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: March 2026).

Buyer's Guide

All-Flash Storage

March 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

Everpure 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

"We generally always advise people to make the choice to go with Pure Storage because they won't regret it."

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

"The best features of Pure FlashArray X NVMe include the volume snapshot capabilities, which allow us to save most of the storage space by volume snapshots periodically."

"Everything works well, and it is very fast."

"The cost for Pure may be high, but the reliability and scalability make it well worth the money."

"Pure Storage has signature security technology, which cannot be deleted, even if you are an administrator."

"FlashArray has some fresh efficiency features. I've never seen a storage solution with a compression rating this high before. It's at least 4-to-1 on Oracle databases. It's the best flash storage for Oracle."

"The most valuable features of this solution are its ease of use and performance."

More Everpure FlashArray X NVMe pros

"The capacity that we're saving by using Kaminario's K2 is giving us a four-to-one ratio for our deduplication."

"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."

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

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

"Rocketing IOPS results in performance we don't have to fixate on, so we can instead focus efforts on other layers in the stack, knowing that our SAN layer is lightning fast, with capacity to spare."

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

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

"I think this product hits all the big features of all the SANs that are out there, all the storage vendors that are out there and more."

More Kaminario K2 [EOL] pros

"In summary, this is a good product and is one that I recommend."

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

"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 most valuable feature of Lenovo ThinkSystem DM Series is its capability to tier to the cloud, such as Microsoft Azure or Amazon AWS, and the integration is good and user-friendly."

"Lenovo offers a good variaty of Storage Systems. Starts with DS, then DE and the most sophisticated version - DM-Series."

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

"Scalable and stable storage array."

More Lenovo ThinkSystem DM Series pros

Cons

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

"It's more multi-tenant functionality in their Pure1 manage portal that is lacking."

"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 portfolio is minimal. It is expensive."

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

"The software layer has to improve."

"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."

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

More Everpure FlashArray X NVMe cons

"Replication and de-duplication could be better."

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

"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."

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

"On the road map, I'm hoping to see Active Directory integration. Right now, you still have to use a local admin account to log in and manage everything."

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

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

"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."

More Kaminario K2 [EOL] cons

"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."

"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."

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

"In comparison with other similar solutions, I think this one is the most expensive."

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

"The solution needs a simpler licensing theme around the DM series."

More Lenovo ThinkSystem DM Series cons

Pricing and Cost Advice

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

"The licensing is on a yearly basis."

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

"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."

"The product is expensive."

"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."

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

More Everpure FlashArray X NVMe pricing and cost advice

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

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

"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."

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

"The licensing is all-inclusive."

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

"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."

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

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Top Industries

By visitors reading reviews

Computer Software Company

12%

Manufacturing Company

11%

Financial Services Firm

10%

Government

No data available

Computer Software Company

20%

Comms Service Provider

Retailer

Outsourcing 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 Everpure FlashArray X NVMe

Compared 13% of the time

HPE Alletra Storage vs Everpure FlashArray X NVMe

Compared 11% of the time

Dell PowerMax vs Everpure FlashArray X NVMe

Compared 10% of the time

TrueNAS R-Series vs Everpure FlashArray X NVMe

Compared 8% of the time

NetApp AFF vs Everpure FlashArray X NVMe

Compared 7% of the time

More Everpure FlashArray X NVMe Competitors

NetApp AFF vs Kaminario K2 [EOL]

Compared 31% of the time

More Kaminario K2 [EOL] Competitors

NetApp AFF vs Lenovo ThinkSystem DM Series

Compared 26% of the time

NetApp FAS Series vs Lenovo ThinkSystem DM Series

Compared 16% of the time

Dell PowerStore vs Lenovo ThinkSystem DM Series

Compared 9% of the time

Lenovo ThinkSystem DE Series vs Lenovo ThinkSystem DM Series

Compared 7% of the time

HPE Alletra Storage vs Lenovo ThinkSystem DM Series

Compared 5% of the time

More Lenovo ThinkSystem DM Series Competitors

Product Reports

Buyer's Guide

Everpure FlashArray X NVMe

March 2026

Download Everpure FlashArray X NVMe product report

Buyer's Guide

Kaminario K2 [EOL]

March 2026

Download Kaminario K2 [EOL] product report

Buyer's Guide

All-Flash Storage

March 2026

Download Lenovo ThinkSystem DM Series product report

Also Known As

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

No data available

ThinkSystem DM Series

Overview

Everpure FlashArray X NVMe delivers high performance, reliability, and low latency, making it ideal for block storage in private cloud infrastructures and mission-critical applications.

Boasting robust data reduction, high availability, and seamless scalability, Everpure FlashArray X NVMe supports databases, VMware environments, and machine learning analytics. Known for its intuitive interface, superior support, volume snapshots, and AI-powered analytics, it efficiently manages storage needs, often deployed to replace outdated systems. Users highlight its simplistic management and easy configuration, although opportunities exist to enhance pricing, replication features, VNC integration, and storage capabilities.

What are the key features?

Data Reduction: Effective compression and deduplication improve storage efficiency.
Seamless Scalability: Easily scales to meet growing demands without downtime.
Volume Snapshots: Quickly create snapshots for data protection and recovery.
VMware Compatibility: Integrates smoothly with VMware environments for optimal performance.
AI-Powered Analytics: Provides insights for enhanced storage management and efficiency.

What benefits and ROI should be considered?

Low Latency and High Availability: Ensures rapid data access and uninterrupted service.
Easy Management: Intuitive interface simplifies configuration and monitoring.
Evergreen Model: Continuous upgrades without disruptive migrations.
Enhanced Support: Reliable service and support for critical applications.

Organizations in industries such as finance and healthcare implement Everpure FlashArray X NVMe to bolster data performance and reliability. They leverage its integration capabilities with Oracle databases and SQL workloads, supporting machine learning and virtualization. It's often chosen to upgrade legacy storage systems, ensuring high availability and speed for demanding environments.

Everpure (formerly 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: March 2026.

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