Kaminario K2 [EOL] vs Lenovo ThinkSystem DM Series comparison

Silk and Lenovo are both solutions in the All-Flash Storage category. Additionally, 94% of Silk users are willing to recommend the solution, compared to 60% of Lenovo users who would recommend it.

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Executive Summary

We performed a comparison between Kaminario K2 [EOL] and Lenovo ThinkSystem DM Series based on real PeerSpot user reviews.

Find out what your peers are saying about Dell Technologies, NetApp, Hewlett Packard Enterprise and others in All-Flash Storage.

To learn more, read our detailed All-Flash Storage Report (Updated: September 2025).

Buyer's Guide

All-Flash Storage

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

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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Engineerdb78

Network Engineer at a comms service provider with 10,001+ employees

A solution with a simple configuration and good stability but it's quite expensive

Access to technical support should be improved for our region. Technical support is good, but they're very hard to access. When we have a problem with this storage, it's usually related to a very bad configuration. All-Flash Storage is very, very expensive. They are important solutions so I don't really have any ideas about how to rectify this. The device could use better monitoring tools.

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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

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

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

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

"We are satisfied with the performance as it is significantly faster compared to traditional storage options."

"The solution is very straightforward to set up."

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

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

"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."

More Pure FlashArray X NVMe pros

"The ratio between the physical storage and the storage we use is very high."

"Built-in snapshot support gives us SAN-side functionality most other platforms would have had us license separately."

"The GUI is very straightforward and easy to use."

"Scale out is a differentiator for them, especially in the enterprise market. It's key for a lot of customers."

"Inline compression"

"The speed and, for us in particular in what we're doing, the data de-duplication."

"Implementation of the solution is very simple."

"Ease of use: My installers - my administrators over the system - they love how easy and fast it is to install and spin up a LUN and get going."

More Kaminario K2 [EOL] pros

"One of the most valuable features of Lenovo ThinkSystem DM Series is the snapshot feature."

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

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

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

"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."

"The price of this solution is good."

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

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

More Lenovo ThinkSystem DM Series pros

Cons

"The software layer has to improve."

"We've seen that when we create a POD in synchronous mode, it increases the latency."

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

"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."

"Adding some functions to the product would be beneficial. Storage replication should be essential, and the analytics should not incur extra charges."

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

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

"I would like to see replication and DR features in the next release of this solution."

More Pure FlashArray X NVMe cons

"I would like to see LDAP for the management panel; I've been notified they might be currently working on it."

"The management graphical interface needs more improvement."

"Access to technical support should be improved for our region. Technical support is good, but they're very hard to access."

"Improved scale and budget planning with flexibility of the solution for budget needs and efficiency for growth with the great optimization ratio due to the nature of our use."

"I would like them to improve the look of the product’s external casing and shelves."

"The interface look and feel could be improved."

"I would love to see capacity on its DRAM. I know it's not cost effective for them to do it, but I think that it could be a big differentiator and was a big differentiator from the beginning."

"The system currently has a 15TB LUN size limit and that snapshots need to be scheduled through script API instead of the GUI."

More Kaminario K2 [EOL] cons

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

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

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

"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."

"Lenovo ThinkSystem DM Series could improve by having a snapshot feature. Additionally, there can be other features added to help restore the data faster."

"The tool's pricing is high."

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

"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 licensing is on a yearly basis."

"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."

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

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

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

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

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

"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."

More Pure FlashArray X NVMe pricing and cost advice

"The licensing is all-inclusive."

"The Kaminario setup is simple and there are no hidden licensing fees so this area is a relief."

"All features are provided in the licensing. The cost of Kaminario was less than the cost of a hybrid array."

"I would like them to come down in price. It is as expensive as EMC, Hitachi, and other major vendors."

"Kaminario is very competitive on price. They also have a pay per TB model."

"Licensing is very straightforward. The cost was considerably lower than other products we looked at."

"The "extra" costs associated with features and options that are available off the shelf with Kaminario, make their value proposition extremely competitive."

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

"The solution is highly-priced."

"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."

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Top Industries

By visitors reading reviews

Computer Software Company

13%

Manufacturing Company

11%

Financial Services Firm

10%

Government

No data available

Computer Software Company

21%

Comms Service Provider

Financial Services Firm

Manufacturing Company

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	4
Midsize Enterprise	4
Large Enterprise	9

By reviewers
Company Size	Count
Small Business	13
Midsize Enterprise	2
Large Enterprise	2

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 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...

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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

Dell PowerStore vs Pure FlashArray X NVMe

Compared 22% of the time

TrueNAS R-Series vs Pure FlashArray X NVMe

Compared 15% of the time

Dell PowerMax vs Pure FlashArray X NVMe

Compared 13% of the time

Pure Storage FlashBlade vs Pure FlashArray X NVMe

Compared 11% of the time

HPE Alletra Storage vs Pure FlashArray X NVMe

Compared 11% of the time

More Pure FlashArray X NVMe Competitors

No data available

NetApp AFF vs Lenovo ThinkSystem DM Series

Compared 36% of the time

NetApp FAS Series vs Lenovo ThinkSystem DM Series

Compared 16% 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

Dell Unity XT vs Lenovo ThinkSystem DM Series

Compared 6% of the time

More Lenovo ThinkSystem DM Series Competitors

Product Reports

Buyer's Guide

Pure FlashArray X NVMe

October 2025

Download Pure FlashArray X NVMe product report

Buyer's Guide

Kaminario K2 [EOL]

October 2025

Download Kaminario K2 [EOL] product report

Buyer's Guide

All-Flash Storage

September 2025

Download Lenovo ThinkSystem DM Series product report

Also Known As

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

No data available

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

Kaminario K2 is the world’s only storage solution that delivers the predictability needed to handle the highly unpredictable world of modern businesses. This highly flexible all flash storage platform allows customers to cost-effectively scale capacity and performance to support their ever-changing business –seamlessly, on-demand and with no disruptions.

Data Sheet and eBook

Silk

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

Wargaming.net, El Rio Community Health Center, ECN, SpotOption, Ashkelon College, Clearwater Analytics, Intigua, Cobb EMC Customer Case Study

Information Not Available

Find out what your peers are saying about Dell Technologies, NetApp, Hewlett Packard Enterprise and others in All-Flash Storage. Updated: September 2025.

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