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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
14th
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
6th
Average Rating
8.4
Reviews Sentiment
6.6
Number of Reviews
197
Ranking in other categories
No ranking in other categories
Lenovo ThinkSystem DE Series
Ranking in All-Flash Storage
20th
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 September 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 1.0%, up from 0.7% compared to the previous year. The mindshare of Dell Unity XT is 6.3%, down from 10.0% compared to the previous year. The mindshare of Lenovo ThinkSystem DE Series is 2.4%, down from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Market Share Distribution
ProductMarket Share (%)
Dell Unity XT6.3%
Pure FlashArray X NVMe1.0%
Lenovo ThinkSystem DE Series2.4%
Other90.3%
All-Flash Storage
 

Featured Reviews

Jaehoon Oh - PeerSpot reviewer
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.
Syed Habib - PeerSpot reviewer
Efficient data replication and fast IOPS have improved operational performance
Dell and a partner jointly implemented this solution in Auvink. We installed the Flash, which makes our IO operations fast and efficient. Replication is available, allowing us to replicate data simultaneously from one site to another. All-flash technology and vTXT enhance speed, and the IOPS are faster. The cache's IOPS are much better. Snapshots provide a unique feature for testing and make management more comfortable and easy. The platform is multi-supported and certification is more convenient and easy to manage.
Gastone Canali - PeerSpot reviewer
Provides good stability and is reliable in terms of performance
The solution is reliable in terms of performance They should include a snapshot feature for the solution. We have been using the solution for two to three years. The solution is stable. We have 60 solution users in our organization. The solution's initial setup process is easy. It takes three…

Quotes from Members

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

Pros

"I appreciate the performance."
"I use the tool for Oracle databases, Oracle virtual machines, and Oracle Linux databases. I'm on the storage side, not a database administrator."
"The initial setup was extremely simple and straightforward."
"Pure FlashArray X NVMe has low latency and high Ops. It is an evergreen model."
"Offers excellent features like efficient data reduction, a reliable SafeMode, and a great support model for continuous assistance and updates."
"The most valuable feature of this solution is reliability."
"The Pure1 component is most valuable at this point in time when comparing it with EMC. Pure1 is where you can have your diagnostics in the cloud, so you can look at things from your mobile phone."
"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."
"The solution allows for easy, useful replication with good features for VPLEX and VIVO."
"The flash aspects of the Unity make it incredibly fast. The fact that you get that much storage directly on what is basically a 3U box to us, that density has been really useful."
"It is easy to scale, maintain, and manage."
"It is scalable, and we usually recommend Dell Unity XT to small and medium companies."
"The inline deduplication and data reduction capabilities have been the most valuable."
"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."
"We particularly like the user interface on cloud IQ with this product."
"It's easy for us to use because we use other solutions which are built for Unity, like VMware, which are recovery points. They work with the Dell EMC Unity system, as these products integrate well in our environment."
"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."
"We have been working with the solution for around a year and so far it has shown itself to be stable."
"Lenovo ThinkSystem DE Series is simple to use"
"Fewer features is not necessarily a negative as it leads to simpler operation and lower price."
"This solution is good for virtualization and meets the need for CPU and RAM requirements."
"ThinkSystem's storage performs well, and the price per gigabyte is good, especially on SSD solutions. It's also easy to use."
"The solution's initial setup process is easy."
"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."
 

Cons

"Many options to check performance, like read, writes, random writes, and random reads, are missing in Pure FlashArray X NVMe."
"Efficiency improvements would always be welcome, but I'm not sure if they could get more efficient."
"Adding some functions to the product would be beneficial."
"In the next release, I would like to see real-time analytics for further insight into consumption models."
"The tool's pricing is higher than competitors."
"Managing data isn't difficult for me. The performance is usually perfect, but we sometimes have capacity problems."
"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."
"Sometimes the response time is higher than expected due to a lack of issues."
"I haven't seen the roadmap for this solution."
"Unity only does compression. It would be nice if there was a deduplication feature as well. At my previous job, we used XtremIO and that was deduplication and not compression, and I think we got more out of it because the more OSs you have that are the same, the fewer copies it needs to keep of all that data. So, the deduplication would be a nice feature to have."
"We would like to see more advanced integration capability added to this solution."
"One of the issues we've had is that controllers have crashed several times... We've had a lot of problems with the storage processor, SPBs. We've actually had them crash."
"Because we can do synchronous replication between the two sites, this made the setup challenging for this piece. They did not know how to set this up initially. We ended up having to do bidirectional synchronous replication."
"It needs more functionality and the ability to move across more landscapes."
"I would like better integration with RecoverPoint. My major issue with the solution, all around, has been RecoverPoint more than Unity. While I like the easy user interface, I would like some more advanced features for troubleshooting built into the product, so that we can do more in-depth problem-solving."
"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."
"It would be useful to have structured solutions replicated to other sites."
"Its performance could be faster."
"The product could support advanced software integrations."
"There could be a snapshot feature in the solution."
"In the next release, I would like to see support for Hyper-converged infrastructure."
"The features are limited."
"Improvements can be made to the product's performance."
 

Pricing and Cost Advice

"Our licensing fees are $500,000+ USD."
"Given its price, Pure is not the first option."
"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."
"The licensing is on a yearly basis."
"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."
"The product is expensive."
"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 solution is extremely functional for the price that we pay for it. It is worth the investment."
"The price of Dell Unity XT is reasonable. However, if you are buying a custom solution, it can come at a considerable price."
"With the large Unity that we bought, it has saved us about one and a half rack space. That's our return on investment on our flash array. We also need less Fibre Channel connectivity."
"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."
"Pricing for this product is manageable, though slightly higher than comparable products."
"We checked both HP and Dell and we determined that Dell EMC was a better option."
"The solution should be cheaper."
"The price is very reasonable."
"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."
"The pricing for this solution is good compared to HP or Dell EMC."
"It is an expensive solution."
"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."
"For an all-flash setup, the cost is around $20,000 for a decent configuration."
"The solution's price could be better."
"We have a five-year contract for providing support."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Manufacturing Company
10%
Financial Services Firm
10%
Government
6%
Computer Software Company
17%
Manufacturing Company
11%
Government
6%
Financial Services Firm
6%
Computer Software Company
16%
Manufacturing Company
8%
Comms Service Provider
8%
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 Business61
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: September 2025.
867,676 professionals have used our research since 2012.