.

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