IBM FlashSystem 9100 NVMe vs Lenovo ThinkSystem DE Series comparison

IBM and Lenovo are both solutions in the All-Flash Storage category. IBM is ranked #27 with an average rating of 8.3, while Lenovo is ranked #21 with an average rating of 10.0. IBM holds a 0.6% mindshare in AFS, compared to Lenovo’s 2.1% mindshare. Additionally, 95% of IBM users are willing to recommend the solution, compared to 100% of Lenovo users who would recommend it.

Comparison Buyer's Guide

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Executive SummaryUpdated on Sep 18, 2024

Lenovo ThinkSystem DE Series and IBM FlashSystem 9100 NVMe are two high-performance storage solutions. IBM FlashSystem 9100 NVMe stands out for its advanced features, making it worth the investment according to user reviews.

Features: Lenovo ThinkSystem DE Series is praised for its scalability, robust data protection, and ease of deployment. IBM FlashSystem 9100 NVMe is noted for its high-speed performance, flexible deployment options, and enhanced data reduction capabilities.

Room for Improvement: Lenovo ThinkSystem DE Series users suggest improvements in system integration, management tools, and interoperability with existing systems. IBM FlashSystem 9100 NVMe users highlight the need for enhanced customer support, better interoperability with existing systems, and improved proactive maintenance services.

Ease of Deployment and Customer Service: Lenovo ThinkSystem DE Series is often commended for its straightforward setup process and reliable customer support. IBM FlashSystem 9100 NVMe, while also noted for ease of deployment, receives mixed feedback on customer service with some users seeking more proactivity.

Pricing and ROI: Lenovo ThinkSystem DE Series generally offers a lower setup cost and quicker ROI, appreciated by budget-conscious users. IBM FlashSystem 9100 NVMe is viewed as having a higher upfront cost but justified by its superior performance and longer-term benefits.

To learn more, read our detailed IBM FlashSystem 9100 NVMe vs. Lenovo ThinkSystem DE Series Report (Updated: December 2025).

Buyer's Guide

IBM FlashSystem 9100 NVMe vs. Lenovo ThinkSystem DE Series

December 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 January 2026, in the All-Flash Storage category, the mindshare of Pure FlashArray X NVMe is 1.4%, up from 0.7% compared to the previous year. The mindshare of IBM FlashSystem 9100 NVMe is 0.6%, up from 0.5% compared to the previous year. The mindshare of Lenovo ThinkSystem DE Series is 2.1%, 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 (%)
Pure FlashArray X NVMe	1.4%
Lenovo ThinkSystem DE Series	2.1%
IBM FlashSystem 9100 NVMe	0.6%
Other	95.9%

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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MohammedIsmail

Datacenter Manager at Tracker Connect

Enhanced storage performance and an easy setup with compression challenges

We use IBM FlashSystem 9100 NVMe as a storage device in the IT industry The features I find most valuable include its use for storage and performance. The solution's compression needs to be improved, as it's not the best. Furthermore, support from the partner could also be improved as it's been…

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Giorgio Pozzi

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…

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

"The latency is good."

"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 is very easy to install and configure. It has got excellent diagnostics. If you really need to see how the box is performing, the console gives you a lot of information. You can set thresholds as well as alerts based on the thresholds, which is a very powerful functionality. They are very proactive. They know how to monitor and manage the systems. They see a problem, and they are all over it before us. They see the problem before we see it, which is very good."

"It has benefited my organization because it has reduced time to insights."

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

"The duplication algorithm allows us to get a lot more use out of less storage. We're running a five terabyte array right now and we're running probably about 30 terabytes on it. So the duplication rate is pretty phenomenal, without a cost to performance. It still runs pretty smoothly."

"Everything, especially the VMs inside, is pretty fast."

More Pure FlashArray X NVMe pros

"IBM FlashSystem 9100 NVMe is easy to use and comes with good performance."

"Good performance with a user-friendly UI."

"IBM FlashSystem 9100 NVMe is one of the leading storage systems in the world...I rate the solution's stability a ten out of ten."

"The most valuable features of IBM FlashSystem 9100 NVMe are its steady performance and usefulness in high-traffic environments."

"There are many valuable features of IBM FlashSystem 9100 NVMele I have found to meet my needs. Specifically, the maintenance cycle is a standout feature of this solution. The main component of the IBM FlashSystem 9100 NVMe is the maintenance of the batteries, which have a predetermined and reliable four-year life cycle. This is in stark contrast to other solutions that may use spinning disks, which can fail unexpectedly, causing unwanted downtime and maintenance. Having a predictable maintenance cycle is a significant advantage and has made this solution a preferred choice for me."

"The solution is more available for IOPS warehousing, resolving issues, and reporting than other products."

"The most valuable feature of the solution is its upgrades, as we don't have to do much homework because of its different controllers."

"The most valuable feature of IBM FlashSystem 9100 NVMe is the snapshot. We use it daily for all of the storage units."

More IBM FlashSystem 9100 NVMe pros

"Its initial setup process is easy."

"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."

"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."

"Lenovo ThinkSystem DE Series is simple to use"

"The solution is very easy to set up."

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

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

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."

"The software layer has to improve."

"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."

"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 are some challenges with data encryption and reduction."

"I want to see Pure Storage not only be for fast storage, but I want to see it be for the entire data center."

"In terms of what needs improvement, the dashboard and management could be simplified."

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

More Pure FlashArray X NVMe cons

"The solution's compression needs to be improved, as it's not the best."

"There could be a possibility of not requiring to buy a new box while upgrading to a newer version."

