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

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

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

"I use the tool for Oracle databases, Oracle virtual machines, and Oracle Linux databases. I'm on the storage side, not a database administrator."

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

"Pure FlashArray X NVMe helps to improve our processing speed. It is user-friendly and easy to use."

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

"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 offers competitive performance, and the Evergreen storage model of Pure fits well with my organization."

More Pure FlashArray X NVMe pros

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

"The increased performance is many times above our previous array performance in all metrics. Integration with vSphere features is also a definite plus."

"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."

"Logic/software management"

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

"Implementation of the solution is very simple."

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

"Data reduction and snapshot abilities: Smaller footprint in the datacenter (lower cost for power, cooling, etc.)."

More Kaminario K2 [EOL] pros

"Scalable and stable storage array."

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

"The price of this solution is good."

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

"We are satisfied with the stability."

"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."

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

More Lenovo ThinkSystem DM Series pros

Cons

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

"We would like to see VNC integration or be able to use Pure Storage with VNC."

"The software layer has to improve."

"You cannot tag a LUN with a description, and that should be improved. What I like on the Unity side is that when I expand LUNs or do things, there is an information field on the LUN. This is the Information field that you can tag on your LUNs to let yourself know, "Hey, I've added this much space on this date". Pure lacks that ability. So, you don't have a mechanism that's friendly for tracking your data expansions on the LUN and for adding any additional information. That's a downside for me."

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

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

"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."

More Pure FlashArray X NVMe cons

"I would like to see them work with Cisco, so it comes off the FIs, instead of having to go through my 10-gig network."

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

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

"The management graphical interface needs more improvement."

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

"Some of the nice to haves for us, in terms of today, would be VVols but again, it’s not a critical feature."

"A single pane of glass to monitor/manage multiple arrays would be helpful."

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

More Kaminario K2 [EOL] cons

"The solution should change the licensing model and allow customers to choose features based on their requirements."

"The tool's pricing is high."

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

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

"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."

"This is an expensive solution."

"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

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

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

"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."

"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 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."

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

"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."

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

More Pure FlashArray X NVMe pricing and cost advice

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

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

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

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

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

"The licensing is all-inclusive."

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

"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."

"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."

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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

21%

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 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

No data available

NetApp AFF vs Lenovo ThinkSystem DM Series

Compared 32% of the time

NetApp FAS Series vs Lenovo ThinkSystem DM Series

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

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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