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, Hewlett Packard Enterprise, NetApp and others in All-Flash Storage.

To learn more, read our detailed All-Flash Storage Report (Updated: January 2026).

Buyer's Guide

All-Flash Storage

January 2026

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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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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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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."

"The latency is good."

"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."

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

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

"It has good, reliable, fast storage."

"Pure FlashArray X NVMe has low latency and high Ops. It is an evergreen model."

"Technical support has been helpful and responsive."

More Pure FlashArray X NVMe pros

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

"The most valuable feature is definitely the always-on data deduplication."

"Inline compression"

"The most valuable aspect is the use of solid-state storage drives instead of spinning drives."

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

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

"Implementation of the solution is very simple."

"It provides a full feature set without separate licensing (deduplication, compression, snapshot, asynchronous replication, stable performance, etc.)."

More Kaminario K2 [EOL] pros

"The servers are fast and affordable."

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

"We are satisfied with the stability."

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

"Scalable and stable storage array."

"The price of this solution is good."

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

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

More Lenovo ThinkSystem DM Series pros

Cons

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

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

"The software layer has to improve."

"It is on the expensive side."

"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."

"The tool's pricing is higher than competitors."

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

"Right now, the box itself is just strictly working as a backend storage system. It would be fantastic if we could access it directly like a NAS device through network access or SIS drives. I think they have an interface, but I am not sure how good it is. If we could address a box directly on the network without having to go through a server, it would be great. The replication schemas could be improved. We are not using replication on the storage level right now. We use a different type of replication. If their replication would be as good as the one that we have, I would probably run the replication schema because it might be faster, but I don't know that for a fact. So, I cannot say that they have good replication. All I can say is that they need to inform us better."

More Pure FlashArray X NVMe cons

"The front panel of the drive shelf doesn't always seat firmly."

"The management graphical interface needs more improvement."

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

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

"I think it should have better performance with small files. With big data, its performance is top notch, but it is difficult to load small files."

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

"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 interface look and feel could be improved."

More Kaminario K2 [EOL] cons

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

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

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

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

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

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

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

More Lenovo ThinkSystem DM Series cons

Pricing and Cost Advice

"The licensing is on a yearly basis."

"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 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."

"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."

"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."

"As far as the licensing costs, everything is included in the license."

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

"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."

More Pure FlashArray X NVMe pricing and cost advice

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

"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."

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

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

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

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

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

"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."

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Manufacturing Company

11%

Financial Services Firm

11%

Government

No data available

Computer Software Company

20%

Comms Service Provider

Manufacturing Company

Retailer

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 16% 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

NetApp AFF vs Pure FlashArray X NVMe

Compared 8% of the time

More Pure FlashArray X NVMe Competitors

No data available

NetApp AFF vs Lenovo ThinkSystem DM Series

Compared 30% of the time

NetApp FAS Series vs Lenovo ThinkSystem DM Series

Compared 16% of the time

Dell PowerStore vs Lenovo ThinkSystem DM Series

Compared 11% of the time

Lenovo ThinkSystem DE Series vs Lenovo ThinkSystem DM Series

Compared 8% of the time

Dell Unity XT vs Lenovo ThinkSystem DM Series

Compared 5% of the time

More Lenovo ThinkSystem DM Series Competitors

Product Reports

Buyer's Guide

Pure FlashArray X NVMe

January 2026

Download Pure FlashArray X NVMe product report

Buyer's Guide

Kaminario K2 [EOL]

January 2026

Download Kaminario K2 [EOL] product report

Buyer's Guide

All-Flash Storage

January 2026

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, Hewlett Packard Enterprise, NetApp and others in All-Flash Storage. Updated: January 2026.

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