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

"On a scale of one to ten, I rate Pure FlashArray as ten."

"What I really like about this program, is that it is easy to use and easy to configurate."

"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."

"The most valuable features of Pure FlashArray X NVMe are its superior performance compared to other flash tiers, as well as its ease of use, with an intuitive user interface that is simple to deploy and use."

"It offers competitive performance, and the Evergreen storage model of Pure fits well with my organization."

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

"Overall stability is very good. It is a very stable solution."

"It's incredibly easy to use and greatly simplified our ability to both deploy and manage our storage subsystems."

More Pure FlashArray X NVMe pros

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

"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."

"The solution is very easy to set up."

"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."

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

"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 simple to use"

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

More Lenovo ThinkSystem DE Series pros

"Ability to cluster two storages together with HA availability."

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

"Last year, I did a DM Series installation with my colleague, and this installation was effortless because we had Lenovo support on the phone, so it was easy to get help if we had any problems."

"Scalable and stable storage array."

"We are satisfied with the stability."

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

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

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

More Lenovo ThinkSystem DM Series pros

Cons

"The tool's portfolio is minimal. It is expensive."

"Our use cases require more multi-tenant capabilities and additional VLAN interfaces for separating different customers. We currently use it to provide storage, sometimes shared storage, to different customers, but it is less flexible in comparison to a dedicated solution."

"Adding some functions to the product would be beneficial."

"Efficiency improvements would always be welcome, but I'm not sure if they could get more efficient."

"Many options to check performance, like read, writes, random writes, and random reads, are missing in Pure FlashArray X NVMe."

"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."

"It is on the expensive side."

"Managing data isn't difficult for me. The performance is usually perfect, but we sometimes have capacity problems."

More Pure FlashArray X NVMe cons

"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."

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

"There could be a snapshot feature in the solution."

"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."

"The solution could be more scalable, although it suits our present needs."

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

More Lenovo ThinkSystem DE Series cons

"I would rate the support of Lenovo ThinkSystem DM Series a four out of five."

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

"The tool's pricing is high."

"The solution needs a simpler licensing theme around the DM series. The problem is if you only need one of the features, you still have to buy the whole thing. The licensing needs to be more granular or flexible so you have the option to only license FlexCone or Inline Compression features."

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

"This is an expensive solution."

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

"The Lenovo ThinkSystem DM Series was very hard to configure. Installation of the product was very hard. These are its areas for improvement."

More Lenovo ThinkSystem DM Series cons

Pricing and Cost Advice

"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."

"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."

"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."

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

"The licensing is on a yearly basis."

"Given its price, Pure is not the first option."

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

More Pure FlashArray X NVMe pricing and cost advice

"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."

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

"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."

"It is an expensive solution."

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

More Lenovo ThinkSystem DE Series pricing and cost advice

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

"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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HPE Alletra Storage vs Pure FlashArray X NVMe

Compared 10% of the time

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IBM FlashSystem vs Lenovo ThinkSystem DE Series

Compared 13% of the time

NetApp AFF vs Lenovo ThinkSystem DE Series

Compared 13% of the time

HPE Alletra Storage vs Lenovo ThinkSystem DE Series

Compared 9% of the time

Dell Unity XT vs Lenovo ThinkSystem DE Series

Compared 6% of the time

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Compared 38% of the time

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Compared 14% of the time

Dell PowerStore vs Lenovo ThinkSystem DM Series

Compared 11% of the time

Dell Unity XT vs Lenovo ThinkSystem DM Series

Compared 6% of the time

Huawei OceanStor Dorado vs Lenovo ThinkSystem DM Series

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Product Reports

Download Pure FlashArray X NVMe product report

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