IBM FlashSystem vs Lenovo ThinkSystem DE Series comparison

IBM and Lenovo are both solutions in the All-Flash Storage category. IBM is ranked #13 with an average rating of 8.2, while Lenovo is ranked #21 with an average rating of 10.0. IBM holds a 6.4% mindshare in AFS, compared to Lenovo’s 2.4% mindshare. Additionally, 91% of IBM users are willing to recommend the solution, compared to 100% of Lenovo users who would recommend it.

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Executive SummaryUpdated on Sep 18, 2024

IBM FlashSystem and Lenovo ThinkSystem DE Series are competing storage solutions. Users find Lenovo's feature set and proactive customer service offer the upper hand over IBM's performance, despite cost considerations.

Features: IBM FlashSystem is recognized for high speed, low latency, and efficient data compression. Lenovo ThinkSystem DE Series includes multi-protocol support, high-density storage, and flexible scalability options.

Room for Improvement: IBM FlashSystem needs better integration capabilities, cost optimization, and potentially improved management software. Lenovo ThinkSystem DE Series could enhance its management software, reduce complexity, and improve initial setup procedures.

Ease of Deployment and Customer Service: IBM FlashSystem offers a straightforward deployment process and responsive customer service. Lenovo ThinkSystem DE Series may have a more complex deployment but is supported by robust, proactive customer service.

Pricing and ROI: IBM FlashSystem is sometimes considered cost-prohibitive but provides good ROI over time. Lenovo ThinkSystem DE Series may have higher initial setup costs but delivers faster ROI through advanced features and reliability.

To learn more, read our detailed IBM FlashSystem vs. Lenovo ThinkSystem DE Series Report (Updated: September 2025).

Buyer's Guide

IBM FlashSystem vs. Lenovo ThinkSystem DE Series

September 2025

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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 October 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 IBM FlashSystem is 6.4%, down from 6.7% compared to the previous year. The mindshare of Lenovo ThinkSystem DE Series is 2.4%, down from 2.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

All-Flash Storage Market Share Distribution
Product	Market Share (%)
IBM FlashSystem	6.4%
Pure FlashArray X NVMe	1.0%
Lenovo ThinkSystem DE Series	2.4%
Other	90.2%

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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OmarIsmail1

Infrastructure Technical Specialist II at Clicks Group

Offers high performance and dependable support for fast storage needs

The most valuable feature of IBM FlashSystem is its robust back code. When integrated properly into the environment and configured according to the guidelines, it provides a very solid infrastructure that does the job on demand. Additionally, IBM FlashSystem offers competitive pricing and reliable performance. The hardware is dependable, ensuring that it functions effectively when the setup is done correctly.

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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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Quotes from Members

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

Pros

"The initial setup was extremely simple and straightforward."

"The database workloads are pretty fast because I frequently move data from here to there."

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

"The tool's valuable features are speed, security, data compression, and reliability. Its data compression feature is the best that we have ever seen. It helps us to save money and resources."

"The solution is scalable."

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

"The latency is good."

"I appreciate the performance."

More Pure FlashArray X NVMe pros

"The most valuable features are deduplication and compression."

"The valuable feature is autoscalling."

"Over the years, it has become increasingly user-friendly."

"Ability to manage third-party arrays and virtualise them: One screen to control multiple arrays. Simplified administration."

"The performance of IBM FlashSystem is very good. The new technology and high throughput have given us more confidence in the solution. The management of the system has improved and we can control the monitoring system alerts and multiple FlashSystems with the Enterprise Cloud Edition, which is free. The migration of recently stored data to a new flash is much easier. You can move your data because you can utilize it externally."

"The performance is very good and we use this product to enhance our core system."

"The most valuable features are, of course, the virtualization of the storage, the performance, and the compression."

"The speed and the ease of installation are the most valuable features."

More IBM FlashSystem pros

"The solution is very easy to set up."

"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."

"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."

"Its initial setup process is easy."

"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."

More Lenovo ThinkSystem DE Series pros

Cons

"There is room for improvement in catering to midrange storage needs, especially for customers seeking Enterprise-class features."

"We have run into a couple of instances recently where we are running out of space. So we have had to buy some more packs for it and they have deployed fine and it has increased smoothly."

"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."

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

"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."

"There is room for improvement in the pricing of the product."

"Maybe the price can be reduced since the solution is very expensive."

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

More Pure FlashArray X NVMe cons

"This product lacks some of the options we wanted. For example, expansion was difficult and it required a lot of patching to be done."

"There could be some extra features added."

"I would like to see an improvement in the handling of large amounts of rights."

"The design is a little old-fashioned and could be updated. The rack is very primitive and designed in an older style."

"The solution is not able to replicate data in one-to-many scenario."

"I have looked at a few pages of a report I download and I saw a graph there regarding software-defined vendors. IBM is not in a good position on this graph. I know that they are working very hard on this, to make it much better and to get to a level where it's not only hardware but also software to provide a complete solution."