"I would like to see IBM products become more affordable because they can be quite expensive, which limits their accessibility to a broader customer base."

"The tool's architecture is complex. It also needs to add data utilization reports."

"IBM's support is not good. I experienced a big problem where I opened the console IBM Storage and would see that something was broken. I called the call centers, and I said, "I have a problem. My drive is not working." They want me to give them the serial number, I gave it to them and they told me "I cannot find your product. Your product is not here.""

"There is a tool provided by IBM for repairing batteries which can only be utilized by those who have an IBM technical advisor under service contract. However, for individuals who do not have such a contract, the tool can be difficult to use and requires a zip file copy. I believe that it would be greatly beneficial if the tool were made more user-friendly and accessible for all individuals who need to repair batteries."

"The efficacy of the GUI in IBM FlashSystem 9100 NVMe could be enhanced, and it would be beneficial to include a feature that can prevent ransomware attacks."

"IBM is currently not offering volume-based encryption or compression, while other brands or IBM's competitors are doing it."

More IBM FlashSystem 9100 NVMe cons

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

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

"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."

"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."

"ThinkSystem could be better integrated with backup software like Commvault, Veritas, or Symantec."

"Its performance could be faster."

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

More Lenovo ThinkSystem DE Series cons

Pricing and Cost Advice

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

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

"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."

"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 product is expensive."

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

"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."

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

More Pure FlashArray X NVMe pricing and cost advice

"The price of IBM FlashSystem 9100 NVMe is less than Dell. For upgrades, the Dell solutions are more expensive."

"The product has an average cost."

"There are pricing options from the mid-rand to the high-range, of which the suitability depends upon the requirements."

"Price-wise, the solution offers excellent pricing to its users. In short, the prices offered by the solution are competitive compared to similar solutions."

"The solution's price is competitive."

"Compared to its competitors, IBM's offering is the most cost-effective."

"On a scale of one to ten, where one is a low price and ten is a high price, I rate the pricing an eight."

"The price of the FlashSystem 9100 NVMe is reasonable."

More IBM FlashSystem 9100 NVMe pricing and cost advice

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

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

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

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

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

"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."

"It is an expensive solution."

"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

12%

Manufacturing Company

11%

Financial Services Firm

11%

Government

Computer Software Company

Recreational Facilities/Services Company

Manufacturing Company

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	8
Midsize Enterprise	8
Large Enterprise	5

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.

See all answers

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...

See all answers

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 ...

See all answers

What do you like most about IBM FlashSystem 9100 NVMe?

The storage serves the virtual environment. Most of our applications run in the virtual environment, and it serves ne...

See all answers

What is your experience regarding pricing and costs for IBM FlashSystem 9100 NVMe?

The tool is expensive, though I do not know the specific licensing costs.

See all answers

What needs improvement with IBM FlashSystem 9100 NVMe?

The solution's compression needs to be improved, as it's not the best. Furthermore, support from the partner could al...

See all answers

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.

See all answers

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 18% of the time

Dell PowerMax vs Pure FlashArray X NVMe

Compared 12% of the time

HPE Alletra Storage vs Pure FlashArray X NVMe

Compared 10% of the time

TrueNAS R-Series vs Pure FlashArray X NVMe

Compared 9% of the time

Pure Storage FlashBlade vs Pure FlashArray X NVMe

Compared 8% of the time

More Pure FlashArray X NVMe Competitors

Dell PowerMax vs IBM FlashSystem 9100 NVMe

Compared 27% of the time

Hitachi Virtual Storage Platform vs IBM FlashSystem 9100 NVMe

Compared 18% of the time

Dell PowerStore vs IBM FlashSystem 9100 NVMe

Compared 17% of the time

HPE Alletra Storage vs IBM FlashSystem 9100 NVMe

Compared 17% of the time

Hitachi VSP E Series vs IBM FlashSystem 9100 NVMe

Compared 13% of the time

More IBM FlashSystem 9100 NVMe Competitors

Dell PowerStore vs Lenovo ThinkSystem DE Series

Compared 23% of the time

IBM FlashSystem vs Lenovo ThinkSystem DE Series

Compared 11% of the time

NetApp AFF vs Lenovo ThinkSystem DE Series

Compared 10% of the time

Lenovo ThinkSystem DM Series vs Lenovo ThinkSystem DE Series

Compared 9% of the time

HPE Alletra Storage vs Lenovo ThinkSystem DE Series

Compared 8% of the time

More Lenovo ThinkSystem DE Series Competitors

Product Reports

Buyer's Guide

Pure FlashArray X NVMe

January 2026

Download Pure FlashArray X NVMe product report

Buyer's Guide

IBM FlashSystem 9100 NVMe

January 2026

Download IBM FlashSystem 9100 NVMe product report

Buyer's Guide

All-Flash Storage

January 2026

Download Lenovo ThinkSystem DE Series product report

Also Known As

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

IBM FlashSystem 9100, FlashSystem 9100

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 9100 combines the performance of flash and Non-Volatile Memory Express (NVMe) end-to-end with the reliability and innovation of IBM FlashCore technology and the rich features of IBM Spectrum Virtualize - all in a powerful 2U enterprise-class storage system. Providing intensive data driven multicloud storage capacity, FlashSystem 9100 is deeply integrated with the software defined capabilities of IBM Spectrum Storage allowing you to easily add in the multicloud solutions that best support your business.

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

Information Not Available

Buyer's Guide

IBM FlashSystem 9100 NVMe vs. Lenovo ThinkSystem DE Series

December 2025

Free Report: IBM FlashSystem 9100 NVMe vs. Lenovo ThinkSystem DE Series

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