Lenovo ThinkSystem DE Series vs Lenovo ThinkSystem DM Series comparison

Lenovo ThinkSystem DE Series vs. Lenovo ThinkSystem DM Series

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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

Pure FlashArray X NVMe

Mindshare comparison

As of August 2025, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 0.9%, up from 0.8% compared to the previous year. The mindshare of Lenovo ThinkSystem DE Series is 2.4%, down from 2.6% compared to the previous year. The mindshare of Lenovo ThinkSystem DM Series is 2.1%, down from 2.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.

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.

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Gastone Canali

IT Consultant at Effegibi

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…

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Mark Richmond

Chief Technology Officer at Next Level Communications

Reliable and fast servers with good support

We use on-premise servers with Lenovo ThinkSystem. We set up Hyper-V and load multiple types of servers including a domain controller, a SQL Server, and application servers The solution provides fast servers that are reasonably priced. We set up RAID ten to ensure drive redundancy, leading to…

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Quotes from Members

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

Pros

"The solution uses newer technology for deduplication and compression."

"The solution is scalable."

"The high availability of the product is the most valuable feature."

"The initial setup was extremely simple and straightforward."

"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."

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

"Pure FlashArray X NVMe will quickly overcome all the hurdles you face, including network and latency issues."

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

More Pure FlashArray X NVMe pros

"Its initial setup process is easy."

"We have been working with the solution for around a year and so far it has shown itself to be stable."

"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."

"Lenovo ThinkSystem DE Series is simple to use"

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

"I would rate the stability of Lenovo ThinkSystem DE Series as a ten."

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

"The solution's initial setup process is easy."

More Lenovo ThinkSystem DE Series pros

"The solution offers very good reliable systems and storage for our clients."

"The servers are fast and affordable."

"The most valuable feature of the Lenovo ThinkSystem DM Series is its ability to store data well."

"The product’s quality of service guarantees the performance of each workload."

"The most valuable feature of Lenovo ThinkSystem DM Series is its capability to tier to the cloud, such as Microsoft Azure or Amazon AWS. Additionally, the integration is good and they are user-friendly."

"The FlexClone feature is the solution's most valuable aspect."

"Scalable and stable storage array."

"The value we derive from using it is greater than other alternatives like HPE and Dell."

More Lenovo ThinkSystem DM Series pros

Cons

"There are some challenges with data encryption and reduction."

"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."

"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."

"Right now, the box itself is just strictly working as a backend storage system. It would be fantastic if we could access it directly like a NAS device through network access or SIS drives. I think they have an interface, but I am not sure how good it is. If we could address a box directly on the network without having to go through a server, it would be great. The replication schemas could be improved. We are not using replication on the storage level right now. We use a different type of replication. If their replication would be as good as the one that we have, I would probably run the replication schema because it might be faster, but I don't know that for a fact. So, I cannot say that they have good replication. All I can say is that they need to inform us better."

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

"If the customer only needs 500 terabytes and doesn't care how much data they'll put in the server, IBM is cheaper than Pure."

"One point I'd like to improve is that the tool should start selling small boxes again. It discontinued some products and is focusing on bigger, more capable boxes, neglecting the SMB market. Even though it's not a big market, it shouldn't have removed them."

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

More Pure FlashArray X NVMe cons

"Its performance could be faster."

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

"Improvements can be made to the product's performance."

"In the next release, I would like to see support for Hyper-converged infrastructure."

"The features are limited."

"In the next release, I would like to see more functionality. But, again, it is an entry-level product."

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

"The product could support advanced software integrations."

More Lenovo ThinkSystem DE Series cons

"Many people do not realize that Lenovo has a storage solution, so better marketing from the vendor is needed."

"The solution should change the licensing model and allow customers to choose features based on their requirements."

"Lenovo ThinkSystem DM Series is not stable. If I have sold fifty boxes, about fifty percent of them experienced failure."

"I would like Lenovo to add a feature like IBM Easy Tier to DM Series. This is a crucial feature for the customers."

"It takes a very long time to enter the management console, as well as to restart the system, and these are things that should be improved."

"There might be improvements needed in drive throughput as disk speed has been a limitation on Windows servers."

"Lenovo could have a wider variety of storage solutions in the NAS space."

"The licensing model needs to be revisited. It needs to be simplified."

More Lenovo ThinkSystem DM Series cons

Pricing and Cost Advice

"We pay approximately $50,000 USD per year in licensing fees."

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

"Our licensing fees are $500,000+ USD."

"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."

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

"The support cost per array is about $20,000 a year for 24/7 support."

"The product is expensive."

More Pure FlashArray X NVMe pricing and cost advice

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

"For an all-flash setup, the cost is around $20,000 for a decent configuration."

"It is an expensive solution."

"All of the features are bundled together, and you can renew the bundle with all of the features included."

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

"The solution's price could be better."

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

More Lenovo ThinkSystem DE Series pricing and cost advice

"The solution's pricing is similar to Dell and HPE."

"Lenovo offers two software tiers for the DM Series: basic and premium. If you need more features like the MetroCluster, you must buy the premium version. You can stick to the basic software if you don't need MetroCluster or features like asynchronous replication. That makes DM Series a little cheaper."

"The price of the Lenovo ThinkSystem DM Series is good."

"The solution is highly-priced."

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Top Industries

By visitors reading reviews

Computer Software Company

14%

Manufacturing Company

10%

Financial Services Firm

10%

Government

Computer Software Company

16%

Manufacturing Company

Comms Service Provider

University

Computer Software Company

23%

Comms Service Provider

Manufacturing Company

Retailer

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 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 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...

What is your experience regarding pricing and costs for Lenovo ThinkSystem DM Series?

There are extra expenses beyond the standard licensing fee for features such as replication and deduplication, which ...

What needs improvement with Lenovo ThinkSystem DM Series?

The deployment process of Lenovo ThinkSystem DM Series is very complicated compared to previous GUI systems. Many cus...

What is your primary use case for Lenovo ThinkSystem DM Series?

My primary use case for Lenovo ThinkSystem DM Series ( /products/lenovo-thinksystem-dm-series-reviews ) is for storag...

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Product Reports

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Pure FlashArray X NVMe

August 2025

All-Flash Storage

Download Lenovo ThinkSystem DE Series product report

All-Flash Storage

Download Lenovo ThinkSystem DM Series product report

Also Known As

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

ThinkSystem DE Series

ThinkSystem DM Series

Overview

Pure Storage FlashArray//X is the world’s first enterprise-class, all-NVMe flash storage array. It represents a new class of storage – shared accelerated storage, which is a term coined by Gartner – that delivers major breakthroughs in performance, simplicity, and consolidation.

Pure Storage

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

To meet enterprise storage requirements, ThinkSystem All-Flash DM Series systems provide high performance, superior flexibility, and best-in-class data management. DM Series runs on ONTAP data management software, which gives customers unified storage across block-and-file workloads. It accelerates your business while improving the efficiency, flexibility, and reliability of your IT operations.

Lenovo

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company

Information Not Available

Lenovo ThinkSystem DE Series vs. Lenovo ThinkSystem DM Series