"One area for improvement is in the GUI, where host clusters are not properly dealt with. With Hypervisor host clusters, all hosts must see the same volumes in the same order. Using the concept of a “host-group” has been around (even with IBM) for many years, so why not with the V7000?"

"The price is very costly."

More IBM FlashSystem cons

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

"The product could support advanced software integrations."

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

"The features are limited."

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

"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."

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

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

More Lenovo ThinkSystem DE Series cons

Pricing and Cost Advice

"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."

"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."

"Pure FlashArray X NVMe’s pricing is cheaper than other products."

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

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

"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."

"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 licensing is on a yearly basis."

More Pure FlashArray X NVMe pricing and cost advice

"There are no licensing fees, it is a one-time purchase of the IBM FlashSystem."

"This solution is expensive compared to other solutions."

"We have no issues with the price as it is very competitive."

"It pays to go back and get the best price you can from your supplier. The first offer is not always at the best discount."

"The price of IBM FlashSystem is reasonable."

"IBM V7000 has a new license and price structure which provides intuitive licensing based on the functions customers wish to enable and use the most."

"The solution requires a license and could be less expensive."

"The solution has good pricing, but it is not cheaper."

More IBM FlashSystem pricing and cost advice

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

"It is an expensive solution."

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

"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 best thing about this solution is its price, which reduces our costs."

"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."

More Lenovo ThinkSystem DE Series pricing and cost advice

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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

13%

Financial Services Firm

11%

Manufacturing Company

Comms Service Provider

Computer Software Company

16%

Manufacturing Company

Comms Service Provider

University

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	15
Midsize Enterprise	11
Large Enterprise	12

By reviewers
Company Size	Count
Small Business	47
Midsize Enterprise	22
Large Enterprise	57

By reviewers
Company Size	Count
Small Business	10
Midsize Enterprise	3

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.

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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...

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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 ...

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What do you like most about IBM FlashSystem?

It is simple to make an update.

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What is your experience regarding pricing and costs for IBM FlashSystem?

The pricing is reasonable for IBM FlashSystem.

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What needs improvement with IBM FlashSystem?

Some improvements are required in IBM regarding response time and resolution time, though not about competence. Produ...

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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.

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What needs improvement with Lenovo ThinkSystem DE Series?

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

See all answers

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...

See all answers

Comparisons

Dell PowerStore vs Pure FlashArray X NVMe

Compared 23% of the time

TrueNAS R-Series vs Pure FlashArray X NVMe

Compared 16% of the time

Dell PowerMax vs Pure FlashArray X NVMe

Compared 14% of the time

Pure Storage FlashBlade vs Pure FlashArray X NVMe

Compared 11% of the time

HPE Nimble Storage vs Pure FlashArray X NVMe

Compared 4% of the time

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Dell PowerStore vs IBM FlashSystem

Compared 22% of the time

HPE Alletra Storage vs IBM FlashSystem

Compared 9% of the time

Huawei OceanStor Dorado vs IBM FlashSystem

Compared 9% of the time

Pure Storage FlashArray vs IBM FlashSystem

Compared 9% of the time

HPE MSA vs IBM FlashSystem

Compared 4% of the time

More IBM FlashSystem Competitors

Dell PowerStore vs Lenovo ThinkSystem DE Series

Compared 29% of the time

NetApp AFF vs Lenovo ThinkSystem DE Series

Compared 11% of the time

Lenovo ThinkSystem DM Series vs Lenovo ThinkSystem DE Series

Compared 10% 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

More Lenovo ThinkSystem DE Series Competitors

Product Reports

Buyer's Guide

Pure FlashArray X NVMe

September 2025

Download Pure FlashArray X NVMe product report

Buyer's Guide

IBM FlashSystem

September 2025

Download IBM FlashSystem product report

Buyer's Guide

All-Flash Storage

September 2025

Download Lenovo ThinkSystem DE Series product report

Also Known As

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

IBM Storwize

ThinkSystem DE 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

IBM FlashSystem products are enterprise computer data storage systems that store data on flash memory chips. Unlike storage systems that use standard solid-state drives, IBM FlashSystem products incorporate custom hardware based on technology from the 2012 acquisition of Texas Memory Systems. This hardware provides performance, reliability, and efficiency benefits versus competitive offerings.

IBM

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

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company

Celero, Friedhelm Loh Group, Clarks, Mingkang Natregro Health Food Group, Sofia, Etisalat Fights Fraud, UF Health Shands Hospital, Generali, Elecon Engineering Company Limited, Ventiv , Technology, CPFL Energia, Royal Caribbean Cruises Ltd., SciQuest, Coca-Cola Bottling Co. Consolidated, Paddy Power, Kelsey-Seybold Clinic, Interconnect Services, Severstal IP-Only AB, PVU Group GmbH

Information Not Available

Buyer's Guide

IBM FlashSystem vs. Lenovo ThinkSystem DE Series

September 2025

Free Report: IBM FlashSystem vs. Lenovo ThinkSystem DE Series

Find out what your peers are saying about IBM FlashSystem vs. Lenovo ThinkSystem DE Series and other solutions. Updated: September 2025.

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