Lenovo ThinkSystem DM Series vs VAST Data comparison

Lenovo and VAST Data are both solutions in the All-Flash Storage category. Lenovo is ranked #22 with an average rating of 9.0, while VAST Data is ranked #30. Lenovo holds a 2.0% mindshare in AFS, compared to VAST Data’s 2.5% mindshare. Additionally, 60% of Lenovo users are willing to recommend the solution, compared to 100% of VAST Data users who would recommend it.

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Executive SummaryUpdated on Sep 18, 2024

Lenovo ThinkSystem DM Series and VAST Data offer robust data management solutions with distinct advantages in various areas. VAST Data has the upper hand with its advanced features, providing a performance edge.

Features: Lenovo ThinkSystem DM Series provides comprehensive data protection, scalability, and integration with existing IT environments. VAST Data is noted for exceptional performance, scalability beyond traditional limits, and leading-edge continuous availability features.

Room for Improvement: Users of Lenovo ThinkSystem DM Series report occasional challenges with performance under heavy loads and a need for more frequent updates. VAST Data users suggest enhancements in integration capabilities with third-party tools and a more intuitive management experience.

Ease of Deployment and Customer Service: Lenovo ThinkSystem DM Series users appreciate the straightforward installation process and responsive customer support. VAST Data receives positive feedback for its easy deployment, though some users experience a steeper learning curve.

Pricing and ROI: Lenovo ThinkSystem DM Series is favored for its competitive pricing and solid return on investment. VAST Data, although at a higher price point, delivers a compelling ROI through superior technology and long-term benefits.

To learn more, read our detailed Lenovo ThinkSystem DM Series vs. VAST Data Report (Updated: December 2025).

Buyer's Guide

Lenovo ThinkSystem DM Series vs. VAST Data

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 Lenovo ThinkSystem DM Series is 2.0%, down from 2.3% compared to the previous year. The mindshare of VAST Data is 2.5%, up 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 DM Series	2.0%
VAST Data	2.5%
Other	94.1%

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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Augustine Gracious

Service manager at Crescent Technologies

Complicated deployment and poor support persist, affecting overall satisfaction

The deployment process of Lenovo ThinkSystem DM Series is very complicated compared to previous GUI systems. Many customers have lost data while configuring it, indicating a need for improvement. The after-sales service is also very poor. Furthermore, it does not offer basic features like deduplication, and the service is generally considered to be very bad.

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Alan Powers

HPC CTO at a manufacturing company with 10,001+ employees

Stability-wise, a device that has been up and running for years

The failover capability and resiliency are some of the solution's valuable features. The big thing is resilience because it has richer coding in it, so multiple devices can't fail. Also, one can still access a number of CBoxes that can allow one to access their file system. Once a device fails, it fails the transparency of the end-user, and it just starts using another resource. The encryption capability, the snapshots, along with a whole bunch of features make the tool valuable. VAST Data keeps adding more and more features all the time.

Read full review

Quotes from Members

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

Pros

"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."

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

"The initial setup was extremely simple and straightforward."

"It has good, reliable, fast storage."

"Offers excellent features like efficient data reduction, a reliable SafeMode, and a great support model for continuous assistance and updates."

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

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

"The most valuable feature of this solution is reliability."

More Pure FlashArray X NVMe pros

"It has been a perfect fit for the workload that our customer is doing."

"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."

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

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

"The servers are fast and affordable."

"The price of this solution is good."

"We are satisfied with the stability."

More Lenovo ThinkSystem DM Series pros

"The solution is useful for machine learning and scientific applications, including computer simulations."

"This has been one of the most reliable storage systems that I have ever used."

Cons

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

"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."

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

"The UI for this solution needs to be improved."

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

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

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

"It feels more suitable for small and medium-sized businesses rather than enterprises."

More Pure FlashArray X NVMe cons

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

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

"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."

"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."

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

"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."

"This is an expensive solution."

More Lenovo ThinkSystem DM Series cons

"The read/write ratio is an area in the solution with some flaws and needs improvement."

"The write performance could be improved because it is less than half of the read performance."

Pricing and Cost Advice

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

"They can tout the functionality and cutting edge technology that they have, but that's where the price tag comes in. The cost is high, but I think as they grow their business and get more customers that it will probably go down a little bit."

"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."

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

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

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

More Pure FlashArray X NVMe 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 is highly-priced."

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

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

"We acquired VAST Data as a one-time, capital purchase."

"Price-wise, VAST Data is not the cheapest, not the most expensive one."

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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

21%

Comms Service Provider

Manufacturing Company

Retailer

Manufacturing Company

13%

Financial Services Firm

13%

Computer Software Company

12%

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	13
Midsize Enterprise	2
Large Enterprise	2

No data available

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 ...

See all answers

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 ...

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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...

See all answers

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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Comparisons

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Compared 32% of the time

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Compared 15% of the time

Dell PowerStore vs Lenovo ThinkSystem DM Series

Compared 12% of the time

Lenovo ThinkSystem DE Series vs Lenovo ThinkSystem DM Series

Compared 9% of the time

HPE Alletra Storage vs Lenovo ThinkSystem DM Series

Compared 5% of the time

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Pure Storage FlashArray vs VAST Data

Compared 9% of the time

NetApp AFF vs VAST Data

Compared 9% of the time

Dell PowerScale (Isilon) vs VAST Data

Compared 8% of the time

MinIO vs VAST Data

Compared 7% of the time

Pure Storage FlashBlade vs VAST Data

Compared 7% of the time

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Product Reports

Buyer's Guide

Pure FlashArray X NVMe

January 2026

Download Pure FlashArray X NVMe product report

Buyer's Guide

All-Flash Storage

January 2026

Download Lenovo ThinkSystem DM Series product report

Buyer's Guide

NVMe All-Flash Storage Arrays

January 2026

Download VAST Data product report

Also Known As

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

ThinkSystem DM Series

No data available

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

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

Innovation to break decades of data storage trade-offs.

VAST Data

Sample Customers

Fremont Bank, Judson ISD, The Nielsen Company

Information Not Available

Norwest Venture Partners, General Dynamics Information Technology, Ginkgo Bioworks

Buyer's Guide

Lenovo ThinkSystem DM Series vs. VAST Data

December 2025

Free Report: Lenovo ThinkSystem DM Series vs. VAST Data

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