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Dell Unity XT vs Lenovo ThinkSystem DE Series 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:
 

Categories and Ranking

Pure FlashArray X NVMe
Sponsored
Ranking in All-Flash Storage
17th
Average Rating
9.0
Reviews Sentiment
6.7
Number of Reviews
36
Ranking in other categories
NVMe All-Flash Storage Arrays (6th)
Dell Unity XT
Ranking in All-Flash Storage
5th
Average Rating
8.4
Reviews Sentiment
6.5
Number of Reviews
198
Ranking in other categories
No ranking in other categories
Lenovo ThinkSystem DE Series
Ranking in All-Flash Storage
21st
Average Rating
8.6
Reviews Sentiment
7.9
Number of Reviews
13
Ranking in other categories
No ranking in other categories
 

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
ProductMarket Share (%)
Dell Unity XT5.7%
Pure FlashArray X NVMe1.5%
Lenovo ThinkSystem DE Series2.0%
Other90.8%
All-Flash Storage
 

Featured Reviews

Jaehoon Oh - PeerSpot reviewer
Chief Technology Officer at Lambda256
Supports efficient storage management through volume snapshots and offers reliable non-disruptive upgrades
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could be enhanced. I can see the performance statistics in the Pure Storage console, but it does not show the performance by 4K byte unit. It displays IOPS and bandwidth, but IOPS is about real use, and I want to know how many IOPS are currently running in 4K byte units. I cannot see that IOPS because most storage systems report their performance by 4K byte unit. I want to see Pure Storage performance by 4K byte unit to compare with other storage or other internal NVMe SSD.
DK
Sales Account Manager - BFSI Sector at Frontier Business systems
Customer needs are addressed effectively with collaborative sales and service support
Recently, customers have been asking for a cloud tiering option in storages. Some Dell storages do not have cloud tiering, which is an optional commercial feature. NetApp's FSA model 2750 comes with an inbuilt cloud tiering option. In the future, if Dell storages include this option, especially for Unity, it would help us target SME or medium enterprises for quicker closures and support the sales team.
GP
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…

Quotes from Members

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

Pros

"It has benefited my organization because it has reduced time to insights."
"The solution uses newer technology for deduplication and compression."
"It's helped us because we've changed fundamentally what we talk about. We don't talk about storage and different tiers of storage anymore nor do we talk about servers. We talk now about applications and how applications impact the business and end users."
"We are satisfied with the performance as it is significantly faster compared to traditional storage options."
"The standout features for us in Pure FlashArray X NVMe are its robust DDoS protection, seamless transparent failover, and failback capabilities ensuring high availability."
"It's incredibly easy to use and greatly simplified our ability to both deploy and manage our storage subsystems."
"Pure FlashArray X NVMe will quickly overcome all the hurdles you face, including network and latency issues."
"The most valuable features of this solution are its ease of use and performance."
"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."
"I like the idea that it can compress and dedupe inline. That is quite a stunning feature for mid-range customers."
"Dell Unity XT is quite scalable and can be scaled up to the petabyte level."
"The most valuable feature is the integration with vCenter."
"The initial setup was very straightforward. Migration was smooth and configuration of the storage was quick and simple. The time needed to put it into production was less than expected, and data migration itself went without a glitch."
"The valuable features of Unity include that it's flexible, has a friendly user-interface, and provides good performance."
"We have simplified it down to where we're using one storage pool inside the Unity, whereas on the VNX, we had multiple storage pools. This has simplified that aspect for us. It would depend on each organization. We're heavy into VMware and this ties into it so simply. It's made it a lot easier for us. I create a datastore inside Unity, it just shows up in VMware. I love that tie-in."
"We were able to integrate it very quickly with other solutions."
"Lenovo ThinkSystem DE Series is simple to use"
"Lenovo ThinkSystem DE Series is highly reliable, especially for block-level storage. It is stable, with minimal downtime and no issues beyond user errors."
"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."
"ThinkSystem's storage performs well, and the price per gigabyte is good, especially on SSD solutions. It's also easy to use."
"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."
"This solution is good for virtualization and meets the need for CPU and RAM requirements."
"The solution's initial setup process is easy."
 

