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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

Everpure FlashArray
Sponsored
Ranking in All-Flash Storage
4th
Average Rating
9.0
Reviews Sentiment
7.4
Number of Reviews
213
Ranking in other categories
No ranking in other categories
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
22nd
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 April 2026, in the All-Flash Storage category, the mindshare of Everpure FlashArray is 7.9%, up from 6.3% compared to the previous year. The mindshare of Dell Unity XT is 5.9%, down from 7.8% compared to the previous year. The mindshare of Lenovo ThinkSystem DE Series is 1.7%, down from 2.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
All-Flash Storage Mindshare Distribution
ProductMindshare (%)
Everpure FlashArray7.9%
Dell Unity XT5.9%
Lenovo ThinkSystem DE Series1.7%
Other84.5%
All-Flash Storage
 

Featured Reviews

Sowjanya MV - PeerSpot reviewer
Technical Lead at Wipro Limited
Has improved performance for mission-critical workloads and enabled seamless non-disruptive upgrades
The availability is 99.99%, which is the main factor any customer would need because their data should be available whenever they want to access it. This is one main critical thing. It is very easy to upgrade since Pure Storage FlashArray handles it well. Everything is non-disruptive now; previously, there were forklift shifts, but now that is not the case. Pure Storage FlashArray says no to forklift upgrades. Usually hardware requires downtime, but Pure Storage FlashArray has improved their footprint so that they are not asking for downtime; everything is just a non-disruptive activity, which is why customers are more inclined towards Pure Storage FlashArray. Customers want more of the models in their environment due to the performance they are giving, and everything is in one Pure1 Array console where we can view all the models on one page or just an orchestration tool. You don't miss anything; you have replication, notifications about replication, and details about which host groups replication is happening in and if that replication is successful or failed. On a daily basis, our purpose is to create volumes for infrastructure; our daily activities include creating volumes and mapping them to the host, doing any migrations from a VM, clearing the data stores, and carving the volumes to those VMs. One key factor is the data compression with a ratio of 5:1, focusing on space efficiency, inline deduplication, and the compression Pure Storage FlashArray works on; that is a major factor we can suggest to any customer. Analytical capabilities are crucial. Daily, we check the throughput and consumption, and Pure Storage FlashArray provides predictions for one year regarding usage. This prediction helps plan updates well ahead. For support, we just raise a case, and they follow up and get it done. There is also AI readiness, but with the model R2, we don't have much of that AI readiness. For others, we do have AI readiness that predicts capacity based on daily or monthly trends, enabling us to analyze how much space we need or if we need to expand the disk shelf. From an operational point of view, a good feature is that if you accidentally delete a volume, it will be retained in the destroyed state for the next twenty-four hours, which is not the same with any other vendor. I have worked in this storage domain for the past fifteen years, and this option is remarkable, benefiting any L1 or L2 engineer. Additionally, from a compliance perspective, Pure Storage FlashArray has REST APIs enabled. I have not explored automation much, but from a security standpoint, it is strong with encryption data. If you want to automate, you can easily integrate with all clouds and explore Pure Cloud for scheduling workloads, including volume creation. Customers find benefit in Pure Storage FlashArray's single management pane of glass due to the dual controller and active-active setup. If one of the controllers goes down, all workloads automatically shift to the other controller, ensuring their data is safe and accessible at all times. This is a highlighted feature that any customer desires because their data should always be accessible. For SAN workloads, we use Pure Storage FlashArray because for SAN FC fiber channel, we don't use it; we use NetApp for NAS activities. We have clearly split this, so SAN is for mission-critical applications, while network-attached storage handles file systems. This architecture helps us maximize the benefit from Pure Storage FlashArray due to the significant workloads from this giant retail client. From a footprint and energy consumption perspective, you can see energy consumption from the Pure1 storage portal on a daily basis, and it is very compact. The three models we use consume only three units, which is quite low. From a footprint and data center perspective, it doesn't occupy much space. As everything moves to cloud, there are requirements to avoid excess spending on data centers, and Pure Storage FlashArray is efficient in energy consumption and is environmentally friendly.
NR
TSG Manager at Navigator Systems
Ease of implementation and robust performance enhance multi-OEM support experience
We are limited only to hardware replacement, not administration tasks. We work on AMC products through Annual Maintenance Contracts. We provide support up to the 680 model. The XT680F is a newer model, and we support from 380F to 680F. The FlashSystem 8000 series is all-flash, and there is also a 5000 series flash model. We can compare IBM DS series, including the 8000 series for recommendations. For NetApp, we can recommend the FAS 8000 series.
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

