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 #22 with an average rating of 10.0. Dell Technologies holds a 5.9% mindshare in AFS, compared to Lenovo’s 1.8% 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: March 2026).

Buyer's Guide

Dell Unity XT vs. Lenovo ThinkSystem DE Series

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 Lenovo ThinkSystem DE Series is 1.8%, down from 2.5% 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%
Lenovo ThinkSystem DE Series	1.8%
Other	90.7%

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 most valuable feature of this solution is its ease of use."

"Pure Storage has signature security technology, which cannot be deleted, even if you are an administrator."

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

"The latency is good."

"Overall stability is very good. It is a very stable solution."

"We're able to get higher-density workloads on the same infrastructure, and we have a smaller physical footprint. The performance is excellent – during our test the bottlenecks are never on the X array, it just keeps picking up the pace to match what you need. The real-time visibility is a differentiator in my opinion."

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

"I use the tool for Oracle databases, Oracle virtual machines, and Oracle Linux databases. I'm on the storage side, not a database administrator."

More Everpure FlashArray X NVMe pros

"The most valuable features include snapshots, Thin Clones, and deduplication and compression."

"Compared to older generations of arrays there is quite an improvement, compared to the older VNXs, for example. It depends on you use it, but for our purposes, we find Unity simple to use."

"Replication of the communication object (COB) scenarios"

"For me, the most valuable feature is the ease of management."

"The hardware itself, it differs from Compellent and differs from the VNX before it. It doesn't have a separate file harbor that goes with it, there are no separate NAS heads. It's 2U, you have file and block storage, so you get a quite a lot of services for a small footprint."

"There are also DR and data protection functions that we found in the new Unity, now that we are stepping up from VNX and other storage appliances, that we've started implementing."

"We've never had an issue with storage."

"It's unified, it does block and file, so that is pretty important to my customers who might have file servers around their environment. I can roll them all up into a single array, as well as provide block storage for them on one array."

More Dell Unity XT pros

"This solution is good for virtualization and meets the need for CPU and RAM requirements."

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

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

"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."

"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."

"The solution is very easy to set up."

"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."

"Its initial setup process is easy."

More Lenovo ThinkSystem DE Series pros

Cons

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

"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."

"In the future, I would like to see integration with enterprise backup systems."

"The software layer has to improve."

"In the next release, I would like to see real-time analytics for further insight into consumption models."

"It is on the expensive side."

"I would like to see replication and DR features in the next release of this solution."

"They could add more support for file storage and different types of storage."

More Everpure FlashArray X NVMe cons

"As the solution continues to grow and gain more traction, things will come up that will just continue to deepen the integration between VMware, vCenter, and all those other components. Anything in the divisibility there and additional tools is always great."

"I think there are a couple of things on the file side that we're lacking from the VNX world. It would be nice if we got some of those back. I think there are limitations on how many file systems you can back up at a time. Whereas you can do, I believe, eight continuous per data mover on the file side on the VNX, you can only do something like two or four on Unity. If they could step up to that, that would be good."

"In future releases, I would like to see automatic upgrades from one to the next, when this system is coming out and the next one is coming in; more akin to what Pure Storage is doing. That would be really helpful."

"The pricing is a bit higher than expected, and this is an area where I see room for improvement."

"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."

"If you compare it with VMAX, where we communicate with the box through Solutions Enabler and there are a lot of commands and a lot of flexibility, the command line for Unity needs to enhanced."

"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."

"This product has some scalability issues. Before you can get support, you have to look for the service tag number on your product which could make it difficult to access support."

More Dell Unity XT cons

"Its performance could be faster."

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

"The features are limited."

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

"There could be a snapshot feature in the solution."

"ThinkSystem could be better integrated with backup software like Commvault, Veritas, or Symantec."

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

"The product could support advanced software integrations."

More Lenovo ThinkSystem DE Series cons

Pricing and Cost Advice

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

"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."

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

"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."

"As far as the licensing costs, everything is included in the license."

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

"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."

More Everpure FlashArray X NVMe pricing and cost advice

"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."

"I liked the price point when we purchased it."

"Obtaining a warranty is easy."

"The solution is very expensive."

"Just from an overall power and heating usage, it costs substantially less than some of our existing solutions"

"As far as licensing goes, I love how VMware works with Dell EMC Unity. It's great. They work hand in hand. They have made it so simple."

"Here is our major complaint with pricing. Dell EMC comes to us and gives us a price. We are like, "Well, this doesn't even compare to what we got on the last project." We say, "No, you should bring it down to this level." Then, they come back again and we are sort of in the middle again. I am like, You already sold us other stuff at a better price. We are not going to just say, 'Yes,' because we are out of time.""

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

More Dell Unity XT pricing and cost advice

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

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

"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 solution's price could be better."

"We have a five-year contract for providing support."

"It is an expensive solution."

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

10%

Government

Computer Software Company

13%

Manufacturing Company

11%

Financial Services Firm

Government

Computer Software Company

15%

Comms Service Provider

10%

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...

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 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 Everpure FlashArray X NVMe

Compared 13% of the time

Dell PowerMax vs Everpure FlashArray X NVMe

Compared 11% of the time

HPE Alletra Storage vs Everpure FlashArray X NVMe

Compared 10% of the time

NetApp AFF 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 31% of the time

NetApp AFF vs Dell Unity XT

Compared 14% of the time

Everpure FlashArray vs Dell Unity XT

Compared 10% of the time

Hitachi Virtual Storage Platform vs Dell Unity XT

Compared 5% of the time

Huawei OceanStor vs Dell Unity XT

Compared 1% of the time

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Dell PowerStore vs Lenovo ThinkSystem DE Series

Compared 19% of the time

IBM FlashSystem vs Lenovo ThinkSystem DE Series

Compared 10% of the time

Lenovo ThinkSystem DM Series vs Lenovo ThinkSystem DE Series

Compared 8% of the time

NetApp AFF vs Lenovo ThinkSystem DE Series

Compared 8% of the time

Huawei OceanStor Dorado vs Lenovo ThinkSystem DE Series

Compared 5% of the time

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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

All-Flash Storage

February 2026

Download Lenovo ThinkSystem DE Series product report

Also Known As

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

EMC Unity, Dell EMC Unity

ThinkSystem DE Series

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

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

March 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: March 2026.

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