Cons

"Adding some functions to the product would be beneficial."
"The software layer has to improve."
"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."
"There is room for improvement in the pricing of the product."
"We've seen that when we create a POD in synchronous mode, it increases the latency."
"There is room for improvement in catering to midrange storage needs, especially for customers seeking Enterprise-class features."
"It feels more suitable for small and medium-sized businesses rather than enterprises."
"There are some challenges with data encryption and reduction."
"It's very frustrating that it's not backward-compatible with the previous platforms, so it's a struggle for a lot of our customers."
"In the dashboard there could be notification of duplicate files and the like, so we don't have to rely on Windows to do that."
"A customer had to buy VMX because Unity didn't have WORM."
"The support team is well-versed in the AMG solution, having received comprehensive training. They also boast strong partnerships in both VNAM and Korea. The system's user-friendliness is a primary consideration in their choice of solution, emphasizing the importance of service. They place a strong emphasis on service, occasionally requiring approvals. However, with full installations, they have achieved almost uniformity. Their storage approach differs from a consolidated business-based model; instead, it is application-centric. Their investment in solutions is geared towards specific needs, such as the banking or information system, acquiring smaller storage units individually."
"If there's anything Dell EMC could do to get the same performance for a cheaper price, that would be great."
"Dell could improve Unity XT by adding support for NVMe."
"Improve the administrative user interface so it is easier to work with. Currently, a simple task, such as removing a host from 100 LUNS, takes a lot of time. If they could improve LUN to host model to be more like the EMC VPLEX, for example, it would be great."
"It is missing some features, like deduplication."
"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 type of connection that is used in Lenovo ThinkSystem DE Series should be improved."
"There could be a snapshot feature in the solution."
"The product could support advanced software integrations."
"In the next release, I would like to see more functionality. But, again, it is an entry-level product."
"ThinkSystem could be better integrated with backup software like Commvault, Veritas, or Symantec."
"The features are limited."
"Improvements can be made to the product's performance."
 

Pricing and Cost Advice

"The support cost per array is about $20,000 a year for 24/7 support."
"The product is expensive."
"We pay approximately $50,000 USD per year in licensing fees."
"Our licensing fees are $500,000+ USD."
"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."
"As far as the licensing costs, everything is included in the license."
"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."
"Licensing is easy since all the software is included."
"The solution is very expensive."
"It scales, but then you have to buy additional stuff."
"The price of Dell EMC Unity XT is higher compared to other solutions. The price should be less expensive."
"For costing, you have to have a budget in mind because SANs can be fairly expensive and EMC offers a wide range of products."
"The support you're getting with it is probably an underestimated value that comes with the box you're buying."
"The price of Dell EMC Unity XT is not reasonable. They should lower it because the trend is to move to the cloud. They have to protect their market by giving commercial or financial incentives."
"The solution is very expensive."
"For an all-flash setup, the cost is around $20,000 for a decent configuration."
"The best thing about this solution is its price, which reduces our costs."
"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."
"All of the features are bundled together, and you can renew the bundle with all of the features included."
"The pricing is fair and low compared to other products in this category."
"We have a five-year contract for providing support."
"The pricing for this solution is good compared to HP or Dell EMC."
"The solution's price could be better."
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Top Industries

By visitors reading reviews
Computer Software Company
12%
Manufacturing Company
11%
Financial Services Firm
11%
Government
6%
Computer Software Company
14%
Manufacturing Company
11%
Financial Services Firm
6%
Comms Service Provider
5%
Computer Software Company
16%
Comms Service Provider
9%
Manufacturing Company
9%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business15
Midsize Enterprise11
Large Enterprise12
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise49
Large Enterprise94
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise3
 

Questions from the Community

What do you like most about Pure FlashArray X NVMe?
Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use.
What is your experience regarding pricing and costs for Pure FlashArray X NVMe?
The price of Pure FlashArray X NVMe is very expensive, though I do not know the actual price because I am using the E...
What needs improvement with Pure FlashArray X NVMe?
I have no specific improvements to suggest for Pure FlashArray X NVMe at this time. The performance statistics could ...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
I saw that you have doubts about what you chose. I have a lot of experience with the constructor, honestly I can reco...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
They’re both great solutions and I’ve used both. EMC is being VERY aggressive on pricing which may be the undoing of...
What is the Biggest Difference Between Dell EMC Unity and NetApp AFF?
First of all the decision should be taken looking at similar products in terms of capacity and performance. I will sh...
What 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.
What needs improvement with Lenovo ThinkSystem DE Series?
The type of connection that is used in Lenovo ThinkSystem DE Series should be improved.
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...
 

Also Known As

Pure FlashArray//X NVMe, Pure FlashArray//X, FlashArray//X
EMC Unity, Dell EMC Unity
ThinkSystem DE Series
 

Overview

 

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company
Draper, Rio Grande Pacific, Royal Victoria Regional Health Centre
Information Not Available
Find out what your peers are saying about Dell Unity XT vs. Lenovo ThinkSystem DE Series and other solutions. Updated: February 2026.
882,594 professionals have used our research since 2012.