"The product cheaper compared to other solutions concerning the technology that they are using."
"The compression rate is one of the most valuable features of Pure Storage FlashArray. Additionally, it is all-flash storage with excellent IOPS, and hardware failures are very less."
"The most valuable feature of Pure Storage FlashArray is the all-flash storage performance, low latency, and efficiency of their de-duplication technology."
"You can get your storage access within two minutes, which is great, because it is a lot quicker for our team to get the servers up and running."
"Pure Storage has the right business model and will be around for a long time."
"We put a fair amount of stress on it because we run sequel workloads and we run web applications where the same web files are hit over and over. We have had almost zero stability issues with that SAN, that has been really great for us."
"We have seen savings in our storage, and the speed of deployment has gone from several days to a few minutes, reducing backup and restore times from 93 days to minutes and simplifying storage for us."
"You can even review the devices from your phone. You don't need to be connected to your company's website or VPN to access alerts and reports. While you can't manage the devices using your phone, you can review all the important details about the machine."
"To be programmatically administered is huge, it is one of the key features that we like about it."
"It has good performance."
"Unified block and file storage without the need of control stations and data movers. This simplifies administration and deployment and requires less rack space."
"The performance and the stability of the platform have been stellar, with no issues from customers and simple, very non-disruptive upgrades that have been fantastic for all of our customers."
"As far as how Dell EMC Unity XT has performed, I don't think I've ever seen latencies above 10 milliseconds, unless it was something that wasn't the array that was messing up."
"Storage Snapshots have been really nice. They allow us to do backups without impacting our production workload that much. The scalability, the ability to add disks dynamically and adjust our workload as needed, has also been really helpful. That definitely makes my job easier. And the interface for managing Unity is very easy. The integrations between VMware Hypervisor and Dell EMC are top-notch, so it's been really easy to use and manage."
"Block compression on F Models or in flash pools allows us to almost duplicate the available space on the array; more space for less money, everyone likes this."
"It's easy to use, easy to manage, easy to troubleshoot, and the process support is good."
"ThinkSystem's storage performs well, and the price per gigabyte is good, especially on SSD solutions. It's also easy to use."
"Fewer features is not necessarily a negative as it leads to simpler operation and lower price."
"Lenovo ThinkSystem DE Series is cost-effective; there is no license, all of the features are bundled together, and you can renew the bundle with all of the features included."
"The solution's initial setup process is easy."
"My advice to others is that this is a straightforward, detailed documented, and supported solution."
"We have had a very good experience with customer service and support, as they answer questions very fast and resolve our issues."
"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 is very easy to troubleshoot, it doesn't take long to deploy, normally comes with a three-year warranty, and has the most features if you compare it to other models."
 

Cons

"Technical support needs improvement. With respect to them being able to respond, they're more marketing people, less technical."
"It is not possible to create a cluster on top of multiple arrays."
"The internal garbage collection process has been fixed recently in some OS updates so it is more efficient but that could be just a little better."
"We have not had a good experience with the IBM device."
"Areas for improvement would be the financial operations. In the next release, I would like to see a NAS protocol included."
"In the next release, I would like to see file-level encryption."
"The one major gripe I have is that there is no snapshotting enabled by default on the SAN."
"I think replication is one area that still needs improvement."
"Dell could improve Unity XT by adding support for NVMe."
"It needs deduplication. We'd like to have the dedupe capabilities in the Unity."
"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."
"There are some features in VNX that I wish were in the Unity. Storage Groups for isolating LANs and hosts is a big issue."
"We would like an AI feature that would protect the backup and minimize the consumed space so we can maintain the quality of the backup."
"This product lacks deduplication and compression at the current version 4.1.0. LACP is not available for iSCSI either."
"To the best of my knowledge, migration from VNX to Unity without VPLEX/RecoverPoint is not available right now."
"Scalability of this solution could be improved."
"Usually, when a part fails, we have to replace it and it takes a while."
"Improvements can be made to the product's performance."
"ThinkSystem could be better integrated with backup software like Commvault, Veritas, or Symantec."
"The product could support advanced software integrations."
"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."
"The features are limited."
"The type of connection that is used in Lenovo ThinkSystem DE Series should be improved."
"In the next release, I would like to see support for Hyper-converged infrastructure."
 

Pricing and Cost Advice

"We have an Evergreen Storage subscription, which I think is a great feature."
"You get what you pay for. It is expensive, but it really works."
"The pricing is reasonable."
"It's expensive, but you get what you pay for."
"There is an annual or perpetual license required for this solution."
"It is a cheaper solution."
"The price is reasonable."
"Pure Storage FlashArray's pricing is very competitive."
"The license is not required, but we must renew the support every year, every two years."
"Our costs are roughly $200,000 a year."
"The price is very reasonable."
"From an ROI perspective, I'll put it this way: When we've tried to buy other SANs, the Unity ROI makes it impossible to buy them. So usually, the only time we buy another SAN is when the ROI isn't a factor, because Unity can't do the job. From an ROI perspective, it's great because it beats everything else out. We've tried to look at other options but, at the end of the day, when you price it out, the Unity wins."
"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."
"Obtaining a warranty is easy."
"Licensing is easy since all the software is included."
"While Dell EMC is costly, I don't have any complaints about their licensing model."
"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 solution's price could be better."
"The pricing for this solution is good compared to HP or Dell EMC."
"It is an expensive solution."
"The best thing about this solution is its price, which reduces our costs."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
12%
Computer Software Company
9%
Construction Company
9%
Manufacturing Company
8%
Computer Software Company
12%
Manufacturing Company
10%
Financial Services Firm
8%
Comms Service Provider
6%
Computer Software Company
14%
Comms Service Provider
10%
Manufacturing Company
9%
Financial Services Firm
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business64
Midsize Enterprise36
Large Enterprise146
By reviewers
Company SizeCount
Small Business62
Midsize Enterprise49
Large Enterprise94
By reviewers
Company SizeCount
Small Business10
Midsize Enterprise3
 

Questions from the Community

Which should I choose: HPE 3PAR StoreServ or Hitachi Virtual Storage Platform F Series?
Both are great platforms, but if you are considering all flash solutions, I would recommend you to consider Pure Stor...
What is your experience regarding pricing and costs for Pure Storage FlashArray?
I don't really know much about the pricing for Pure Storage FlashArray in terms of the absolute cost. Regarding Everg...
What needs improvement with Pure Storage FlashArray?
Despite liking Pure Storage FlashArray, there is room for improvement in automation. Pure Storage FlashArray needs to...
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 Storage FlashArray
EMC Unity, Dell EMC Unity
ThinkSystem DE Series
 

Overview

 

Sample Customers

Nielsen, Lamar Advertising, LinkedIn, Betfair, UT-Dallas
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: April 2026.
890,027 professionals have used our research since 2012.