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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
7.1
Number of Reviews
196
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 July 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.8%, up from 0.8% compared to the previous year. The mindshare of Dell Unity XT is 6.7%, down from 10.2% compared to the previous year. The mindshare of Lenovo ThinkSystem DE Series is 2.5%, down from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
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

"The latency is good."
"Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use."
"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."
"The most valuable feature of this solution is reliability."
"Pure Storage has signature security technology, which cannot be deleted, even if you are an administrator."
"The solution is scalable."
"The solution is very straightforward to set up."
"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."
"We have resolved IT challenges with this solution. It sped up our environment. We went from spinning disk to all-flash, which reduced our footprint."
"It has improved the utilization of our own internal resources and performance across our managed service platform, meeting our customers SLAs."
"The Unisphere management interface: We are very familiar with it. It manages all the EMC devices that we have. Management is easy because it is part of Unisphere, which is self-learning."
"It's very reliable. I have not had an issue with Dell EMC Unity."
"The most valuable feature of Dell Unity XT is the GUI, it is very good. End users can manage using it. Additionally, the documentation is of high quality and it integrates well."
"It has the same operating system for both file and block, and it actually simplifies everything. And it's much smaller compared to VNX."
"It is lightning fast, low on power and heat, and has a small footprint with great performance."
"The most valuable feature of Dell Unity XT is data duplication. Additionally, the management interface is simple, and is not a hassle using it. You don't need too much to learn or to be familiarized with it."
"This solution is good for virtualization and meets the need for CPU and RAM requirements."
"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."
"I would rate the stability of Lenovo ThinkSystem DE Series as a ten."
"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."
"We have been working with the solution for around a year and so far it has shown itself to be stable."
"The solution is very easy to set up."
 

Cons

"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."
"They could add more support for file storage and different types of storage."
"I'd like to see the product implement active replication for vehicles such as VMware."
"The tool's portfolio is minimal. It is expensive."
"In terms of what needs improvement, the dashboard and management could be simplified."
"There is room for improvement in the pricing of the product."
"Managing data isn't difficult for me. The performance is usually perfect, but we sometimes have capacity problems."
"The UI for this solution needs to be improved."
"Dell Unity XT could add a unit-to-unit replication. We haven't seen that because we don't have an additional one to test. However, it is not an improvement, but something that we would like to have visibility on how it's done or how it works."
"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."
"I would like to see a more seamless virtual box integration with the physical box which can replicate, because the setup of the replication is very difficult right now."
"The biggest one for us, and the reason we don't use it more, is that we can't throttle the replication speed. If it's on, it's on. So we have to be a little more WAN-sensitive, in some applications, which means we can't put it everywhere. That's the biggest issue for us, by far."
"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."
"The reporting should be better. In other systems, you can create many different kinds of reports but this is not the case with Dell."
"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."
"Dell could improve Unity XT by adding support for NVMe."
"There could be a snapshot feature in the solution."
"In the next release, I would like to see support for Hyper-converged infrastructure."
"It would be useful to have structured solutions replicated to other sites."
"In the next release, I would like to see more functionality. But, again, it is an entry-level product."
"Improvements can be made to the product's performance."
"The product could support advanced software integrations."
"The type of connection that is used in Lenovo ThinkSystem DE Series should be improved."
"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."
 

Pricing and Cost Advice

"Given its price, Pure is not the first option."
"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."
"With VMware, we pay $300,000 annually."
"As far as the licensing costs, everything is included in the license."
"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."
"Our licensing fees are $500,000+ USD."
"The licensing is on a yearly basis."
"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."
"The flexibility is important. We still have a lot of customers that have a use case for non-flash, yet you can also build the flash version as well."
"Our CAPEX was close to $42,000 and operating costs are below $1000."
"In the SQL Server instances in our data warehouse, we immediately saw a great return on investment."
"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."
"Our big return of investment is the ability to scale and not add FTE counts nor extra administration."
"This solution offers great pricing."
"The solution is very expensive."
"The pricing is fair and low compared to other products in this category."
"All of the features are bundled together, and you can renew the bundle with all of the features included."
"For an all-flash setup, the cost is around $20,000 for a decent configuration."
"The solution's price could be better."
"The pricing for this solution is good compared to HP or Dell EMC."
"We have a five-year contract for providing support."
"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."
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Top Industries

By visitors reading reviews
Computer Software Company
14%
Financial Services Firm
11%
Manufacturing Company
11%
Government
6%
Educational Organization
27%
Computer Software Company
13%
Manufacturing Company
8%
Government
5%
Computer Software Company
17%
Manufacturing Company
8%
Comms Service Provider
7%
Financial Services Firm
5%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

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 needs improvement with Pure FlashArray X NVMe?
Adding some functions to the product would be beneficial. Storage replication should be essential, and the analytics ...
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: July 2025.
861,490 professionals have used our research since 2012.